HP StorageWorks HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide (AA-RV1HA-TE, March 2005)

Backing Up, Cloning, and Moving Data
190 HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide
hdisk3 and hdisk4 are the copied drives created by the storage system disk copy
procedure (Clone or Snapshot) that also became available after the AIX cfgmgr
was invoked. These new physical volumes are not associated with a volume group
and the PVID of both drives match those respectively in hdisk1 and hdisk2.
9. Change the new hdisks PVIDs.
In the example in Step 8, hdisk1 and hdisk2 are part of an active volume
group, however, AIX won't let hdisk3 and hdisk4 to be imported because the
PVIDs are already known by the system. Changing the PVIDs for each new
hdisks can resolve this issue using the following command for each new hdisk
copy:
chdev -l <New hdisk> -a pv=clear; chdev -l <New hdisk> -a pv=yes
10. Use the recreatevg AIX command to import and activate the new hdisks
into a volume group.
Although Step 9 solves the PVID problem in importing the new hdisks as a
volume group, there are still conflicts with the logical volume found on the
new hdisks and those from the original.
recreatevg is an undocumented AIX
command, available only in V4.3.3, that solves this logical volume issue. It
also imports and activates the volume group. Use the following command:
recreatevg -y <New Volume Group Name> <One of the new hdisks
set>
recreatevg
also creates a mount point, /fs, under which all mount points
from the original volume group are created, i.e., if the original mount is
/disk1, for example, then the path for the new volume group path is
/fs/disk1.
11. Mount the new volume group's logical volumes, after which the new logical
volumes should be ready for use.