Rejecting volumes on specific systems in a system complex

In a system complex where all systems share the RACF data set, the RACF profile provides the same protection for all systems. If you want to prevent a volume from being used on one system, you must prevent its use on all systems. However, you can prevent volume usage on individual systems by using the DFSMSrmm REJECT command in the EDGRMMxx parmlib member. You can reject volumes that are defined to DFSMSrmm based on your chosen pool prefix using the REJECT command in parmlib. See Implementing PRTITION and OPENRULE parmlib commands for additional information on the PRTITION and OPENRULE commands.

To protect several volumes across all systems in the complex, you can use generic RACF profiles. Example: Create a profile that prevents any tape starting with a volume serial number prefix AB from being used on all systems in a system complex.

RDEFINE TAPEVOL AB* UACC(NONE)

To prevent a pool of volumes from being used on one system in a multisystem complex, do not define generic RACF TAPEVOL profiles. Use the DFSMSrmm REJECT parmlib option as shown in Figure 1.

Figure 1. Using the REJECT parmlib option

REJECT ANYUSE(AB*)

Protect volumes by using a combination of generic TAPEVOL profiles that you create, the discrete TAPEVOL profiles that DFSMSrmm creates, and the DFSMSrmm REJECT commands that you define.