HP NonStop G-Series - Manual (Page 109)

File Protection and Recovery for Virtual Disks
HP NonStop Storage Management Foundation User's Guide—523562-008
7-9
Recovering VDP Catalog Files
Starting the VDP For Recovery
To prevent the VDP from coming into the UP state and thereby attempting to resolve a
pending operation that might have been in error, you should start the VDP in the
DOWN state before the recovery operation. For D-series versions, issue the following
PUP and COUP commands:
COUP STOP PROCESS $vdp-to-recover
PUP REDEFINE VIRTDISK $vdp-to-recover, STARTDOWN TRUE
COUP START PROCESS $vdp-to-recover
For G-series versions, issue the following SCF commands:
SCF RESET $vdp-to-recover, FORCED
SCF ALTER $vdp-to-recover, STARTSTATE STOPPED
SCF START $vdp-to-recover
If the VDP is already in the UP state, you should DOWN it, then put it into the UP
SPECIAL state using these commands instead of those previous. For D-series
versions, issue the following PUP commands:
PUP DOWN $vdp-to-recover
PUP UP $vdp-to-recover, SPECIAL
For G-series versions, issue the following SCF commands:
SCF STOP DISK $VDP
SCF START DISK $VDP, SPECIAL
Recovering the Files
When the VDP enters the UP SPECIAL state, it is ready to recover VDP catalog files.
VDP catalog files are recovered through TMFCOM. For example:
TMFCOM RECOVER FILES $VDP11.ZSMSCAT.*, TOPHYSVOL $JETS,
RECOVERVDPPHASE1, FROMARCHIVE
If not all VDP catalog files need to be recovered, you can specify them individually.

You must specify both the RECOVERVDPPHASE1 attribute and the TOPHYSVOL
option. Only VDP catalog files are recovered, and no volume selection is done by
the VDP.

If a catalog file is purged as a result of a PURGE request from TMF, the VDP emits
an event message announcing the action.