8464axStats.fm Draft Document for Review February 7, 2020 3:15 pm PARMLIB definitions Use PARMLIB to define all the essential parameters that are needed to run the z/OS system.  Some parameters apply to this case study and definitions can be made with same values on  both hosts (TEST and PROD). All of the described parameters can be activated dynamically  on the current release of z/OS. For more information about options in PARMLIB, definitions, and commands to activate  without IPL, see the following publications: GLYPH<SM590000> z/OS MVS System Commands , SA38-0666 GLYPH<SM590000> z/OS MVS Initialization and Tuning Reference,  SA23-1380 GLYPH<SM590000> IEFSSNxx GLYPH<SM590000> SCHEDxx. These updates apply for TEST and PROD. GLYPH<SM590000> GRSRNLxx. These updates apply for TEST and PROD. – Devices are defined as AS in HCD. – Operators or automation products issue  VARY  commands.  The updates are within the following members of PARMLIB, where the suffix and the exact  name of the PARMLIB data set apply to your naming standards. It is important to make the  changes according to normal change rules. If the updates are not implemented correctly,  severe problems can occur when the next IPL is planned: These updates apply for TEST and PROD. If OAM is new to the installation, the definitions that are shown in Example I-1 are  required. *-------------------------------------------*/ /* OAM - OBJECT ACCESS METHOD - ATL Control */ /*------------------------------------------*/ SUBSYS SUBNAME(OAM1) INITRTN(CBRINIT)  Example I-1 OAM subsystem definition  If OAM is new to the installation, the definitions that are shown in Example I-2 are required  to start OAM. These definitions require you to start OAM as part of the normal IPL  sequence by using your own automation product. Example I-2 OAM definition in SCHEDxx PPT PGMNAME(CBROAM) /* OAM ADDRESS SPACE */  KEY(5) /* KEY(5) PROTECTION KEY */  NOSWAP /* NOSWAP NON SWAPPABLE */  SYST /* SYST SYSTEM TASK */  If the platform includes the prerequisites for use of Auto Switchable (AS) devices, runs in  GRS goal mode, or uses Coupling Facilities hardware, AS support can be enabled by the  values in Example I-3 on page 925. AS offers the ability to have the devices online on all  LPARS in a sysplex and reduces your need for specific products that have similar  functions. AS features the following requirements:  Tip: V 1000,AS,ON  makes the specified address available for AS support. When  followed by V 1000,ONLINE , it varies the device online. Both commands must be  entered on all hosts that need device 1000 online and auto-switchable. 924  IBM TS7700 Release 5.0 Guide