Veritas Storage Foundation™ 5.0.1 for Oracle RAC Installation, Configuration, and Administrator's Guide Extracts for the HP Serviceguard Storage Management Suite on HP-UX 11i v3

Table 5-11 Resynchronize Snapshot Notes
• You must be logged in as the Oracle database administrator.
• Before you can resynchronize the snapshot image, you must validate a snapplan and create
a snapshot. I
• f a clone database has been created, shut it down and unmount the file systems using the
dbed_vmclonedb -o umountcommand. This command also deports the disk group if
the primary and secondary hosts are different.
• The Oracle database must have at least one mandatory archive destination.
Prerequisites
• The dbed_vmsnap command can only be executed on the primary host.
• In a two-host configuration, the dbed_vmsnap command imports the disk group that was
deported from the secondary host and joins the disk group back to the original disk group.
The snapshot volumes again become plexes of the original volumes. The snapshot is then
resynchronized.
• See the dbed_vmsnap(1M) manual page for more information.
Usage Notes
NOTE: You cannot access Database FlashSnap commands (dbed_vmchecksnap, dbed_vmsnap,
and dbed_vmclonedb) with the SFDB menu utility.
To resynchronize the snapshot image
• Use the dbed_vmsnap command as follows:
# /opt/VRTS/bin/dbed_vmsnap -S ORACLE_SID -f SNAPPLAN -o resync
In this example, the snapshot image is resynchronized with the primary database.
# /opt/VRTS/bin/dbed_vmsnap -S PROD -f snap1 -o resync
dbed_vmsnap started at 2006-03-02 16:19:05The option resync has been
completed.dbed_vmsnap ended at 2006-03-02 16:19:26
Now, you can again start creating snapshots.
Removing a Snapshot Volume
If a snapshot volume is no longer needed, you can remove it and free up the disk space for other
uses by using the vxedit rm command.
Table 5-12 Remove Snapshot Notes
• You must be logged in as superuser.
• If the volume is on a mounted file system, you must unmount it before removing the
volume.
Prerequisites
To remove a snapplan and snapshot volume
1. To remove the snapshot and free up the storage used by it:
• If the snapshot has been taken, remove the snapshot as follows:
# vxsnap -g diskgroup dis snapshot_volume# vxvol -g diskgroup
stop snapshot_volume# vxedit -g diskgroup -rf rm snapshot_volume
• If the snapshot has not been taken and the snapshot plex (mirror) exists, remove the
snapshot as follows:
# vxsnap -g diskgroup rmmir volume
2. Remove the DCO and DCO volume:
# vxsnap -g diskgroup unprepare volume
3. Remove the snapplan.
# /opt/VRTS/bin/dbed_vmchecksnap -S PROD -f snapplan -o remove
82 Using FlashSnap for Backup and Recovery