The following messages indicate a VSE/POWER spool file corruption, i.e.
the POWER queue file and data file are no longer in sync:
1QF8I nnnnnnnnn FREE DBLK GROUP(S) OF A SUBCHAIN‘ (ABOUT mmm%) LOST
1QFAA USED DBLK GROUP FOUND IN A FREE DBLK GROUP SUBCHAIN
1QFBA FREE DBLK GROUP FOUND IN RETURNED QUEUE ENTRY
1QFCA MISMATCH OF GROUP COUNT AND ACTUAL NUMBER OF DBLK GROUPS
1QFDA MISMATCH OF SUBCHAIN COUNT AND ACTUAL NUMBER OF FREE GROUPS
This may happen if e.g. a running system has been copied to new disks as a new system or when
DOSRES or SYSWK1 are accessed by more than one z/VSE system at the same time.
To avoid this, either perform a VSE/POWER cold start after such a copy or make sure that
VSE/POWER has been terminated by PEND before starting a copy.
Thanks to the VSE/POWER team for this contribution.
Have a good weekend.