Explanation
ENDKEY is an optional parameter that you specify to control on
which BCDS record the processing is completed during command execution.
The following is a required parameter of the ENDKEY parameter:
- highkey
- Provides an ending point for processing in the BCDS. The value
of highkey can be up to 44 alphanumeric characters that identify
the data set for which you want the deletion of backup versions to
end. Numbers are higher in the range (they follow Z) than letters.
The value specified cannot end in a period. If fewer than 44 characters
are entered, the value specified is appended with X'FF' to
make 44 characters.
Defaults
If the ENDKEY subparameter is not specified, the planned end key
is different, depending upon whether you specify RESUME. If the RESUME
parameter is specified without ENDKEY, processing continues until
the last specified planned end key, saved from the last EXPIREBV command
issued for this host. If RESUME is specified without ENDKEY and the
most recent EXPIREBV command processed in this host did not end early,
processing continues to the end of the BCDS. If neither RESUME nor
ENDKEY is specified, processing continues to the end of the BCDS.
Usage notes: - When processing is started for the EXPIREBV command, the planned
ending key is saved.
- If the value of highkey is equal to the value of lowkey,
DFSMShsm attempts to process only the data set (MCB) records with
those initial characters. If the value of highkey is less
than the value of lowkey, DFSMShsm fails the command with
an error message.