CHKDUPLIBS

CHKDUPLIBS command

This command can be used to identify library conflicts between SYSBAS and IASPs.

Libraries of the same name cannot exist in both SYSBAS and an IASP.  If a conflict does exist, the IASP will not be able to complete vary-on processing until the conflict is resolved.

This should be executed during the implementation of the environment, and at incremental times thereafter, on all nodes.

Parameters

IASP - Name of the IASP

IASP is available

When the IASP is Available (e.g. primary PowerHA cluster node), there are no current library conflicts, but the command will store a current list of IASP libraries in the cluster device domain data.

IASP is not available

This is typically run on a PowerHA backup, replicate or flashcopy node, where the IASP is not available.

The command will pull the information stored in the device domain data and compare those libraries with a list of libraries in SYSBAS on that node and report any conflicts in the job log of the user who ran the CHKDUPLIBS.
When the IASP cannot complete the vary-on process due to a duplicate library name conflict, the IASP remains in an "Active" status until the conflict is corrected.
At V7R1, a message CPDB8EB (Library &1 exists in *SYSBAS and ASP device &2) is posted to QSYSOPR, allowing the user to fix the problem and then reply to the message to continue/complete the vary-on process.
At any release with SmartAssist, the CHKDUPLIBS command may be run, and a list of conflicting libraries (libraries in both *SYSBAS and IASP) will be retrieved and provided to the user.