Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Moving Disk Groups Between Systems
146 VERITAS Volume Manager Administrator’s Guide
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.
You may want to import a disk group when some disks are not available. The import
operation fails if some disks for the disk group cannot be found among the disk drives
attached to the system. When the import operation fails, one of several error messages is
displayed.
The following 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:
VxVM vxdg ERROR V-5-1-587 Disk group groupname: import failed:
Disk group has no valid configuration copies
The following message indicates a recoverable error.
VxVM vxdg ERROR V-5-1-587 Disk group groupname: import failed:
Disk for disk group not found
If some of the disks in the disk group have failed, force the disk group to be imported with
the 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, causing the disk group to become
inconsistent.
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.