F Library Manager volume  categories This appendix describes Library Manager volume categories and the platforms that use them.  The IBM TS7700 does not use a Library Manager in the IBM 3494-style. Table F-1 lists all the  default Library Manager volume categories, platforms used, and definitions. These categories  can be modified to address the operational needs of the system environment.  In Release 3.2 of the TS7700, all categories that are defined as scratch inherit the Fast  Ready attribute. There is no longer a need to use the Management Interface (MI) to set the  Fast Ready attribute to scratch categories. However, the MI is still needed to indicate which  categories are scratch. Remember:  IBM z/OS users can define any category from  0x0001  -  0xEFFF  ( 0x0000  and  0xFFxx  cannot be used) with the  DEVSUPxx  member  SYS1.PARMLIB .  IEASYSxx  must point to  the appropriate member. If you use the library with other operating systems, or with  multiple z/OS sysplexes in a partitioned environment, review your category usage to avoid  potential conflicts. Table F-1 Library Manager volume categories Category  (in hex) Used by DFSMSrmm Definition 0000 Null category Null category This pseudo-category is used in certain library  commands to specify that the category that is already  associated with the volume is to be used by default,  or that no category is specified. Use of the null  category does not affect the volume’s order within the  category to which it is assigned. No volumes are associated with this category. 0001 DFSMS CST Indicates scratch MEDIA1. MEDIA1 is a  standard-capacity cartridge system tape. 0002 DFSMS ECCST Indicates scratch MEDIA2. MEDIA2 is an  enhanced-capacity cartridge system tape. 877 ' Copyright IBM Corp. 2 020. All rights reserved.