DFSMSdss: Accommodate Catalog Search Interface default change

Description: In z/OS V1R11, DFSMSdss logical data set COPY, DUMP, and RELEASE operation used the Catalog Search Interface (CSI) by default to find cataloged data sets based on the generic filter criteria on the INCLUDE keyword when no input volumes are specified. Before z/OS V1R11, you could make use of CSI functionality on z/OS V1R10, z/OS V1R9, and z/OS V1R8 systems by installing the PTF for APAR OA25644 and patching the offset X'54' into the ADRPATCH module to X'11'.

In z/OS V1R13 (and with the PTF for APAR OA32120 installed on z/OS V1R12), DFSMSdss no longer uses the CSI for Catalog filtering during logical data set processing as the default; DFSMSdss uses generic catalog locates in this scenario.

Element or feature:

DFSMSdss.

When change was introduced:

z/OS V1R13. z/OS V1R12 with APAR OA32120 applied.

Applies to migration from:

z/OS V1R12 without the PTF for APAR OA32120 applied.

Timing:

Before the first IPL of z/OS V2R1.

Is the migration action required?

Yes, if you want to use CSI during Catalog filtering for logical data set processing.

Target system hardware requirements:

None.

Target system software requirements:

None.

Other system (coexistence or fallback) requirements:

None.

Restrictions:

None.

System impacts:

None.

Related IBM Health Checker for z/OS check:

None.

Steps to take: Follow these steps:

To use the CSI during Catalog filtering for the DFSMSdss logical data set COPY, DUMP, and RELEASE operation, the DFSMSdss patch byte at offset X'54' must be set to X'11' to enable the functionality.
If the DFSMSdss patch byte at offset X'54' is set to any value other than X'00' and X'11' to use generic catalog locates instead of CSI (as done in earlier releases), you do not need to set it because this previous method of finding cataloged data sets is now in effect by default.

Note: If you are intentionally using the CSI default by setting the DFSMSdss PATCH byte at offset X'54' to X'11', then you don't need to take any action to expect the functionality be effective. However, if you left the DFSMSdss PATCH byte at offset X'54' as X'00' and want to continue using the CSI during Logical Data Set processing, you need to set that Patch byte to X'11'.

Reference information: For more information about the DFSMSdss patch byte, see

INFO APAR II14616.
z/OS DFSMSdss Storage Administration.