HP IR volume

[Ajaysen Reddy]

I was pushing ignite images to my new servers and seems like I have pushed the image to stand alone drive instead of the Hardware mirrored IR volume.

# sasmgr get_info -D /dev/sasd0 -q raid

Fri Jun 13 10:34:03 2008

---------- PHYSICAL DRIVES ----------
LUN dsf SAS Address Enclosure Bay Size(MB)

/dev/rdsk/c1t0d0 0x5000c500077d9855 1 6 70007

---------- LOGICAL DRIVE 5 ----------

Raid Level : RAID 1
Volume sas address : 0x4bc809b8443dba3
Device Special File : /dev/rdsk/c1t1d0
Raid State : OPTIMAL
Raid Status Flag : ENABLED
Raid Size : 69878
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %

Participating Physical Drive(s) :

SAS Address Enc Bay Size(MB) Type State

0x5000c500077dbc65 1 7 70007 SECONDARY ONLINE
0x5000c500077d8979 1 8 70007 PRIMARY ONLINE

ioscan info:
disk 1 0/4/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP DG072ABAB3
/dev/dsk/c1t0d0 /dev/dsk/c1t0d0s3 /dev/rdsk/c1t0d0s2
/dev/dsk/c1t0d0s1 /dev/rdsk/c1t0d0 /dev/rdsk/c1t0d0s3
/dev/dsk/c1t0d0s2 /dev/rdsk/c1t0d0s1
disk 2 0/4/1/0.0.0.1.0 sdisk CLAIMED DEVICE HP IR Volume
/dev/dsk/c1t1d0 /dev/rdsk/c1t1d0

My question is - can I mirror the current OS to the IR volume and then later drop off the mirror? Looking for a low risk solution. cannot take the system down. Don't have down time on this server. :( - Thanks in Advance.

[Torsten.]

This is your IR volume:

---------- LOGICAL DRIVE 5 ----------

Raid Level : RAID 1
Volume sas address : 0x4bc809b8443dba3
Device Special File : /dev/rdsk/c1t1d0


but you did install to

/dev/dsk/c1t0d0

If you have space enough, your plan (mirroring) should work.

[Torsten.]

Another possibility:

Use DRD and clone the existing vg00 to the IR volume (drd-clone), activate the clone and reboot - you are done.

[Ajaysen Reddy]

I would appreciate any step by step information for mirroring. Will there be any differences for mirroring - mirroring from a regular disk to an IR Volume ?

[Torsten.]

See the appendix for mirroring an Integrity Server:

http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf