Veritas Volume Manager 5.0 Release Notes (5900-0593, March 2010)

Veritas Volume Manager 5.0 Release Notes
Known Issues
Chapter 126
Use -f flag to move all such the volumes turning off allsites flag on them.
The volume(s) with allsites flags are being moved to the target disk group
that doesn’t have any site records.
Use -f flag to add all such volumes turning off allsites flag on them.
Workaround:
The suggested workaround is to ensure that allsites=off is set on all the volumes that
are being moved between disk groups:
1. Run the following command on each of the volumes that is being moved split or joined
to find out if allsites=on is set on any of them.
# vxprint -g diskgroup -F %allsites volume
2. Run the following command on each of the volumes with allsites=onset that you
found in the previous step.
# vxvol -g diskgroup set allsites=off volume
3. Proceed with the disk group split, join or move operation.
• Restoring site records
The vxmake command can be used to recreate a disk group configuration, but not to
restore site records. After restoring a disk group configuration, use the following
command to recreate the site records manually
# vxdg -g diskgroup addsite site [584200]
Snapshot and Snapback Issues
• Using snapshots as root disks
It is recommended that you do not use snapshots of the root volume as a bootable volume.
A snapshot can be taken to preserve the data of the root volume, but the snapshot will not
be bootable. The data from the snapshot would have to be restored to the original root
volume before the machine could be booted with the preserved data.
• File System Check of a Snapshot
Normally, a file system is not affected when a snapshot is taken. However, if an SFCFS
file system is not mounted, it is likely that the fsck of the snapshot will take longer than is
usually necessary, depending on the I/O activity at the time of the snapshot.
Workaround: When taking a snapshot of an SFCFS file system, you should ensure that at
least one of the volumes defined in the command line is mounted on the cluster master.
• Mount operation can cause inconsistencies in snapshots