vgextend Fails with "Verification of unique LVM disk id on each disk in the volume group failed" HP_UX

vgextend Fails with "Verification of unique LVM disk id on each disk in the volume group failed" HP_UX 

ISSUE:
I created a volume group using persistent device files, but I cannot vgextend the alternate links into the volume group. The following error message is received:

# vgextend /dev/vg02 /dev/dsk/c8t0d5 /dev/dsk/c8t0d6 /dev/dsk/c8t0d7 /dev/dsk/c8t1d0

Verification of unique LVM disk id on each disk in the volume group /dev/vg02 failed.

Following are the sets of disks having identical LVM disk id
/dev/dsk/c6t0d5 /dev/dsk/c8t0d5
/dev/dsk/c6t0d6 /dev/dsk/c8t0d6
/dev/dsk/c6t0d7 /dev/dsk/c8t0d7

/dev/dsk/c6t1d0 /dev/dsk/c8t1d0

SOLUTION:

Investigation of the error identified that the error message was due to a the version of firmware on the array.

To check the firmware version, issue the following command:


# scsimgr -v get_info -D /dev/pt/

Check for:
SPC protocol revision = 4 .

If the revision is 2, the DMX SPC needs to have a firmware upgrade.


After upgrading the firmware (requires EMC assistance), the problem was resolved.