Veritas Volume Manager 5.0 Troubleshooting Guide Guide (September 2006)

77Error messages
Understanding messages
The first message indicates that disks have been moved from a system that has
crashed or that failed to detect the group before the disk was moved. The locks stored
on the disks must be cleared.
The second message indicates that the disk group does not contain any valid disks
(not that it does not contain any disks). The disks may be considered invalid due to a
mismatch between the host ID in their configuration copies and that stored in the /
etc/vx/volboot file.
To clear locks on a specific set of devices, use the following command:
# vxdisk clearimport devicename ...
To clear the locks during import, use the following command:
# vxdg -C import diskgroup
Caution: Be careful when using the vxdisk clearimport or vxdg -C import
command on systems that have dual-ported disks. Clearing the locks allows those
disks to be accessed at the same time from multiple hosts and can result in corrupted
data.
An import operation fails if some disks for the disk group cannot be found among
the disk drives attached to the system.
Disk for disk group not found
Disk group has no valid configuration copies
The first message indicates a recoverable error.
The second message indicates a fatal error that requires hardware repair or the
creation of a new disk group, and recovery of the disk group configuration and data:
If some of the disks in the disk group have failed, you can force the disk group to be
imported with this command:
# vxdg -f import diskgroup
Caution: Be careful when using the -f option. It can cause the same disk group to be
imported twice from different sets of disks. This can cause the disk group
configuration to become inconsistent.
As using the
-f option to force the import of an incomplete disk group counts as a
successful import, an incomplete disk group may be imported subsequently without
this option being specified. This may not be what you expect.
These operations can also be performed using the
vxdiskadm utility. To deport a
disk group using
vxdiskadm, select menu item 8 (Remove access to
(deport) a disk group). To import a disk group, select item 7 (Enable
access to (import) a disk group). The
vxdiskadm import operation
checks for host import locks and prompts to see if you want to clear any that are
found. It also starts volumes in the disk group.