TMF Management Programming Manual (G06.24+)

Commands and Responses
HP NonStop TMF Management Programming Manual—522420-002
5-42
ALTER CATALOG
same set of files, the first dump would constitute the first generation, the
second dump would be the second generation, and so forth.
The range of values for this field is from 1 through 99; the value of ZTMF-VAL-
RESETWORD is 3.
When the number of generations specified by ZRETAINDEPTH is reached for
all the files in an online dump, the status of the tape volume is changed to
SCRATCH if ZRELEASED is ZTMF-VAL-FALSE, or to RELEASED if
ZRELEASED is ZTMF-VAL-TRUE.
Increasing the value for ZRETAINDEPTH causes the number of tape volumes
required by TMF to increase, because more online dump generations are
retained in the TMF catalog. In addition, more audit dumps are retained
because they are needed for use with the online dump generations during file
recovery.
ZRELEASED
specifies the status of an online or audit dump tape volume after all the dumps
on it have been marked for deletion. The following values are valid:
ZTMF-VAL-TRUE
The status of a tape volume is changed to RELEASED when all the dumps
on it have been marked for deletion. This status indicates that the tape is
not available for reuse in dumping or for file recovery.
ZTMF-VAL-FALSE or ZTMF-VAL-RESETBOOLEAN
The status of a tape volume is changed to SCRATCH when all the dumps
on it have been marked for deletion. This status indicates that the tape can
be reused for dumping and that its contents are no longer available for file
recovery.
Usage Guidelines
Only super-group users can issue this command. TMF must be stopped.
For more information about the ALTER CATALOG command, see the TMF Reference
Manual.