Recovering $zsms catalog files, Recovering vdp catalog files – HP NonStop G-Series User Manual
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File Protection and Recovery for Virtual Disks
HP NonStop Storage Management Foundation User's Guide—523562-008
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Recovering $ZSMS Catalog Files
Recovering SMF catalog files requires special considerations and handling for each of
the different catalog types:
$ZSMS catalog files. The catalog files for $ZSMS must be recovered before any
other SMF processes can be brought up. The $ZSMS catalog consists of direct
files and can be recovered like any other direct audited file. See
.
VDP catalog files. The VDP catalog files must be recovered before any other files
that reside on the virtual disk are recovered. Because the VDP requires that a valid
catalog be available when it is brought to the UP state, VDP catalog recovery must
be attempted when the VDP is in the UP SPECIAL state. See
Pool process catalog files. Pool process catalog files must be recovered before the
process can be brought up to enable other processes to use its services. This
consideration means that if the pool processes’ catalog is logically named, the
catalog cannot be placed in a volume in the same storage pool because the virtual
disk process needs the pool process to be in the UP state in order to create files.
See
Recovering Pool Process Catalog Files
Recovering $ZSMS Catalog Files
If the $ZSMS catalog files need to be recovered, a TMFCOM RECOVER FILES
command must be issued alone or as part of a file set. If only certain files in the catalog
need to be recovered, they must be named specifically. See the following command:
TMFCOM RECOVER FILES $catvol.ZSMSCAT0.*,command-options
Because $ZSMS must be in the DOWN state or stopped during the file recovery
operation, it must be restarted and brought to an UP state after the catalog files have
been recovered. To restart $ZSMS, issue the COUP or SCF command following:
COUP START PROCESS $ZSMS
SCF START $ZSMS
The COUP START or SCF START operation brings $ZSMS to the UP state and
resolves any operations that were active at the time the catalog files became
unavailable.
Now that $ZSMS is in the UP state, the VDP catalog recovery process can begin (see
in this section).
Recovering VDP Catalog Files
The VDP must be in the UP SPECIAL state before you can recover VDP catalog files.
The $ZSMS process must be in the UP state.
VDP catalog files are logically named and self referential. The VDP catalog files must
be completely recovered before the VDP can enter the UP state, and before any other
logically named data files can be recovered.