Keeping dump data sets available

z/OS® console and IMS master terminal operators must keep the system dump data sets available to avoid losing dumps of the IMS subsystem. z/OS operators should transfer and process IMS-produced SDUMPs using the IEBGENER program according to your installation procedures.

If you produce IMS dumps using SYSMDUMP DD statements, the MTO should transfer and process the dump data sets according to your installation procedures.

The z/OS operators should be aware of the following IMS messages that relate to the offline dump process:

DFS3906I  DFSDUMP FAILED BECAUSE ALL SYSTEM DUMP DATA SETS ARE FULL
DFS3906A  REPLY "S" TO SKIP, OR "U" TO RETRY AFTER CLEARING
          A DUMP DATASET.

In this case, if a dump is required, reply U after clearing one or more dump data sets. If a dump is not required, reply S.

DFS3907I  DFSSUMP FAILED BECAUSE A DUMP IS IN PROGRESS
DFS3907A  REPLY "S" TO SKIP, OR "U" TO RETRY AFTER THE CURRENT
          DUMP COMPLETES.

In this case, if the dump is required, reply U after you receive the following message:

IEA911E  COMPLETE/PARTIAL DUMP ON SYS1.DUMPxx.

If a dump is not required, reply S.

IEA793A  NO DUMP data sets AVAILABLE FOR DUMP=nnn BY JOB (imsproc).
USE THE DUMPPDS COMMAND OR REPLAY D TO DELELTE THE DUMP

In this case, the dump is written to the dump data set after clearing one or more dump data sets. If a dump is not required, reply D.