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and issues a console message. If the failure has already been detected by some
other (earlier) request, CICS has already started to close the SMSVSAM control
ACB when the backout request fails.
The backout is normally retried automatically when the SMSVSAM server
becomes available. (See “Dynamic RLS restart” on page 37.) There is no need
to take the data set offline.
SMSVSAM server recycle during backout
This error can occur only for VSAM data sets opened in RLS access mode.
This is an extremely unlikely cause of a backout failure. CICS issues message
DFHFC4701 with failure code X'C2'. Retry the backout manually: there is no
need to take the data set offline.
Coupling facility cache structure failure
This error can occur only for VSAM data sets opened in RLS access mode. The
cache structure to which the data set is bound has failed, and VSAM has been
unable to rebuild the cache, or to re-bind the data set to an alternative cache.
The backout is retried automatically when a cache becomes available again.
(See “Cache failure support” on page 88.) There is no need to take the data set
offline.
DFSMSdss non-BWO backup in progress
This error can occur only for VSAM data sets opened in RLS access mode.
DFSMSdss makes use of the VSAM quiesce protocols when taking non-BWO
backups of data sets that are open in RLS mode. While a non-BWO backup is
in progress, the data set does not need to be closed, but updates to the data set
are not allowed. This error means that the backout request was rejected
because it was issued while a non-BWO backup was in progress.
The backout is retried automatically when the non-BWO backup completes.
Data set full
The data set ran out of storage during backout processing.
Take the data set offline to reallocate it with more space. (See Chapter 16,
“Moving recoverable data sets that have retained locks,” on page 183 for
information about preserving retained locks in this situation.) You can then
retry the backout manually, using the CEMT, or EXEC CICS, SET DSNAME(...)
RETRY command.
Non-unique alternate index full
Take the data set offline to rebuild the data set with a larger record size for the
alternate index. (See Chapter 16, “Moving recoverable data sets that have
retained locks,” on page 183 for information about preserving retained locks in
this situation.) You can then retry the backout manually, using the CEMT, or
EXEC CICS, SET DSNAME(...) RETRY command.
Deadlock detected
This error can occur only for VSAM data sets opened in non-RLS access mode.
This is a transient condition, and a manual retry should enable backout to
complete successfully. There is no need to take the data set offline.
Duplicate key error
The backout involved adding a duplicate key value to a unique alternate
index. This error can occur only for VSAM data sets opened in non-RLS access
mode.
82 CICS TS for z/OS 4.1: Recovery and Restart Guide