DWW0560W
A record with a zero sequence number is found when switching logs and reading backward. Record nn2 on log dddd2 precedes record nn1 on log dddd1. Processing continues.
A label record with a zero sequence number was
found, and the record before it on the log (nn1) does not
have the maximum sequence number (232-1). Record nn1
is the last record on log dddd1, and the zero record is
the first record on log dddd2. Some possible causes are:
- The sequence number was reset to zero by CICS®. If you do not have a journal archive control data set (JACD), CICS® resets the sequence number at every cold start and warm start. CICS® VR functions correctly in this situation.
- A log data set is omitted when specifying the logs and the next log started with a zero record.
- A zero sequence number occurred because the JACD is damaged or lost. CICS® VR functions correctly in this situation.
- A log was skipped during archiving, and the next log started with a record with a zero sequence number.
- A log had data other than log records.
This message is issued if command SEQCHKL RESETSEQUENCE(WARNING) is specified, or if WARNING is specified in the sequence checking secondary window.
CICS® VR continues the backout.
- Batch–If you are using a JACD, find out why the zero sequence
number occurred. If the JACD is damaged or lost, no action is required. If
a log was skipped during archiving, rerun CICS® VR after archiving the log. In other
cases, check the contents of the log to see whether all records needed for
backout are present.
If you omitted a log, archive this log and rerun CICS® VR.
Remember to restore the VSAM data sets from the backup copies before you rerun CICS® VR.
- Online–If you are using a JACD, find out why the zero sequence
number occurred. If the JACD is damaged or lost, no action is required. If
a log was skipped during archiving, rerun CICS® VR after archiving the log. In other
cases, check the contents of the log to see whether all records needed for
backout are present.
If you omitted a log, archive this log and rerun CICS® VR.
Remember to restore the VSAM data sets from the backup copies before you resubmit the recovery job.