TMF Operations and Recovery Guide (G06.24+)

The TMF Catalog
HP NonStop TMF Operations and Recovery Guide—522417-002
6-11
Changing Dump Locations
then you can retry the DELETE DUMPS command when the problem has been
corrected.
There are many reasons why you might not be able to purge a disk file: the
disk’s file directory could contain a damaged sector, for example, or another
process might have the file open.
As long as other valid ASSIGNED dumps exist on a medium, that medium retains its
ASSIGNED status. To display the status of the dumps on an ASSIGNED medium,
issue the INFO DUMPS command with the DETAIL option; this command display
shows the dump status field.
The following command shows the use of the ! attribute for deleting all dumps from
serial number 100, regardless of whether or not its files can be purged:
TMF 43>DELETE DUMPS *.*.* !, SERIAL 100
You must be a member of the super user group to use the DELETE DUMPS
command.
Changing Dump Locations
If you move online disk dumps and audit disk dumps from one volume to another,
modify the TMF catalog to reflect the new location. Use the RELOCATE DISKDUMPS
command to specify which dumps were moved, their old locations, and their new
locations. The following command changes the entries for all disk dumps that were
located on $VOL1 but now reside on $DATA.
TMF 49> RELOCATE DISKDUMPS *,OLDDMLOC \PRI.$VOL1,NEWDMLOC &
>>>\PRI.$DATA
For more information on using the RELOCATE DISKDUMPS command, refer to the
TMF Reference Manual.
Maintaining Tape Media
The TMF catalog maintains a media database that contains entries for all tape volumes
known to TMF. Each entry contains the name and status of the tape volume. By
routinely monitoring the catalog, you can prepare for upcoming dump procedures and
have the proper tape media available in advance.
Naming Tape Volumes
To provide smooth file recovery, you must establish an orderly scheme for naming tape
volumes. If the file recovery process prompts you for a certain tape, you must be able
to find that tape easily. Each installation has its own scheme for arranging and naming
its tape library. Before you attempt to make your first tape dump, you should establish
a tape naming scheme and label a number of scratch tape volumes.
For example, you might use the format ccrnn, where the letters cc identify the
cabinet, r identifies the rack within the cabinet, and the nn identifies the slot on the