Prior to the fix of APAR OY67724, DFSMSdss sometimes (when using the CONCURRENT and VALIDATE options) created dumps with empty track records for imbedded sequence set tracks and with zero in the total record count dumped for the data set. The sequence set records are not necessary when restoring data sets dumped with VALIDATE. Without patch byte X'1A' on the following messages are generated:

• ADR364W and ADR417W ( because of the empty tracks)
• ADR789W (because of the missing record count)

and the restore fails.

If message ADR789W, or message ADR364W and message ADR417W, or all three messages are received during a logical restore of a KSDS or VRRDS from a dump created while using CONCURRENT and VALIDATE either by keyword or by default, you can retrieve your data sets by setting the flag at offset X'1A' in ADRPATCH and rerunning the restore job. The settings are listed below:

X'00'

DFSMSdss functions normally. It fails to restore data sets that have errors in the dump.

Any setting other than X'00'

During a logical RESTORE of a KSDS or VRRDS, if DFSMSdss detects an empty record in the dump or a missing count of the total number of records dumped for the data set, or both, it restores all of the data for the data set in the dump and keeps the resulting data set. You still get message ADR789W with a valid output record count. You can compare this valid output record count to the record count from message ADR788I from the dump job to ensure DFSMSdss has retrieved all the data.

To set the flag to on dynamically, use the SET PATCH command. To set the flag to on permanently, modify the sample JCL (see Sample JCL) as follows:

//SYSIN DD *
   NAME ADRDSSU ADRPATCH
   VER   1A        00
   REP   1A        FF