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Baltimore, Maryland 21202
United States
|Areas of Practice
|1) Corporate
|Law School
|University of Maryland School of Law
|University of Chicago (B.A., 1977)
|Most recent firm
|Tydings & Rosenberg
|Relevant Jobs
Corporate Associate
Corporate Associate The candidate must have a strong academic record. 3 – 5 years of experience in M&A and corporate transactions preferably within a sophisticated law firm environment. Should have...
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Senior Associate
Senior Associate The candidate will handle insurance, commercial, and corporate litigation. Must have 3-5 years of courtroom trial experience, be licensed and in good standing in Maryland, have stron...
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|+ View more jobs
A. Harrison Barnes is a well-known attorney throughout the United States. As a member of the Malibu community, Harrison is committed to serving the needs of Malibu residents and businesses in legal matters.
Alan Singer is a partner in Morgan Lewis's Securities Practice. Mr. Singer advises companies with regard to a diverse range of corporate and securities matters.


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How To Do A Crimped Structure HairstyleWith Callam Warrington
Callam Warrington's avant-garde tutorial is a crimped structure starting with a triangular ponytail on the centre point of the head in the crown and level with the ear positions. Extensions are added around the head, with pre-coloured extensions with a bold yellow placed in the front of the head. Four doughnuts are added to support the perimeter hair and extensions. All of the hair is crimped and teased before fixing into place. The result is a towering flame with a strong editorial look that's also perfect for shows and catwalks.
Members can also find below a step by step guide to a crimped structure hairstyle.
Technical skills

subset: commoncrawl


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- About
- For researchers
- For organizations
- Contact us
- Log in or Sign up
Data from: Hypothesis-driven and field-validated method to prioritize fragmentation mitigation efforts in road projects
Date Published: April 13, 2015
DOI: http://dx.doi.org/10.5061/dryad.rp46p
Content in the Dryad Digital Repository is offered "as is." By downloading files, you agree to the Dryad Terms of Service. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.
|19 times
|This dataset accompanies Vanthomme H., Kolowski J., Nzamba, B.S., Alonso A. 2015. Hypothesis-driven and field-validated method to prioritize fragmentation mitigation efforts in road projects. Ecological Applications (in press). It contains a copy of the main data file exactly as used for this paper.
|RoadFragmentationDataset.zip (2.082 Mb)
|README.txt (4.399 Kb)
|View File Details
When using this data, please cite the original publication:
Additionally, please cite the Dryad data package:
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Basic Design
Lec-35, Lab-70, field trips
Credit, Degree Applicable
ADVISE: Completion/concurrent enrollment in
An introduction to the basic components of two-dimensional design: subject, form, content, with a focus on their dynamic interrelation. Through observation, analysis, discussion of traditional and contemporary approaches in fine and commercial arts, students learn to apply the elements and principles of visual organization to creative projects using various media.
All sections will charge a material fee of $10.00
After successful completion of this course, students will be able to:
Outcome 1: Distinguish, explore, employ and organize design elements (line, shape, value, texture, color) to create unified space in two-dimensional compositions.
Outcome 2: Formulate own ideas, in response to assignments given, through research, visual references and rough sketches, to create finished 2D artworks that integrate elements of design with principles of visual organization for effective visual communication.
Outcome 3: Apply technical skills using a variety of basic art materials and processes (pencils, markers, ink, collage, paints, and current technologies as relevant) to create 2D artworks in response to projects assigned in the course.
Outcome 4: Analyze, compare and contrast the visual dynamics in various 2D works with respect to process, purpose, subject, form, content, and context.
Outcome 5: Identify, appraise, and articulate, using language with correct art vocabulary, the visual dynamics found in own work and in the works of peers in critiques, and in examples of artworks provided in classroom learning activities.
Outcome 6: Evaluate and improve own creative work in response to feedback provided by the instructor and by peers in critiques.
Outcome 7: Acquire overall visual literacy and art historical awareness through the introduction of a broad range of traditional and contemporary approaches in fine and commercial arts.
Outcome 8: Synthesize the visual mechanics of 2D space in preparation for more advanced coursework in the field of art.
Outcome 9: Demonstrate the ability to engage in cognitive processes essential to critical thinking- a skill beneficial in all disciplines- through constant analysis of the interrelations between a whole and its parts that lead to the construction of well-designed and sound structures.
Find more details on this course in its official
Course Outline of Record


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|This article is about the Road to Survival character. You may be looking for his Video Game counterpart, the Comic Series character, the actor, or the other actor.
Larry is a Telltale Games adapted playable character in The Walking Dead: Road to Survival.
Pre-Apocalypse & Post-Apocalypse
Main Article:
As a Playable Character
Larry - "Telltale Special Edition"
- Persona: Soldier
- Trait: Strong
- Rarity: Epic (5 Stars)
- Leader Skill: All strong teammates get +24 crit. You also get a medium bonus to item drop chance.
- Adrenaline Rush: Slaughter (Deal 275% damage and -45% attack for 3 turns to one enemy and all enemies adjacent to it.)
Killed Victims
This list shows the victims Larry has killed:
- David Parker (Zombified, Determinant)
- Travis (Zombified, Determinant)
- Numerous counts of zombies.
- Himself (Indirectly Caused, Heart Attack)
- Brenda St. John (Indirectly Caused, Alive)
- Danny St. John (Indirectly Caused, Alive)
- Andrew St. John (Indirectly Caused, Alive)
After suffering a heart attack, Lilly tries to save him, but Kenny believes that he is dead and his brain must be destroyed to prevent him from coming back as a walker and devouring them.
- Kenny (Caused, Assumed Before Reanimation)
Lee then has to decide who to help. Either way, Kenny picks up a salt lick and drops it on his head, destroying his brain.
- Lee Everett (Indirectly-caused, Assumed Before Reanimation, Determinant)
If Lee helps Kenny, he assists him in destroying Larry's brain by preventing Lilly from giving CPR to and shielding her father.


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George Sempepos
Son House and Bukka White: Masters of the Country Blues
American musical titans Eddie "Son" House and "Bukka" White -- both landmark figures in the flourishing of Mississippi Delta blues -- influenced artists ranging from Robert Johnson to Muddy Waters to Eric Clapton. In this hypnotic video, the legendary bluesmen perform before a studio audience in Seattle. Tunes include "Preaching the Blues," "John the Revelator," "Death Letter Blues," "Mama Don't Allow" "Gibson Hill and "Poor Boy."


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We are looking for a Product Manager with start-up experience to come help us shape the future of robotic process automation. The Product Owner will be responsible for the overall and ongoing success of a product. Once the project to build the product is complete and the project manager has moved on, the product manager remains to manage the product through the entire lifecycle. Other projects related to the product may be initiated, with the product manager being the one constant stream throughout, defining the project goals and guiding the team to accomplish the business objectives that have been defined.
Some things we need from you
- Participates in overall product strategy, research & development efforts, and coordination with software development teams for new product features;
- Keeps up to date with competitors and analyzes the competitive landscape to translate into product requirements and marketing plans;
- Actively leads product development teams to define product priorities and work with product analyst;
- Responsible for overseeing the development, prioritization, and maintenance of accurate user stories to make effective use of development resources;
- Works with Support and operations teams to achieve client satisfaction for clients using the products;
- Coordinates technical product development and operations resources to establish and manage the overall release process from requirements planning to customer deployment;
- Review status of projects and budgets; manage schedules and prepare status reports;
- Support application documentation development;
Some things you need to have
A qualified candidate for the Product Manager position will have:
- Bachelor's Degree in Business, Software or related field, advanced degree preferred;
- Proven ability to influence cross-functional teams;
- Strong customer relationship building skills;
- Exceptional communication and leadership skills;
- Strong project management and organizational skills;
- Highly numeric aptitude with strong analytical skills;
- Demonstrable proficiency in Microsoft Office applications and others as required;
- Start-up experience or relevant exerience in a product software company;
Some things we offer to you
We are offering flexible working hours in a nice office and free daily premium catering. Competitive salary, stock options for the candidate experience but we believe that working with us to develop a world leading robotics technology is the big plus for you.


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the dark side by dorguskaWatch
©2012-2017 dorguska
Hey Your photo got featured: favorites of seüptember '12. Please fav this article so that more people can see it and your photo
Great impact for a beautiful model
so great job! love this work! for me its work!
Beautiful framing.
Wow, this is amazing. It's like the violin is making up the other side of her face.
can you play it? I love the way everything blends in so well. nice one.
i seriously adore this! such a creative idea and it tuned out well


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Thanks Christina - your link is below :0)
Don't forget to ask mom and dad first
Do you want to learn more about our wonderful country and our government? Visit this website!White House for Kids
Find out all sorts of interesting facts and information and even experiments that you can do at home!National Geographic for Kids
This site has really fun books, stories, and comics to read... or click on the words, and the site will read them to you! Second graders should choose number 3 or 4!Starfall
Exercise your brain with these fun games for kids! You just might learn something while you're at it!Games for Kids!
Pick your brain some more!More Games for Kids!
Click on the section for kids to find games and facts about some of your favorite books!Scholastic's Website
This site made by PBS has some great reading games!PBS Kids
Keep up with the latest science news for kids! This site also has games and lots of real pictures!Science!!
Find out what is going on at your White Pigeon Community Library!White Pigeon Library
Many different games to test your math, reading, and spelling skills! Are you up for the challenge?Games games games!
Test our your contraction making skills on this site.Contraction Challenge
Try your writing skills, share your imagination, read fun stories and maybe even get published on the Internet!Write Me a Story Challenge
How well do you know the USA? Try your hand at the USA jigsaw puzzle!States Puzzle
Make your own kaleidoscope! Put it on "Auto" for a real show!You've Gotta See This!
Find out about all different kinds of weather conditions, see pictures, and make your own weather instruments!Weather for Kids
Look into outer space at this site! You can even design your own planet!Astronomy for Kids
Make a card, color a picture on your computer, and find out how crayons are made at Crayola's Website!Crayola
Making Predictions
Help Dig-it to figure what is buried in the park
Sequencing Practice
http://pbskids.org/arthur/games/storyscramble/scramble.htmlScroll to the bottom of the page for the activities
Syllable Factory
Students break words into chunks
Word OrderMonkey Business - http://www.earobics.com/gamegoo/games/monkey/monkey.html
Real or Make BelieveTina's World Real or Make Believe SpellingFearless Frieda alphabet practice http://www.abcya.com/first_grade_computers.htm
Real or Make BelieveTina's World Real or Make Believe SpellingFearless Frieda
SpellingFearless Frieda
alphabet practice
Patterns - odd/even* Kids - this is great practice for understanding your ones/tens/hundreds/thousands/etc. place
Place Value Puzzler
* This is a fun flying dragon game, you find the eggs and click on whether the numbers are odd or even.
Dragon Eggs (Odd/Even)
* This is a fun way to practice putting numbers in order.
Least to Greatest Practice
* Number Cracker (Patterns)
* Pattern Mania
* Pattern Quest
+/-* Addition Matho
* Addition Machine
* Number Monster
* The Timernator
* Subtraction Machine
* Subtraction Hidden Picture
* If you love baseball this is the game for you, you can choose easy, medium or hard and you can choose + - or x
Math Baseball
* Sum Sense
* High Rise Math (2 Players)
* Subtraction Tic Tac Toe (2 Players)
• Saxon Math Graphing• Create A Graph• Tally Charts• Bar Graph Creator• Graph Goodies• Probability• Mean, Median, and Mode• Interpreting Data- This is great for practicing graphing
Thank you to http://www.teacherweb.com/mi/centralelementaryschool/mrsbainbridge


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Hey guys!!! it's your #1 blog writer here
To late
I know it's a little late but what did you think of Bioshock 2's special edition?
I thought it was cool. But even better I got it today and I got a camera so I will be taking pictures from the artbook give me a shout if you want a picure or concept


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|Message view
|« Date » · « Thread »
|« Date » · « Thread »
|"Randy Paries" <randy.par...@unitnet.com>
|Is there a way to get the Doc Root
|Mon, 30 Jul 2001 18:05:35 GMT
RE: what is this number -2147483646Hello, This may be more of a JSP or Servlet question, but I am sure someone in this group would know the answer I have an Web application /Myapp and I have a bunch of jsps in an admin directory. I am going to distribute this in a generic war file. So to access my admin index I would do something like http://host/Appname/admin/admin.jsp The problem is I do not know what the end user is going to call the application(Appname). So How do I get the Document root. I can do a path = <%= request.getRequestURI() %> and do some substring stuff. <%= application.getRealPath("") %> doesn't give me what I need. I was hoping for an application.getPath("") Thanks for any Suggestions.. Randy -----Original Message----- From: Raphael Lemaitre [mailto:firstname.lastname@example.com] Sent: Thursday, June 21, 2001 10:57 AM To: 'email@example.com' Subject: RE: what is this number -2147483646 -2147483646 is Integer.MIN_VALUE With this value, this servlet is loaded first (the less load-on-startup value is, earlier the servlet is loaded) Raphael Lemaitre > HI > What is the meaning of the foll. code in web.xml file for startup > servlets. > > <load-on-startup> > -2147483646 > </load-on-startup> > > > can any one know .. > > Rgds > venkatesh >
|View raw message


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Econometrics and decision making: Effects of presentation mode
Much of empirical economics involves regression analysis. However, does the presentation of results affect economists' ability to make inferences for decision making purposes? In a survey, 257 academic economists were asked to make probabilistic inferences on the basis of the outputs of a regression analysis presented in a standard format. Questions concerned the distribution of the dependent variable conditional on known values of the independent variable. However, many respondents underestimated uncertainty by failing to take into account the standard deviation of the estimated residuals. The addition of graphs did not substantially improve inferences. On the other hand, when only graphs were provided (i.e., with no statistics), respondents were substantially more accurate. We discuss implications for improving practice in reporting results of regression analyses.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
|Date of creation:
|Feb 2010
|Contact details of provider:
| Web page: http://www.econ.upf.edu/
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Deirdre N. McCloskey & Stephen T. Ziliak, 1996. "The Standard Error of Regressions," Journal of Economic Literature, American Economic Association, vol. 34(1), pages 97-114, March.
- Camerer, Colin F & Hogarth, Robin M, 1999.
"The Effects of Financial Incentives in Experiments: A Review and Capital-Labor-Production Framework,"
Journal of Risk and Uncertainty,
Springer, vol. 19(1-3), pages 7-42, December.
- Camerer, Colin F. & Hogarth, Robin M., 1999. "The Effects of Financial Incentives in Experiments: A Review and Capital-Labor-Production Framework," Working Papers 1059, California Institute of Technology, Division of the Humanities and Social Sciences.
- Simon, Herbert A, 1978. "Rationality as Process and as Product of Thought," American Economic Review, American Economic Association, vol. 68(2), pages 1-16, May.
- Carhart, Mark M, 1997. " On Persistence in Mutual Fund Performance," Journal of Finance, American Finance Association, vol. 52(1), pages 57-82, March.
- Baltagi, Badi H., 2007. "Worldwide Econometrics Rankings: 1989 2005," Econometric Theory, Cambridge University Press, vol. 23(05), pages 952-1012, October.
- Badi H. Baltagi, 2007. "Worldwide Econometrics Rankings: 1989-2005," Center for Policy Research Working Papers 94, Center for Policy Research, Maxwell School, Syracuse University.
- Kahneman, Daniel & Tversky, Amos, 1979. "Prospect Theory: An Analysis of Decision under Risk," Econometrica, Econometric Society, vol. 47(2), pages 263-291, March.
- Amos Tversky & Daniel Kahneman, 1979. "Prospect Theory: An Analysis of Decision under Risk," Levine's Working Paper Archive 7656, David K. Levine.
- Tversky, Amos & Kahneman, Daniel, 1986. "Rational Choice and the Framing of Decisions," The Journal of Business, University of Chicago Press, vol. 59(4), pages 251-278, October. Full references (including those not matched with items on IDEAS)This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.


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SD card combines SanDisk Flash Memory control with MLC (Multilevel Cell) and Toshiba 0.16u, 0.13u NAND technology together in its 24mm * 32 * 2.1mm size. It connects with special driver through 9 pins port, and it needn't extra power to maintain the memorized information. It is a unified solid dielectric, and it does not have any movable part, so there is no need to worry about the damage of mechanical motion.
SD card is applied in the following mobile digital devices:
● Digital camera. Save photos and videos.
● Digital camcorder. Save photos and videos.
● PDA. Save all kinds of information.
● Mobile phone. Save photos, rings, music, videos, etc.
● Multimedia player.
SD card is mostly used in MP3, DV, DC, etc, and also in Notebook. The projected area is as big as MMC card, but a little bit thicker: 2.1mm. The capacity of SD card is much bigger, and the read-write speed is 4 times faster than MMC card. At the same time the port of SD card is compatible with MMC card port. Most of the SD port also support MMC card. At present the application of SD card is rapidly spreading and has a trend to predominate in the DC camera market. This year the development of SD card is very fast and it has threatened the market share of CF card. That is because the size of SD card is much smaller than CF card, and the gap of capacity, performance, and price between SD card and CF card is getting narrower. Recent years phones that support SD card have been popular in the market. Therefore the rapid growing of SD card is not accidental. The most important point is that MMC is compatible with SD card. This is one of the reasons why SD card can get so popular. However, in some production like mobile phone, SD card is not compatible with MMC card. The capacity of SD card varies from 8MB to 32GB.
The size of SD card is very small. Before buying it the consumer usually will not have much information about it. It is a little difficult to identify from the appearance. Here are some ways to identify the common brands SanDisk SD card: firstly, check the card to see if there is laser chatoyancy label on the front side of pack. And the label will change color with the different angles. Secondly, check the quality card of agency. The pack is plastic, and it is the same with the one just mentioned. But the "5 years guarantee" and Japanese on the right below have been changed to image.
Besides, you can also check that if there are any gaps on the bottom of the card. The number on the back pack of SanDisk SD card is unique, and can be inquired by telephone. It is said the enquiry system has not been built.
In 2006, the capacity of SD card varies from 8, 16, 32, 64, 128, 256, or 512 MB, to 1, 2, 4, 6, 8, (SDHC) GB.
SD/MMC card has replaced SM card developed by Toshiba and becomes the most common digital memory card form of portable DC. In 2001, SM card takes 50% market share and then falls to about 40% in 2005 and keeps falling. Most of DC producers provide SD card support including Canon, Nikon, Kodak, Panasonic, and KONICA MINOLTA. Other three leading firms still insist to use their patent forms: Olympus and Fuji use XD card, and Sony uses Memory Stick. Besides, SD card has not penetrated into the DSLR market which CF card takes up the leading position. (D50 released by Nikon in 2005 support SD.) SD card is made by Toshiba by adding encryption technology based on MMC technology. As MMC card may be used to copy digital music by users, Toshiba adds this technology to make the music industry feel safe. It is similar to Sony's MagicGate. Theoretically digital copyright management can be added to encryption technology, but this function has not been used very often. Users can use SD card through a USB card reader on computer. Some new type computers have been installed with built-in card reader device. The newest invention is building USB port in SD card and leaving out the card reader. The design of SanDisk is adding a folding jacket to protect USB port. Though SanDisk is not the first firm to add built-in USB port, because of its important position, it still makes other firms to follow the trend. Actually SD mark is firstly used in an entirely different way: it is firstly used at "Super-Density Optical Disk". But this production of Toshiba suffers defeat in the battle of DVD form. That's why the "D" looks like "Disk".
SD series memory card is authorized by SD card association after testing by SanDisk. Therefore almost all the paten right is hold by SanDisk.
Mini SD and Micro SD card
With the development of SD card storage technology, Mini SD and Micro SD card have shown up.
Mini SD
Mini SD is developed by Panasonic and SanDisk. For the convenience of more users to change to use Mini SD, SanDisk has specially developed SD convert card. It can be used with SD card DC, PDA, and MP3 at the same time. Mini SD is only 37% big as SD card, but it still has the same read-write function and large capacity of SD card. It is compatible with SD card. Through the SD convert card it can be used as normal SD card.
Micro SD
SD card association firstly brings T-flash into the subminiature storage card production family, and named it Micro SD. After the release of nail big Micro SD, the consumers are all amazed by it. And now many phones are using this kind of memory card. MMC micro and Micro SD rank together the smallest mini memory card in the world. With the super mini size and greater advantages, it can be used in all kinds of digital production and doesn't waste much space of products' inside design. It is so popular among the designers and helps to make exquisite digital life a lot.
Overwrite-protect switch
There is a switch at the right side of SD card: overwrite-protect switch. MMC card does not have this switch. When the switch is turned down, SD card is protected from overwriting, and the information on the card can be read only. When the switch is turned on, the card can be overwritten again. As the switch is choosable, some SD card of other brands doesn't have this switch. The theory of overwrite-protect switch is similar to tape, VHS tape, computer floppy disk. The off state means it can be overwritten, on state means it is protected. If the switch is broken, this card will turn to be read only. There is a solution to solve the problem: seal up the notch and then the card can be overwritten all the time. SD card produced by Kingmax has no overwrite-protect switch because they think the switch is too fragile. Their SD card is the same thick with MMC card: 1.4mm.
Different types of MMC/SD card
4GB SDHC and SD card is not the only storage card standard of authorized standard by security digital card association. Other forms includes mini SD, micro SD (it is called TransFlash before identified by the association), and SDHC. These mini cards can be used on the full size MMC/SD/SDIO slot with an adaptor. It is very challenging to develop input-output device on SD card size. It is unpractical to develop smaller size. SD slot support MMC card, and smaller size MMC card can be compatible with SD card devices. Different from mini SD and micro SD, RS-MMC slot is compatible with full size MMC card. That is because RS-MMC card is only the shorter MMC card. Related information, please refer to MMC card. The upper limit of normal SD card is only 4GB, and it cannot satisfy the growing need for capacity. So the association has made the new SDHC standard. The appearance of SDHC card is completely the same with normal SD card but the lower limit of capacity is 4GB. It is said the 32GB SDHC card will be released this year.
Other information
Sometimes the users of SD phone will get in the trouble that the phone cannot read the card even after a few times plugging. Check the following situations to see what the problem is:
(1) SD chip is dirty.
Because of the careless protect for chips, sometimes there will be dust or dirt.
Discrimination; check that if the metal area is black or there is any spot on it.
Handling: use cotton with alcohol or water to wipe it gently. Plug it in when it gets dry.
(2) Battery voltage.
Some good-qualified card requires stable power supply, and the bought battery is not good enough as original battery, so that may cause the problem.
Discrimination: when using the bought battery, if the state of stand by is not good, it may be the problem of battery.
Handling: Change the battery.
(3) The slot is squeezed.
The design of slot is very delicate of some ultrathin devices. If the thickness of battery exceeds certain requirement the slot will be squeezed.
Discrimination; Change the battery to the original battery.
Handling: Use the original battery. Use something to reshape the slot.
(4) The wires inside of the slot rust or bend over.
Some phones support hot-plug, and frequent plug-in and out makes the wires bend over.
Discrimination; Check the slot under light if the wires are at the same position.
Handling: Try to bend the wires back.
(5) SD card gets virus.
For some smart phones, if the SD card gets virus on the computer, it will not be read on the phone.
Discrimination; Scan the SD card on the computer.
Handling: Format the card on the computer or some low specification storage (such as camera). If format it on the computer, you should choose FAT form but not FAT32 form.
(6) SD card is formatted improperly
As the forms of phones and computer formatting are different, redefine the file form and format the card again as the introduction. Please be sure the form of card is FAT, because FAT32 won't be read in E680.
(7) SD card is broken.
It is very easy to judge. Plug the card in the card with card reader. If it can be read it is all right.
(8) The phone is broken.
If it is the problem of the phone, send your phone to repair.
Hope these advices can help you.


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Demand for carpet flooring is increasing all over the world due to the comfort, warmth and absorption of sound it provides. Carpet is the most preferred if kids are around as it reduces the risk of injury during falls and slips and there is no possibility of skids. If there are people with foot injuries or joint problems, thick padding under the carpet can make it more comfortable, it is a good flooring type if there is lot of standing or walking done in that area.
Tuesday, 24 February 2015
Thursday, 29 January 2015
Reasons to choose Cork Flooring for your Home
Have you ever considered cork flooring as an option in your home? If you're in the market for floors and want something a bit special or something different, than cork is the best option for the ideas you're looking for. Cork is extremely environmental friendly, renewable, sustainable material and can say "a multitude of green characteristics". Regardless to its looks, cork is durable and has several unique positive advantages that make your home more comfortable and healthier and of course a great alternative to other popular options.
Thursday, 15 January 2015
How to Maintain Marble Floors?
Marble offers a lavish flooring option that boasts of classiness and beauty to your home. Installing marble is a wonderful addition to one's home. Though marble has an alluring appearance, but also a delicate stone flooring and should require a great care on a regular basis to maintain your floor's clean and shiny. To keep in looking its best for years, it requires proper care and protection to prevent stains, breaks and scuffs. It is also important to take care of spills as soon as they occur so that water or other liquids will not get stained on your marble floors.
Posted by Express Flooring at 03:05 1 comment:
Labels: How to Maintain Marble Floors?
Location: Arizona, USA
Tuesday, 30 December 2014
Methods of Removing Rust Stains from Ceramic Tile
Ceramic tiles are made up of natural clay and other material. Ceramic tiles are available in wide colours and designs with an amazing surface finishes in both glossy and matte. Ceramic tile flooring is a great option to be installed in any part of your home, at the same time maintenance is also important for a new look enough after the ages of your flooring. Through routine cleaning with water and a mild soap can bring your floor to fresh and clean. But at times, it could be difficult to remove some stubborn marks like rust stains on your ceramic tile flooring. To remove those annoying stains on ceramic, try these cleaning methods to get your tile looking new again.
Thursday, 11 December 2014
How to Install Carpet on Stairs?
In a typical space you can walk out randomly, your feet moving here and there on the floor. But in case of stairs, the only motive is being attentive while walking along with the way showed by the construction itself. When choosing to carpet your stairs you must to be very cautious, as staircases are one of the heaviest trafficked zones in a residence. Carpet on a staircase will hold lots of abrasions on the steps and come with a visual aspect to a home's décor. Because the stairs are so heavily travelled on, knowing how to carpet stairs is always recommendable. If performed well, carpeting your stairs can be soft, durable, warm and even safe padding to a stairway.
Thursday, 27 November 2014
Hardwood Floors- 7 Secrets for Selecting the Perfect Flooring
Do you know that hardwood flooring is healthier than any other kind of floor covering? Indoor air quality is one of the largest health threats that humans experience every day. So, by installing a hardwood floor you can improve the quality of the air exceptionally in your home. At the same time, you should follow a couple of important functional and design thoughts to create an amazing and welcoming look of hardwood flooring in your home.
Thursday, 13 November 2014
Why Hardwood Floors are Awesome?
Hardwood flooring enables you to cherish the natural beauty and rich ageless appearance in any room of your home. Hardwood flooring is one of the most modern type of flooring, available with a wide variety of features and characteristics to complement any décor, from the most old- fashioned to the most modern. This modern hardwood flooring is increasingly becoming popular among many homeowners due to its everlasting benefits. Hardwood floors are being used for both residential and commercial areas. These hardwood floors add a touch of class as well as structural potency to your home's interior.
Regardless of being a traditional choice, hardwood floors have a variety of other functional advantages too. Hardwood flooring is ultimate for bedrooms, living rooms, drawing rooms and in all other areas of your home. Hardwood flooring is one of the most practical and decorative options among many homeowners, other benefits that include-
Regardless of being a traditional choice, hardwood floors have a variety of other functional advantages too. Hardwood flooring is ultimate for bedrooms, living rooms, drawing rooms and in all other areas of your home. Hardwood flooring is one of the most practical and decorative options among many homeowners, other benefits that include-
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text:
Learn More
Thermo Scientific™ SatI (Fnu4HI)
The SatI (Fnu4HI) restriction enzyme recognizes GC^NGC sites and cuts best at 37°C in G buffer (Isoschizomers: Fnu4HI, Fsp4HI, ItaI).
Manufacturer: Thermo Scientific™ ER1642
Lambda DNA digested with SatI (Fnu4HI), 1.4% agarose, 380 cleavage sites
conventional restriction endonucleases are a large collection of high quality restriction enzymes, optimized to work in one of the buffers of the Five Buffer System. In addition, the universal Tango buffer is provided for convenience in double digestions. All of the enzymes exhibit 100% activity in the recommended buffer and reaction conditions. To ensure consistent performance, Thermo Scientific restriction enzyme reaction buffers contain premixed BSA, which enhances the stability of many enzymes and binds contaminants that may be present in DNA preparations.5'...G C▵N G C...3'
Conditions for 100% Activity
- 1X Buffer G:10mM Tris-HCl (pH7.5 at 37°C), 10mM MgCl2, 50mM NaCl and 0.1mg/mL BSA
- Incubate at 37°C
Storage Buffer
- SatI is supplied in:10mM Tris-HCl (pH7.4 at 25°C), 100mM KCl, 1mM DTT, 1mM EDTA, 0.2mg/mL BSA and 50% (v/v) glycerol
Ligation and Recleavage
- After 50-fold overdigestion with SatI, more than 60% of the DNA fragments can be ligated in a reaction mixture containing 10-30U of T4 DNA Ligase/1μg of fragments and 10% PEG
- More than 90% of these can be recut
Methylation Effects
- Dam: never overlaps — no effect
- Dcm: never overlaps — no effect
- CpG: may overlap — blocked
- EcoKI: never overlaps — no effect
- EcoBI: never overlaps — no effect
Compatible Ends
- GC^SGC — BcnI, Bme1390I
- GC^WGC — MvaI, Bme1390I
At least two copies of SatI (Fnu4HI) recognition site are required for efficient cleavage.
|SatI (Fnu4HI)


text:
Problem with free surface in groovyBC
1 Attachment(s)
I try to use the groovyBC to generate waves. At the wave maker the alpha1 surface fluctuates to domain boundaries (I do not know why) and that affects the generated waves as well as adds extra quantities of alpha1 to the domain through the atmosphere patch.
Please take a look at the prob:
I attach the case directory.
Hi Hisham,
Have you solved your problem? It seems your g file was mis-changed. It should be (0 -9.81 0). Hope it is helpful.
Sorry you are right here, g is (0 -9.81 0) in your attached file. I do not know the reason.
Unfortunately, no. I was away from this problem for a while now but I'll be back to it soon. I'll drop a post if I solve it. I guess it has to do with the BCs.
|All times are GMT -4. The time now is 01:48.


text:
Blogs - Tags - z196 Blogs urn:lsid:ibm.com:blogs:entries 0 30 10 2015-05-15T16:43:55-04:00 IBM Connections - Blogs urn:lsid:ibm.com:blogs:entry-43e385d0-1ea7-4e54-a542-aa1d448250bf Crypto Express Card Capacity Planning Eysha Shirrine 110000ME21 active false Eysha Shirrine 110000ME21 active false 79c1eec4-00c4-48ef-ae2b-01bd8448dd6c Comment Entries application/atom+xml;type=entry Likes true 2017-05-03T10:20:25-04:00 2017-05-05T13:43:38-04:00
How do you determine the number of Crypto Express cards that you need and/or when to consider purchasing more cards? Unfortunately, there isn't an easy way to determine the number of cards needed up front. Hopefully the information below will help.

Initial Card Setup

You would generally start with at least 2 cards of each type needed in your environment (e.g. CCA Accelerator, CCA Coprocessor, EP11 Coprocessor) for redundancy. If one card needs to be taken offline (for example, MCL upgrade), the second card (loaded with the same MK as the first) would be able to handle the same requests.

Ongoing Card Management

After initial setup (with a minimum of 2 cards), the number of additional crypto cards needed is typically based on what you consider to be an acceptable threshold for utilization per card. You would run in an environment with a baseline number of cards and monitor their usage.

Monitoring Card Usage

Two options for viewing and/or monitoring card usage are z/OS RMF and the Monitors Dashboard on the SE:

z/OS RMF can create post-processed Crypto Hardware Activity reports which would show the utilization percentage for each card. https://www.ibm.com/support/knowledgecenter/SSLTBW_2.1.0/com.ibm.zos.v2r1.erbb500/erbb500402.htm

The Monitors Dashboard on the SE can be used in real time to view adapter type and monitor usage. It takes measurements every 15 seconds and displays the value. You can also start a histogram to show adapter utilization as a line graph over time. https://www.ibm.com/support/knowledgecenter/HW11P_2.13.1/com.ibm.hwmca.kc_se.doc/dashboard/Dashboard.html

So, the step-by-step process would be:

Establish a crypto card utilization threshold (for example, 50% utilization)

Monitor crypto card utilization over a period of time

If the crypto card utilization exceeds the threshold, decide if you want to purchase more cards

Crypto Card Performance / Throughput

For general crypto card performance throughput, reference the Crypto Performance WhitePaper associated with your z System / Crypto Express cards

z13 / CEX5S

zEC12 / CEX4S

zEnterprise 196 / CEX3

 How do you determine the number of Crypto Express cards that you need and/or when to consider purchasing more cards? Unfortunately, there isn't an easy way to determine the number of cards needed up front. Hopefully the information below will help. ... 0 0 1427 urn:lsid:ibm.com:blogs:entries-fd2e32b2-adf6-4d07-a183-11d9549722a9 IBM Crypto Education 2017-07-18T17:28:36-04:00 urn:lsid:ibm.com:blogs:entry-90275edd-366b-41be-a332-27a996cdbeea IBM Security zSecure 2.2.1 JeroenTiggelman 27000186A5 active false JeroenTiggelman 27000186A5 active false 5e65990a-9690-42e2-93b1-c2267be7620c Comment Entries application/atom+xml;type=entry Likes true 2016-12-09T12:40:09-05:00 2017-07-05T16:02:03-04:00
IBM Security zSecure suite 2.2.1 was announced on October 25, 2016 with a planned availability date of December 9, 2016. You can read the US announcement letter here. This release provides live SMF event streaming to IBM QRadar SIEM, enhanced alerting capability in zSecure Alert based on specific access events captured by zSecure Admin Access Monitor, improved scalability through exploitation of 64-bit addressing mode, new policies in zSecure Command Verifier including the ability to link denial of access to an external security rule, zSecure Audit Compliance Testing Framework enhancements, and currency for DISA-STIG 6.29, PCI-DSS 3.2, CA-ACF2 16, CA-Top Secret 16, MQ 9, Windows Server 2016, RACF Multi-Factor Authentication, and Integrated Cryptographic Services Facility HCR77B1.

Background

IBM Security zSecure suite can help you protect your enterprise, detect threats, comply with policy and regulations and reduce costs. Most of the products run on the z/OS operating system. The zSecure for z/OS release numbers follow those of z/OS. For complete support of a z/OS release, you generally need the same release of zSecure. IBM Security zSecure helps protect various mainframe sub-systems, including DB2, CICS, IMS, and MQ. zSecure Command Verifier intercepts RACF commands before they are issued and helps enforce compliance by preventing erroneous commands. zSecure Access Monitor intercepts access requests and can record them even when they are not being written to the System Management Facilities (SMF) event log. zSecure Alert listens to SMF records and Write To Operator (WTO) console messages as they are being written and sends out security alerts in real-time.
 IBM QRadar SIEM consolidates log source event data from thousands of devices endpoints and applications distributed throughout a network. IBM Security zSecure allows sending z/OS, RACF, ACF2, Top Secret, DB2, and CICS events from the System Management Facilities (SMF) log to QRadar SIEM enriched with information from the security database and system snapshot (CKFREEZE) information. This support was first provided in a Service Stream Enhancement (SSE) to zSecure 1.13 (2012), using a batched approach that collected event files using FTP polling. Real-time support for alerts sent out by zSecure Alert was provided later that same year.
 The zSecure Audit Compliance Testing Framework was added in zSecure 1.13.1 (2012). A user interface was first provided in zSecure 2.1.0 (2013). The Security Technical Implementation Guide (STIG) from the United States Defense Information Systems Agency (DISA) provides a framework for ensuring that security is set up properly. IBM Security zSecure Audit helps automate compliance control points belonging to this standard as well as for the Pay<wbr></wbr>m<wbr></wbr>ent<wbr></wbr> <wbr></wbr>Car<wbr></wbr>d<wbr></wbr> In<wbr></wbr>d<wbr></wbr>ust<wbr></wbr>r<wbr></wbr>y D<wbr></wbr>a<wbr></wbr>ta <wbr></wbr>S<wbr></wbr>ecu<wbr></wbr>r<wbr></wbr>ity<wbr></wbr> <wbr></wbr>Sta<wbr></wbr>n<wbr></wbr>da<wbr></wbr>r<wbr></wbr>d (PCI-DSS) from the Payment Card Industry Security Standards Council and GSD331/ISeC (a global services document with security controls documentation from IBM).

IBM Multi-Factor Authentication for z/OS helps security administrators enforce a policy that requires authentication with multiple factors during the logon process. It is designed to work with IBM z/OS Security Server RACF to centralize the information of valid factors within RACF to help clients accelerate deployment, simplify management with existing infrastructure, and be able to more simply achieve regulatory compliance and reduce risk to critical applications and data.

IBM Security zSecure Manager for RACF z/VM helps you protect your z/VM systems. You can feed the data collected by its zSecure Collect for z/VM (CKVCOLL) component into IBM Security zSecure Admin and zSecure Audit. This allows comprehensive analysis including both z/OS and z/VM systems.

IBM Common Data Provider for z Systems provides access to z/OS operational data in near real-time. It is a companion product to IBM Operations Analytics for z Systems.

64-bit addressing was introduced to the mainframe by z/Architecture in 2000 through the z900. Later hardware (z800, z990, z890, z9, z10, z196, z114) has added progressively more 64-bit capable machine instructions. An inherent feature of 64-bit addressing is that 8-byte addresses are required, so more memory needs to be read (and written). zSecure has chosen to provide the CKR8Z196 program so that it runs on z196 and later hardware, as the z196 introduced machine instructions that allow better performance when using 64-bit addressing than older hardware.

The common query language employed by zSecure Admin, zSecure Audit, zSecure Manager for RACF z/VM, zSecure Alert, and zSecure Adapters for QRadar SIEM is called the CARLa Auditing and Reporting Language (CARLa).

Benefits
 IBM Security zSecure 2.2.1 provides
 * near real-time integration of enriched SMF events into QRadar SIEM via the syslog protocol (TCP or UDP) and enhancements to the syslog protocol for zSecure Alert;
 * ability to send RACF VERIFY events from zSecure Access Monitor to zSecure Alert--this allows for example detection of TSO logons, even though no SMF records are written;
 * automatic recognition of configuration data sets for zSecure Alert, zSecure Access Monitor, and the QRadar feed as sensitive;
 * additional automated STIG controls for RACF, ACF2, and Top Secret and extensions to the compliance testing framework (DOMAIN CONFIG, TEST ASSERT, DEFSENS, etc.);
 * exploitation by default of virtual storage above "the 2GB bar" plus performance and scalability enhancements, particularly for ACF2 and DB2 processing;
 * ability to configure an additional message text for a particular policy verification--for example to link to company policy;
 * ability to 'lock down' users and groups to their current access levels and new policy for use of the SHARED keyword with UIDs and GIDs;
 * user interface enhancements, notably including productivity enhancements for administration;
 * support for RACF enhancements for Multi-Factor Authentication, including out-of-band authentication support for IBM Multi-Factor Authentication for z/OS 1.2 (November 2016) in zSecure Admin and Audit;
 * support for new function in z/OS shipped in the service stream--for example security bypass authorization;
 * currency support for ACF2 16 (incl. global password options and the ability to RETIRE logonids), Top Secret 16, MQ 9, DISA-STIG 6.29, PCI-DSS 3.2, and ICSF HCR77B1--and toleration for z/VM 6.4.

Prerequisites

The new near real-time integration with QRadar SIEM requires the following:
 * zSecure Audit, zSecure Adapters for QRadar SIEM, or one of the zSecure Administration, Auditing, and Compliance solutions that includes zSecure Audit as a component
 * QRadar SIEM, including (some of) the Device Support Modules (DSMs) for z/OS, RACF, ACF2, Top Secret, DB2, and CICS events
 * z/OS V2R1 or newer, plus the z/OS SMF in-memory (INMEM) resource feature and SMF real-time interface provided through z/OS APAR OA49263 (September 2016)
 * Optionally IBM Common Data Provider for z Systems V1.1, plus the enhancements provided through CDP APAR OA51414 (December 2016)

Exploitation of virtual storage above the bar requires a z196 or newer hardware.

For Multi-Factor Authentication for z/OS 1.2 support note
 * RACF APAR OA50930 (December 2016) and SAF APAR OA50931 and the documentation updates provided in this technote by the RACF team for MFA V3.
 * zSecure 2.2.1 provides some initial support for this brand-new function in zSecure Admin and zSecure Audit 2.2.1
 * zSecure Command Verifier does not tolerate use of the new command keywords yet, see APAR OA51719
 * Additional updates will be provided for zSecure Admin and Audit through APAR OA51723

Migration

If you install the RACF-offline component of zSecure Admin 2.2.1 over a 2.1.1 or older release, please follow the instructions in this technote.

Note that the CARLa engine of zSecure 2.2.1 uses 64-bit addressing by default. If you run on a z196 or newer, CKRCARLA will invoke the CKR8Z196 program (instead of CKR4Z).
 Note that the CKR4Z program was first shipped with the original zSecure 2.2.0 release; it is not present in older zSecure releases. Note that the CKRCARLA 2.2.0 program will always calls CKR4Z..
 Note that the CKR8Z196 program is only enabled at the zSecure 2.2.0 level if you installed the 64-bit SSE.
 If you want to fall back to using the 31-bit engine, you can do one of the following:
 * In the ISPF UI under SETUP RUN (SE.0), second panel, option "Select program to run", choose 2 option to call CKR4Z directly
 * You can call the CKRCARLA program with the command ALLOC PROGRAM=CKR4Z on the parameter string--but for batch programs the preferred method is a direct call to PGM=CKR4Z
 * To the zSecure Alert engine (C2POLICE) and zSecure Access Monitor (C2PACMON) you can specify DEBUG CKRCARLA('ALLOC PROGRAM=CKR4Z;')
 * To the zSecure Server (CKNSERVE) you can specify OPTION CKRCARLA('ALLOC PROGRAM=CKR4Z;')
 * For the zSecure Visual server (C2RSERVE) you can change the external link so that it points to CKR4Z instead of CKRCARLA
 Note that calling CKR4Z directly might mean that you need to set up Program Access to Data Sets (PADS) or program pathing for that program.

For the near-real time integration with QRadar SIEM you need to do the following
 * SMF must be configured to use SMF log streams (as opposed to data sets). This is a prerequisite for the SMF in-memory resource feature.

* You must be running the 64-bit CARLa engine.
 * Next, you need to choose between two ways of connecting to the SMF in-memory resource feature:
 - directly from the CARLa engine to the SMF real-time interface
 - through the System Data Engine (SDE) component of the IBM Common Data Provider for z Systems (CDP)
 These options are functionally equivalent, but have different set-up requirements.
 Note that the second option is available even if you do not have the CDP product, because zSecure ships the SDE (FMID HHB011E) as a "supporting program", that is to say, you are allowed to use it for the purposes of this near real-time integration with QRadar SIEM.
 As far as the CARLa configuration (CKQSPECL) is concerned, this is just another keyword on the ALLOCATE statement for the SMF data source (INMEM=resourcename vs. CDP).
 * Note that CKQSPECL is provided in SCKRCARL. You probably want to copy it to your CKRPARM data set. The easiest way to do this might be to modify the CKRZPOST post-installation job in SCKRSAMP before you run it: locate the line with "S M=CKQSPEC" and make sure there is a line "S M=CKQSPECL" behind it.
 * CKR8Z196 can be brought up as a started task using the sample procedure CKQRADAR in SCKRPROC, which references CKQSPECL and the main CARLa script CKQLEEFL. This script is functionally equivalent to the CKQLEEF script for use with FTP and includes the same exit points, so your event selections and custom events can be carried over automatically.
 Note that the CARLa engine will periodically restart itself automatically and now also listens to operator commands (such as MODIFY,RESTART).
 * You must configure the QRadar SIEM DSMs to accept the syslog protocol. (If your DSMs have not been automatically defined to allow that, shell commands can be run to enable the selection.)

Further reading

What's new in zSecure 2.2.1

If you have any questions, please post them here or on the zSecure forum. You can also visit the zSecure community. The current zSecure for z/VM release is 1.11.2. The I<wbr></wbr>B<wbr></wbr>M<wbr></wbr> <wbr></wbr><wbr></wbr>S<wbr></wbr>e<wbr></wbr>c<wbr></wbr>u<wbr></wbr><wbr></wbr>r<wbr></wbr>i<wbr></wbr>t<wbr></wbr>y<wbr></wbr><wbr></wbr> <wbr></wbr>z<wbr></wbr>S<wbr></wbr>e<wbr></wbr><wbr></wbr>c<wbr></wbr>u<wbr></wbr>r<wbr></wbr>e<wbr></wbr><wbr></wbr> <wbr></wbr>t<wbr></wbr>o<wbr></wbr>d<wbr></wbr><wbr></wbr>a<wbr></wbr><wbr></wbr>y developerWorks article serves as a starting point to reach all the latest zSecure announcements.
 IBM Security zSecure suite 2.2.1 was announced on October 25, 2016 with a planned availability date of December 9, 2016. You can read the US announcement letter here . This release provides live SMF event streaming to IBM QRadar SIEM, enhanced... 0 0 3779 urn:lsid:ibm.com:blogs:entries-9ba6070c-9913-430e-b325-8829b6abdaa2 System z Management 2017-07-20T15:03:09-04:00 urn:lsid:ibm.com:blogs:entry-44ae0208-ab15-4f4e-8d15-ada842202a2c IBM Security zSecure support for 64-bit addressing JeroenTiggelman 27000186A5 active false JeroenTiggelman 27000186A5 active false 5e65990a-9690-42e2-93b1-c2267be7620c Comment Entries application/atom+xml;type=entry Likes true 2016-06-26T06:05:36-04:00 2016-12-09T13:11:11-05:00
The announcement letter for IBM Security zSecure suite 2.2.0 issued on October 1, 2015 contained a Statement of Direction about providing 64-bit addressing support on a future date. This support has become available on June 25, 2016 through a Service Stream Enhancement (SSE). This SSE also contains performance improvements and scoping enhancements that also apply to 31-bit addressing mode.

Background

IBM Security zSecure suite can help you protect your enterprise, detect threats, comply with policy and regulations and reduce costs. Most of the products run on the z/OS operating system.

The common query language employed by zSecure Admin, zSecure Audit, zSecure Manager for RACF z/VM, zSecure Alert, and zSecure Adapters for QRadar SIEM is called the CARLa Auditing and Reporting Language (CARLa). (This technically applies to zSecure Visual also, but as an end user you do not usually make direct use of the script language when using that product.)

Before release 2.2.0 the CARLa script language was processed by the CKRCARLA program. As of zSecure 2.2.0 the CKRCARLA program is a stub program that calls the CKR4Z program. The CKR4Z program is very similar to the former CKRCARLA program; it uses 31-bit addressing. The CKR8Z196 program is the 64-bit addressing edition of the former CKRCARLA program. CKR8Z196 originally shipped in a disabled state: if you tried to run it, it would issue message "CKR2246 12 This variant of CKRCARLA is not yet available and needs an enabling PTF".

IBM Security zSecure Audit helps review the security of the system in various ways, e.g. by formatting log records from the System Management Facilities (SMF) event log. IBM Security zSecure Adapters for QRadar SIEM send enriched SMF information to IBM Security QRadar SIEM. The Access Monitor component of zSecure Admin records access use in the system (including accesses that are not logged in SMF) in a compressed format.

The zSecure Audit Compliance Testing Framework was added in zSecure 1.13.1 (2012). A user interface was first provided in zSecure 2.1.0 (2013). The Security Technical Implementation Guide (STIG) from the United States Defense Information Systems Agency (DISA) provides a framework for ensuring that security is set up properly. IBM Security zSecure Audit helps automate compliance control points belonging to this standard as well as for the Pa<wbr></wbr>y<wbr></wbr>m<wbr></wbr>en<wbr></wbr>t<wbr></wbr> <wbr></wbr>Ca<wbr></wbr>r<wbr></wbr>d<wbr></wbr> I<wbr></wbr>n<wbr></wbr>d<wbr></wbr>us<wbr></wbr>t<wbr></wbr>r<wbr></wbr>y <wbr></wbr>D<wbr></wbr>a<wbr></wbr>ta<wbr></wbr> <wbr></wbr>S<wbr></wbr>ec<wbr></wbr>u<wbr></wbr>r<wbr></wbr>it<wbr></wbr>y<wbr></wbr> <wbr></wbr>St<wbr></wbr>a<wbr></wbr>n<wbr></wbr>d<wbr></wbr>a<wbr></wbr>r<wbr></wbr>d (PCI-DSS) from the Payment Card Industry Security Standards Council and GSD331/ISeC (a global services document with security controls documentation from IBM).

64-bit addressing was introduced to the mainframe by z/Architecture in 2000 through the z900. Later hardware (z800, z990, z890, z9, z10, z196, z114) has added progressively more 64-bit capable machine instructions.

An inherent feature of 64-bit addressing is that 8-byte addresses are required, where 31-bit addressing used 4-byte addresses. This implies that more virtual memory is required to hold the larger address variables. It also implies that more memory needs to be read (and written) to address the data. This raises some questions about the performance of a 64-bit addressing capable program vs. a 31-bit addressing program. For this reason zSecure has chosen to provide the CKR8Z196 program so that it runs on z196 and later hardware. The z196 introduced a number of (types of) machine instructions that allow better performance when using 64-bit addressing than older hardware. (Note that the name "CKR8Z196" contains the "8" for "8-byte addresses" and "Z196" to remind you that a z196 or better is required.)

Benefits

The 64-bit addressing edition of the CARLa engine allows processing larger amounts of data by allowing many data structures to reside "above the bar". For existing queries the amount of storage used "below the bar" is less. (The "bar" is the 2GB line, i.e., memory "above the bar" cannot be addressed through a 31-bit address.) Using this feature requires a z196 or later hardware.

The main functions for which this is likely to be beneficial are:

- processing large amounts of SMF data at once;

- processing very large intervals of zSecure Admin Access Monitor data at once;

- processing rule-based compliance reports (AU.R);

- processing data for many security databases and LPARs at once.

Performance optimizations have been made. The CKR8Z196 program shipped in the SSE has a performance roughly comparable to that of the original CKR4Z program. The CKR4Z program as shipped in the SSE has become faster.

Scoping enhancements have been made (in addition to the scoping enhancements that were made in the original zSecure 2.2.0 release).

Documentation has been provided in a technote.

Prerequisites

To fully benefit from these enhancements you need to run zSecure 2.2.0 on a z196 or later hardware. On older hardware you cannot use the CKR8Z196 program but you still benefit from the performance enhancements made to the CKR4Z program and the scoping improvements.

This support is provided through PTFs UA82048 and UA82057 for APARs OA50694 (CARLa-driven components) and OA50701 (ACF2 specific), resp.

Migration

This SSE is only available for zSecure 2.2.0. Behavior of the CKRCARLA program (which you likely have in your JCL etc.) is unchanged: it will always call the CKR4Z program (which uses 31-bit addressing). To enable use of the 64-bit engine in the user interface, go to option SE.0 (run options) and select the newly available choice 3 for "program to run" on the second panel. This requires z196 or later hardware. If you want to use the 64-bit addressing program CKR8Z196 in a batch job, you need to call the program directly from it at this time. (Although a design intention of the CKRCARLA program is to dynamically call CKR4Z or CRK8Z196 based on criteria such as the hardware the program is running on, it was deemed unsuitable to change this default behavior in a service stream update.) Some notes on implications of the new program structure can be found in the zSecure 2.2.0 incompatibility warnings.

You should note that the CKR4Z program is being replaced almost entirely by this SSE as well. You should furthermore note that also the CKFCOLL (zSecure Collect for z/OS), CKGRACF (a component of zSecure Admin and zSecure Visual), CKNSERVE (zSecure server), CKX (command execution utility), C2RIMENU (interactive menu), and C2RSUB (submission) programs have been replaced almost entirely, and that the C2POLICE (zSecure Alert address space), C2PACMON (zSecure Admin Access Monitor component), and C2XACTV (zSecure Exit Activator) programs have changes as well. User interface updates on the other hand are quite marginal.

Since this effectively replaces most of all engine programs related to the CARLa-driven components of zSecure for z/OS, this pulls in or supersedes most prior maintenance to zSecure 2.2.0, and future maintenance to zSecure 2.2.0 is quite likely to have this deliverable as a prerequisite. Note that this update is unrelated to zSecure CICS Toolkit and zSecure Command Verifier. (And of course it does not directly apply to zSecure Manager for RACF z/VM, which runs under z/VM.)

Some gotchas you can run into (such as z/OS APAR OA50672) and instructions for configuring zSecure Alert to run with the CKR8Z196 program can be found in the technote. At the present time, it is not possible to configure zSecure Visual (the Windows front-end for decentral administrators) to use the CKR8Z196 program.

If you are planning to migrate from an older zSecure release to zSecure 2.2.0, you are strongly encouraged to ensure this maintenance is included immediately. That way, you will also bypass some quirks in the scoping updates in the original zSecure 2.2.0 release.

Note that moving data structures above the 2GB bar provides virtual storage constraint relief below the bar. If you were planning to use the OPTIMIZE=STORAGE option first provided for zSecure 2.1.1 through APAR OA47619, you might want to check if using 64-bit addressing mode removes the need to do so.

Edit: The User interface productivity SSE provides additional 64-bit exploitation for zSecure Alert.

Edit: zSecure 2.2.1 has 64-bit exploitation enabled by default. It ships with updates to SETUP OUTPUT (SE.7) to allocate larger report files etc.

If you have any questions, please post them here or on the zSecure forum. You can also visit the zSecure community and wiki. The I<wbr></wbr>B<wbr></wbr>M<wbr></wbr> <wbr></wbr><wbr></wbr>S<wbr></wbr>e<wbr></wbr>c<wbr></wbr>u<wbr></wbr><wbr></wbr>r<wbr></wbr>i<wbr></wbr>t<wbr></wbr>y<wbr></wbr><wbr></wbr> <wbr></wbr>z<wbr></wbr>S<wbr></wbr>e<wbr></wbr><wbr></wbr>c<wbr></wbr>u<wbr></wbr>r<wbr></wbr>e<wbr></wbr><wbr></wbr> <wbr></wbr>t<wbr></wbr>o<wbr></wbr>d<wbr></wbr><wbr></wbr>a<wbr></wbr><wbr></wbr>y developerWorks article serves as a starting point to reach all the latest zSecure announcements.
 The announcement letter for IBM Security zSecure suite 2.2.0 issued on October 1, 2015 contained a Statement of Direction about providing 64-bit addressing support on a future date. This support has become available on June 25, 2016 through a... 0 0 3159 urn:lsid:ibm.com:blogs:entries-9ba6070c-9913-430e-b325-8829b6abdaa2 System z Management 2017-07-20T15:03:09-04:00 urn:lsid:ibm.com:blogs:entry-3e7d11b1-45ce-4b18-ba32-da16fdc05cda Flash Saviour Of The Universe? MartinPacker 11000094DH active false Comment Entries application/atom+xml;type=entry Likes true 2013-02-23T16:03:49-05:00 2013-02-23T16:08:17-05:00
When I first heard of Flash Express as part of the zEC12 announcement - some time before announcement - I thought of one use case above all, and one of particularly poignant resonance with some of my readers: Dump capture amelioration.

Then, in the marketing materials, I heard of others. And the discussions have grown more numerous recently. So it's time I expressed (pardon the pun) my opinion.

The two cases I hear most often are:

Down In The Dumps

Market Open

But there is a third:

Close To The Edge

These names are, of course, glib. The actual scenarios themselves are fuzzy in a good way: Customers will express their needs individually but encompassing the main theme.

So let me talk about each one.

Down In The Dumps

For many customers it's imperative that dumps - especially of major address spaces - complete quickly. Particularly the dump capture portion.

As you probably know, when an address space is dumped the system halts work while the dump's capture phase begins. The capture phase writes to dataspace, which is ideally backed by real memory. There are a number of things that can go wrong with this, in the worst case leading to tens of minutes of dump capture and perhaps hours of service recovery (possibly involving a sysplex-wide restart).

(If you've been through this you really don't need me to labour the point. If you haven't then please still take note.)

In the worst case the dump doesn't get captured. Which means diagnostics to explain the need for the dump and potentially a resolution won't be (fully) available.

Market Open

I always think it's useful to draw a timeline - whether on paper or just in your head. If you consider a 24 hour period the memory usage can be very different, say, overnight from the online day.

Overnight batch users, such as sorts, compete very effectively for real memory page frames: It's entirely possible online address spaces, such as CICS regions, can lose their pages to paging disk.

At the start of day (classically when the markets open, though that's a financial services term) online services roar into life. In fact many applications experience a spike in demand, which then settles down.

Coping with "market open" is about the time to recover pages to memory (and the time to furnish new pages where the online application needs to grow its own memory footprint).

Close To The Edge

While I see many customer systems with lots of spare memory - particularly on z196 and zEC12 machines, there are cases where memory is less plentiful.

I wouldn't advocate letting a system page as a day-to-day occurrence. Equally it's often beneficial to consider the value of using idle memory, say for bigger DB2 buffer pool.

But a fair number of systems achieve stasis without a large amount of free memory. As workloads grow, or even where there are unusually large fluctuations in usage, this happy medium can become compromised.

What They All Have In Common

Consider the following two graphs:

Memory Spike

and

Paging Space

These are timeline graphs (as I just advocated).

While this is a situation where DFSORT spikes in usage early in the morning, it could (with different names and timing) be a case where a large address space suddenly has to be dumped.

The salient features are:

Normally there's some of the 10GB of memory free, but not an enormous amount. (And you see the classical "double hump" usage profile.)

The category called "Other" is everything in the system apart from DB2 and DFSORT. So System, CICS regions, TSO, Daytime Batch etc.

DB2 usage is relatively static - which is generally true.

In the early hours of the morning DFSORT batch jobs come in and grab a large proportion of storage. Under some circumstances they can, as here, push other pages to page data sets. Particularly poor competitors include CICS regions and less-used (in the night) DB2 buffer pools.

It takes a while for DB2 and Other to recover the pages they need.

Some pages remain on page data sets all the time. This would be a mixture of two things:

Pages that aren't referenced again.

Pages that are referenced again but the page data set slots aren't freed up. (Recall that when a page is stolen from memory if it's unchanged we don't write it out -

if there's a copy in page data set slot - so there's benefit in not freeing up the slot for a paged-in page.)

As I said, this scenario is common across all three. And applying a timeline to what we naturally think of as a "point in time" picture really helps in this situation.

Flash To The Rescue?

First, it's not as if IBM Product Development hasn't already done a lot of work in managing memory and dumping better in recent releases: It certainly has.

But there's always room for improvement. And Flash Express certainly is a major part of this.

Reading a page from Flash (and indeed writing one to Flash) is considerably faster than disk. (And, though this might seem like a restatement of the previous sentence, the bandwidth is much higher than for disk.)

Of course the page transfer time isn't zero and the bandwidth isn't infinite with Flash - but it's very high. I labour this point because I don't want you to think this is just a cheaper way of buying the equivalent of real memory. Generally it is cheaper but it's not the same stuff.

All the three scenarios I've described work much better with Flash than with paging to disk. They would work much better with additional real memory than paging to disk, but the economics typically would be worse.

The "Close To The Edge" scenario is worth commenting on specifically:

Although it's possible to have DB2 buffer pools, for example, page to Flash (including 1MB page ones) this is not something you should aim to do steady state. My view is you should back virtual storage users with real memory, as a strong preference: retrieving pages from Flash will take time and CPU cycles.

In the "DFSORT steals online and DB2's pages" scenario there is a technical detail I think you need to know:

DFSORT uses the STGTEST SYSEVENT to establish how many free pages there are - so it could use them in a responsible way for sort work. (The majority of problems with DFSORT and memory management are where multiple sorts come in at once or where something else grabs the storage at the same time.) It's important to note that STGTEST SYSEVENT does not regard unused Flash Express pages as free.

So, while DFSORT might chase other address spaces into Flash, it shouldn't follow them there. I think that's significant - and that's why I checked on STGTEST SYSEVENT with z/OS Development.

I can see a lot of scope for people to get strident: "Thou Must Not Page To Flash". I actually see this as more nuanced than that. Certainly the damage in paging to Flash is much less.

So, in short, I see Flash Express as a very useful safety valve.

For further reading, take a look at zFlash Introduction Uses and Benefits.
 When I first heard of Flash Express as part of the zEC12 announcement - some time before announcement - I thought of one use case above all, and one of particularly poignant resonance with some of my readers: Dump capture amelioration. Then, in the marketing... 0 0 6139 urn:lsid:ibm.com:blogs:entries-84a1e68f-fa2b-4d83-a240-5f565e7d6248 Mainframe Performance Topics with Martin Packer 2017-07-19T02:52:29-04:00 urn:lsid:ibm.com:blogs:entry-38685cd2-a594-49f5-9085-288e5a378a12 Time To Move From zAAPs to zIIPs? MartinPacker 11000094DH active false Comment Entries application/atom+xml;type=entry Likes true 2012-09-19T06:43:48-04:00 2012-09-19T06:43:48-04:00
Prompted by Troy Coleman's article zEC12 and zIIP Processors I thought I'd write about how I see the future for zAAPs.

First, his article does a good job of covering the area. So I recommend you read it.

Troy mentions the "zAAP on zIIP" function - which allows zAAP-eligible work to run on a zIIP. It's not news and it's a good piece of function: It means you can fill zIIPs more readily, making them a better financial proposition than if zAAP-eligible work had to stay on zAAPs, segregated from zIIP-eligible work. The value of this will depend on which of the following three categories your systems are in:

Mostly zIIP-eligible work.

Mostly zAAP-eligible work.

A mixture of both.

I see customers in all three categories. Strictly speaking I should say "systems in all three categories" as this is an LPAR-by-LPAR and machine-by-machine thing. So, to evaluate its applicability you need to use the usual methods (and apply some of the thinking in zIIP / zAAP Capacity Planning).
Troy also quotes the IBM Statement of Direction on the planned relaxation on the use of zAAP-on-zIIP:

IBM plans to provide a PTF for APAR OA38829 on z/OS V1.12 and V1.13 in September 2012 to remove the restriction that prevents zAAP-eligible workloads from running on zIIP processors when a zAAP is installed on the server.

This gives new configuration choices - which ought to be helpful to a number of customers: I can imagine migrations on an LPAR-by-LPAR basis to zAAP-on-zIIP.

He also mentions the Statement of Direction that:
IBM zEnterprise EC12 is planned to be the last high-end System z server to offer support for zAAP specialty engine processors.

So there's an obvious direction of travel here. All these things taken together suggest the zEC12 timeframe would be a good one to migrate to zIIPs in. Actually I see nothing here that suggests you couldn't do it on a z196 : Each customer will have their own choreography.

One final thing to watch out for: The configuration rules haven't changed in that it's still only one zIIP per GCP (General Purpose CP) and only one zAAP per GCP. There will be relatively few customers who need more zIIP engines on a machine than GCP engines (even with zAAP-eligible workload running on the zIIPs) but I'm sure they do exist. In those cases careful evaluation (particularly of the financial kind) will be the order of the day. And that's where Capacity Planning, mentioned in my referenced post, comes in.
 Prompted by Troy Coleman's article zEC12 and zIIP Processors I thought I'd write about how I see the future for zAAPs. First, his article does a good job of covering the area. So I recommend you read it. Troy mentions the "zAAP on zIIP" function - which allows... 0 1 6998 urn:lsid:ibm.com:blogs:entries-84a1e68f-fa2b-4d83-a240-5f565e7d6248 Mainframe Performance Topics with Martin Packer 2017-07-19T02:52:29-04:00 urn:lsid:ibm.com:blogs:entry-af6b8ce6-c093-4dab-bd9a-56cc2ffc8538 mainframeitalia.com vidierre 060000JW42 active false 5e65990a-9690-42e2-93b1-c2267be7620c Comment Entries application/atom+xml;type=entry Likes true 2012-05-21T09:54:36-04:00 2012-05-21T09:54:36-04:00  mainframeitalia.com is a web site addressing news related to the System z ecosystem. Its goal is to provide information, suggestions and experiences about mainframe topics.

Why a mainframe site in Italian language? It's not certainly because the professionals working in this environment does not know English. Rather, because the sources on which are many interesting things to find, all in English and often do not focused only on mainframe computers,and this is combined with the fact that the time to look for exciting news is never enough. So we think it's appropriate to provide such initiative in order to facilitate the collection and sharing of what we read on the web and our experiences.

It is a non-profit initiative, which was created without any funding and through voluntary contributions of the authors
and those who intend to participate with articles and reports.
Anyone can participate thorough rating, comments, "I like" and so on. But you can also write articles and your experiences in more details; to do
this look at the page "Contatti" fill the form and candidate yourself!

Obviously is a web site in Italian language, but not only for Italians: if anyone is interested about mainframe and want exercise its Italian knowledge is welcome ;)

To follow us you can go to http://mainframeitalia.com, using the Follow button at the bottom right, you can enter your email and be noticed directly, or became follower on Twitter of @mainframeitalia.

 mainframeitalia.com is a web site addressing news related to the System z ecosystem. Its goal is to provide information, suggestions and experiences about mainframe topics. Why a mainframe site in Italian language? It's not certainly because the... 0 0 4902 urn:lsid:ibm.com:blogs:entries-9ba6070c-9913-430e-b325-8829b6abdaa2 System z Management 2017-07-20T15:03:09-04:00 urn:lsid:ibm.com:blogs:entry-4fd04c9f-fcca-41d9-9180-c9b93c63f7c4 Einladung zum 26. z/VM & z/VSE IT-Leiter Kolloquium am 17./18. November im Schloss Pommersfelden dwmigration2 310001RFE6 active false dwmigration2 310001RFE6 active false 38b9aea1-bdad-4dde-9984-fd18f65bb557 Comment Entries application/atom+xml;type=entry Likes true 2011-09-29T09:35:18-04:00 2011-09-29T09:44:46-04:00 <title></title>

Wir laden Sie sehr herzlich zu unserer langj�hrigen z/VM & z/VSE-Veranstaltung in einer

 neuen atemberaubenden Umgebung ein:

26. z/VM & z/VSE IT-Leiter Kolloquium

am 17. und 18. November 2011

imSchloss Pommersfelden

Auch dieses Mal haben wir f�r Sie zusammen mit den IBM Business Partnern

 becom-A Computacenter Division und SUSE Linux GmbH ein informatives und

 interessantes Programm zusammengestellt. Sie erfahren u. a.

�Neuigkeiten rund um IBM System z, z/VM, z/VSE, Linux on System z und Storage

�aufschlussreiche Kundenvortr�ge �ber den Einsatz von z/VSE und Linux auf System z

�wie Sie Ihre IT mit IBM zEnterprise, z/VSE und Linux optimieren k�nnen

Wie gewohnt werden Sie ausreichend Gelegenheit haben, sich mit IT-Entscheidern

 anderer Unternehmen auszutauschen.

Alle Details zur Agenda, den Referenten, Informationen zum Schloss Pommersfelden sowie

 die M�glichkeit, sich f�r die Veranstaltung anzumelden, finden Sie unter:

ibm.com/events/z/vm-z/vse-kolloquium

Wir freuen uns, Sie im Schloss Pommersfelden zu begr��en.

Likes before 03/04/2016 - 0

Views before 03/04/2016 - 4189
 Wir laden Sie sehr herzlich zu unserer langj�hrigen z/VM & z/VSE-Veranstaltung in einer neuen atemberaubenden Umgebung ein: 26. z/VM & z/VSE IT-Leiter Kolloquium am 17. und 18. November 2011 im Schloss Pommersfelden Auch dieses Mal haben wir... 0 0 1011 urn:lsid:ibm.com:blogs:entries-6169e7cd-01db-447f-a14c-36236f50f5d8 Blue Blog 2016-03-15T11:54:19-04:00 urn:lsid:ibm.com:blogs:entry-0e39e4f3-d7c5-4360-9554-54ba5717f8cc Vienna Conference - A Trip Report MartinPacker 11000094DH active false Comment Entries application/atom+xml;type=entry Likes true 2011-05-09T06:25:50-04:00 2011-05-09T06:25:50-04:00 I think people know better than to ask me for a trip report to a conference I've attended. They'll get what I think is important - and their priorities are probably different. So here is that trip report anyway...

You'll probably have gathered by now I'm for a "for the journey" person than a "for the destination" one. But I won't bore you with the minor inconveniences on both ends of the trip - because I personally try to forget the (often long and tedious) journey when I get to the destination (or home again). I'd rather focus on where my travels took me.

I will admit to sampling hostelries - with good friends. I also was very pleased to be in the company of friends - both old and new. Personally, I think the social aspect of a conference is almost as important as the sessions. And, of course, some really useful conversations were had - with IBMers, business partners, vendors and customers. I can't really summarise these - for the usual obvious reasons.

My four sessions mainly went well. The topics are summarised here. But here are my perceptions:

"Parallel Sysplex Performance Topics" went well, I think. Mainly because I talked about the subset of items I really wanted to talk about. Most notably "Structure Execution Time" and "Structure Duplexing Performance". (And I had a very good question on how the non-CPU element of request time relates to distance and technology.)

I think "Much Ado About CPU" has become disorganised. It needs refocusing. Particularly as I expect the CPU picture to continue to evolve over time. And so this one has to survive in some form.

"Memory Matters" was done while too tired. I also think it contains too much baggage from DB2 Version 8 (even though many customers are still on 8). I also think the "Coupling Facility Memory" section doesn't really add much.

"DB2 Data Sharing Performance For Beginners" turns out not to be a "for beginners" presentation, really. If I'm introspective about it I thought when I wrote it it would help explain the major themes but I couldn't pretend be as knowledgeable as the true greats of Data Sharing. For example, those that write "DB2 Performance Topics" Redbooks. So I should skip the "for beginners" part of the title and rework it to make it as good a presentation as I can for those who already have some knowledge. The stuff needs saying but I need to say it better.

But, I think in the above I'm being harsh on myself. I got good evaluations on all four. Maybe the audience is very kind.

I took notes using the Writepad handwriting application on iPad (into Evernote so I can read them and edit them everywhere). Writepad does a very good job but I still wish I'd brought the keyboard along: I found the mechanics of taking notes diminished my ability to listen. I'd pull out the following presentations as ones I got a lot out of. (Others will have their own favourites.)

Susann Thomas (a team-mate from the 2009 Batch Modernisation residency) did a very nice job on introducing XML for System z. So much so I'm convinced I need to understand the XML story better. (You may have seen on Twitter my attempts to do stuff.)

Harald Bender's XML and RMF presentation makes me think a practical example of XML to play with is that produced by RMF.

Marna Walle did a nice job of her z/OS R.13 Preview presentation. (Which reminds me I must write on in-stream SYSIN in a PROC soon.)

George Ng (who apparently reads this blog  ) presented on Infiniband Coupling Facility links. I note all RMF knows about Infiniband links is the channel path acronym "CIB". It can't distinguish between e.g 1x SDR and 12x DDR, for example. You can imagine I'd "have views" on that sort of thing.

Christian Daser explained rather well, I thought, the tricky DB2 V10 Bitemporal support, as well as a few other pieces of DB2 Application componentry in 10.

Peter Enrico will certainly have opened some eyes to the value of SMF 113 CPU Measurement Facility instrumentation. I've been familiar with this for a long time - certainly from before we announced it. I would write about it if I didn't feel Peter (and John Burg) hadn't already done so as well as I could have - if not better.

Mike Buzzetti gave a very good introduction to Cloud on System z, particularly about TSAM for provisioning.

I've tried to run with Jeff Berger's foils before now. I'm so glad I don't have to anymore: He does so much better a job of it than I do.  The topic I saw him present this time was on DB2 V10 Performance. I'm eagerly awaiting the Redbook, of course.

And last but not least Bob Rogers' "What You Do When You're a z196 CPU". I'm very glad he keeps updating it for each generation of processors. It's one where you really do need to know what happened before so I'm pleased he's kept in z9 and z10 stuff.

Of course I don't know whether you have access to the proceedings. If you do I recommend you pull down some of the above sets of slides. If not maybe you'll see them at some other conference or user group.

After a week of this I'll admit to coming home very tired. (In fact I think everyone felt that way by Thursday morning.) But it was a great week for me. And thanks to everyone who made it so good for me.

And if you didn't get to Vienna I hope you do get to some System z conferences: They've a very good use of money and time.
 I think people know better than to ask me for a trip report to a conference I've attended. They'll get what I think is important - and their priorities are probably different. So here is that trip report anyway... You'll probably have gathered by now I'm for... 1 0 5480 urn:lsid:ibm.com:blogs:entries-84a1e68f-fa2b-4d83-a240-5f565e7d6248 Mainframe Performance Topics with Martin Packer 2017-07-19T02:52:29-04:00 urn:lsid:ibm.com:blogs:entry-ed96cc95-d719-44ea-bc31-a9eabf185718 zSecurity 2010 - zEnterprise Networking update alan.harrison 270002QUNN active false Comment Entries Likes true 2010-09-29T03:39:24-04:00 2010-09-29T03:44:46-04:00 Yesterday was zEnterprise update day. Thanks to Gwen Dente for a fascinating session on zEnterprise network security. In a nutshell, in a zEnterprise with z196 (the mainframe core) and Power or Intel blades in a zEnterprise BladeCenter Extension (zBX) all interconnections are achieved via internal high speed networks. "Ensembles" (collections of z LPARs, Linux on z virtual servers, POWER and z-blade servers) are linked by VLANs with Virtual Network Interface Cards (VNICs) managed by the zEnterprise Unified Resource Manager (zManager).

This means

No sniffing, as there are no cables, switches and routers

No spoofing, as the VNICs and Virtual Media Address Controls (VMACs) are configured from zManager on the Hardware Management Console (HMC) only, invisible to the outside world and new MACs will not be recognised unless you can login to zManager on the HMC.

Vastly lower network latency (down from,say, 80 microseconds to 10)

Impressive stuff. If we're concerned about network security, zEnterprise looks to have addressed some serious concerns pretty impressively.

In other news, I've a new post on my InfoSec general blog, PracticallySecure, linking to some controversial views on compliance you might enjoy.
 Yesterday was zEnterprise update day. Thanks to Gwen Dente for a fascinating session on zEnterprise network security. In a nutshell, in a zEnterprise with z196 (the mainframe core) and Power or Intel blades in a zEnterprise BladeCenter Extension (zBX) all... 0 0 2960 urn:lsid:ibm.com:blogs:entries-1a151788-57a1-44ec-8b4a-dcb69a6079e4 zSecurity 2014-05-06T05:38:11-04:00 urn:lsid:ibm.com:blogs:entry-e7e586b9-20f3-4301-8b0a-5d8568427830 #IBMtechU IBM Storage University in Washington DC - Day 5 the New zEnterprise TonyPearson 120000HQFF active false Comment Entries Likes true 2010-08-10T14:01:37-04:00 2010-08-24T13:06:51-04:00
 Wrapping up my coverage of the annual [2010 System Storage Technical University], I attended what might be perhaps the best session of the conference. Jim Nolting, IBM Semiconductor Manufacturing Engineer, presented the new IBM zEnterprise mainframe, "A New Dimension in Computing", under the Federal track.

 The zEnterprises debunks the "one processor fits all" myth. For some I/O-intensive workloads, the mainframe continues to be the most cost-effective platform. However, there are other workloads where a memory-rich Intel or AMD x86 instance might be the best fit, and yet other workloads where the high number of parallel threads of reduced instruction set computing [RISC] such as IBM's POWER7 processor is more cost-effective. The IBM zEnterprise combines all three processor types into a single system, so that you can now run each workload on the processor that is optimized for that workload.

IBM zEnterprise z196 Central Processing Complex (CPC)

 Let's start with the new mainframe z196 central processing complex (CPC). Many thought this would be called the z11, but that didn't happen. Basically, the z196 machine has a maximum 96 cores versus z10's 64 core maximum, and each core runs 5.2GHz instead of z10's cores running at 4.7GHz. It is available in air-cooled and water-cooled models. The primary operating system that runs on this is called "z/OS", which when used with its integrated UNIX System Services subsystem, is fully UNIX-certified. The z196 server can also run z/VM, z/VSE, z/TPF and Linux on z, which is just Linux recompiled for the z/Architecture chip set. In my June 2008 post [Yes, Jon, there is a mainframe that can help replace 1500 servers], I mentioned the z10 mainframe had a top speed of nearly 30,000 MIPS (Million Instructions per Second). The new z196 machine can do 50,000 MIPS, a 60 percent increase!

 (Update: Back in 2007, IBM and Sun mutually supported [OpenSolaris on an IBM System z mainframe]. Unfortunately, after Oracle acquired Sun, the OpenSolaris Governing Board has [grown uneasy over Oracle's silence] about the future of OpenSolaris on any platform. The OpenSolaris [download site] identifies 2009.06 as the latest release, but only for x86 and SPARC chip sets. Apparently, the 2010.03 release expected five months ago in March has slipped. Now it looks official that [OpenSolaris is Dead].)

 The z196 runs a hypervisor called PR/SM that allows the box to be divided into dozens of logical partitions (LPAR), and the z/VM operating system can also act as a hypervisor running hundreds or thousands of guest OS images. Each core can be assigned a specialty engine "personality": GP for general processor, IFL for z/VM and Linux, zAAP for Java and XML processing, and zIIP for database, communications and remote disk mirroring. Like the z9 and z10, the z196 can attach to external disk and tape storage via ESCON, FICON or FCP protocols, and through NFS via 1GbE and 10GbE Ethernet.

IBM zEnterprise BladeCenter Extension (zBX)

 There is a new frame called the zBX that basically holds two IBM BladeCenter chassis, each capable of 14 blades, so total of 28 blades per zBX frame. For now, only select blade servers are supported inside, but IBM plans to expand this to include more as testing continues. The POWER-based blades can run native AIX, IBM's other UNIX operating system, and the x86-based blades can run Linux-x86 workloads, for example. Each of these blade servers can run a single OS natively, or run a hypervisor to have multiple guest OS images. IBM plans to look into running other POWER and x86-based operating systems in the future.

 If you are already familiar with IBM's BladeCenter, then you can skip this paragraph. Basically, you have a chassis that holds 14 blades connected to a "mid-plane". On the back of the chassis, you have hot-swappable modules that snap into the other side of the mid-plane. There are modules for FCP, FCoE and Ethernet connectivity, which allows blades to talk to each other, as well as external storage. BladeCenter Management modules serve as both the service processor as well as the keyboard, video and mouse Local Console Manager (LCM). All of the IBM storage options available to IBM BladeCenter apply to zBX as well.

 Besides general purpose blades, IBM will offer "accelerator" blades that will offload work from the z196. For example, let's say an OLAP-style query is issued via SQL to DB2 on z/OS. In the process of parsing the complicated query, it creates a Materialized Query Table (MQT) to temporarily hold some data. This MQT contains just the columnar data required, which can then be transferred to a set of blade servers known as the Smart Analytics Optimizer (SAO), then processes the request and sends the results back. The Smart Analytics Optimizer comes in various sizes, from small (7 blades) to extra large (56 blades, 28 in each of two zBX frames). A 14-blade configuration can hold about 1TB of compressed DB2 data in memory for processing.

IBM zEnterprise Unified Resource Manager

 You can have up to eight z196 machines and up to four zBX frames connected together into a monstrously large system. There are two internal networks. The Inter-ensemble data network (IEDN) is a 10GbE that connects all the OS images together, and can be further subdivided into separate virtual LANs (VLAN). The Inter-node management network (INMN) is a 1000 Mbps Base-T Ethernet that connects all the host servers together to be managed under a single pane of glass known as the Unified Resource Manager. It is based on IBM Systems Director.

 By integrating service management, the Unified Resource Manager can handle Operations, Energy Management, Hypervisor Management, Virtual Server Lifecycle Management, Platform Performance Management, and Network Management, all from one place.

IBM Rational Developer for System z Unit Test (RDz)

 But what about developers and testers, such as those Independent Software Vendors (ISV) that produce mainframe software. How can IBM make their lives easier?

 Phil Smith on z/Journal provides a history of [IBM Mainframe Emulation]. Back in 2007, three emulation options were in use in various shops:

Open Mainframe, from Platform Solutions, Inc. (PSI)

FLEX-ES, from Fundamental Software, Inc.

Hercules, which is an open source package

 None of these are viable options today. Nobody wanted to pay IBM for its Intellectual Property on the z/Architecture or license the use of the z/OS operating system. To fill the void, IBM put out an officially-supported emulation environment called IBM System z Professional Development Tool (zPDT) available to IBM employees, IBM Business Partners and ISVs that register through IBM Partnerworld. To help out developers and testers who work at clients that run mainframes, IBM now offers IBM Rational Developer for System z Unit Test, which is a modified version of zPDT that can run on a x86-based laptop or shared IBM System x server. Based on the open source [Eclipse IDE], the RDz emulates GP, IFL, zAAP and zIIP engines on a Linux-x86 base. A four-core x86 server can emulate a 3-engine mainframe.

 With RDz, a developer can write code, compile and unit test all without consuming any mainframe MIPS. The interface is similar to Rational Application Developer (RAD), and so similar skills, tools and interfaces used to write Java, C/C++ and Fortran code can also be used for JCL, CICS, IMS, COBOL and PL/I on the mainframe. An IBM study ["Benchmarking IDE Efficiency"] found that developers using RDz were 30 percent more productive than using native z/OS ISPF. (I mention the use of RAD in my post [Three Things to do on the IBM Cloud]).

 What does this all mean for the IT industry? First, the zEnterprise is perfectly positioned for [three-tier architecture] applications. A typical example could be a client-facing web-server on x86, talking to business logic running on POWER7, which in turn talks to database on z/OS in the z196 mainframe. Second, the zEnterprise is well-positioned for government agencies looking to modernize their operations and significantly reduce costs, corporations looking to consolidate data centers, and service providers looking to deploy public cloud offerings. Third, IBM storage is a great fit for the zEnterprise, with the IBM DS8000 series, XIV, SONAS and Information Archive accessible from both z196 and zBX servers.

 To learn more, see the [12-page brochure] or review the collection of [IBM Redbooks]. Check out the [IBM Conferences schedule] for an event near you. Next year, the IBM Storage University will be held July 18-22, 2011 in Orlando, Flordia.

technorati tags: IBM, Technical University, zEnterprise, x86, POWER7, RISC, z/OS, Linux, AIX, OpenSolaris, Oracle, FICON, NFS, z196, zBX, DB2, SAO, IEDN, INMN, RDz, ISV, Eclipse, Cloud Computing
 Wrapping up my coverage of the annual [ 2010 System Storage Technical University ], I attended what might be perhaps the best session of the conference. Jim Nolting, IBM Semiconductor Manufacturing Engineer, presented the new IBM zEnterprise mainframe,... 0 6 17090 urn:lsid:ibm.com:blogs:entries-eff9becc-b1a3-4cb8-bfb2-619b2a0bfc2e Inside System Storage -- by Tony Pearson 2017-07-17T23:08:24-04:00


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