TMF Reference Manual (G06.24+)

TMFCOM Commands
HP NonStop TMF Reference Manual—522418-002
3-70
ALTER CATALOG
protection window for your files. Because of these advantages, ROUNDROBIN
ON is the generally recommended setting for this option.
To display the complete list of tapes in the TMF catalog, use the INFO TAPEMEDIA
command.
For complete information about the TMF catalog and its contents, see the TMF
Operations and Recovery Guide.
Examples
The INFO CATALOG command displays the current catalog process attribute settings:
TMF 41> INFO CATALOG
Catalog configuration:
retaindepth 2, released on, roundrobin off
The ALTER CATALOG command changes the RETAINDEPTH setting from 2 to 4:
TMF 43> ALTER CATALOG, RETAINDEPTH 4
Now, for each online dump, the TMF catalog retains four generations.
The next INFO CATALOG command displays the new catalog process attribute
settings:
TMF 43> INFO CATALOG
Catalog configuration:
retaindepth 4, released off, roundrobin off
The following command selects round-robin tape searching:
TMF 44> ALTER CATALOG, ROUNDROBIN ON
The next command disables round-robin, specifying the standard method of tape
searching:
TMF 45> ALTER CATALOG, ROUNDROBIN OFF
Note. ROUNDROBIN does not support the ability to divide the TMF tapes into multiple pools.
In any TMF configuration, there is only one pool of tapes from which TMF can select.