Adding disk..

Jayraj — Fri, 21 Nov 2008 20:15:04 GMT

How to add a disk to already existing volume group..

Re: Adding disk..

OFC_EDM — Fri, 21 Nov 2008 20:36:52 GMT

Details please

Which OS?
Clustered/Non-Clustered?
Which VG?
Local Disk or SAN disk?

Also have searched the Forum for answers? I'm certain this topic has been covered previously.

Regards

Re: Adding disk..

Analyst — Sat, 22 Nov 2008 00:17:38 GMT

use vgextend to add new disk to existing VG.

check for the vgdisplay, to know the number of PV used.

Thanks,
kamal.

Re: Adding disk..

Johnson Punniyalingam — Sat, 22 Nov 2008 00:29:25 GMT

How to add a disk to already existing volume group.. .?

Question:- add disk to already existing VG

No Cluster aware

pvcreate /dev/rdsk/cxtxdx
vgextend /dev/vgxx

is it Cluster aware Volume group.?

if Cluster aware follow as per below

1. pvcreate /dev/rdsk/cxtxdx

2. vgextend /dev/vgXX/ /dev/dsk/cxtxdx

3. Activate the VG in exclusive mode in primary node; deactivating in the other
>>>>>vgchange -a n /dev/vgxx (on secondary node)
>>>>>vgchange -a e /dev/vgxx (on primary)
Where /dev/vgxx is the VG name

4. Extend the VG if necessary
>>>>>vgextend -g vgxxpn /dev/vgxx pv1 pv2 .... pvn
Where vgxxpn is the PVG and pv1....pvn is the disk (/dev/dsk/c?t?d?) Make sure you already performed the initial steps in extending VG

5. Create a map file
>>>>vgexport -pvs -m /dev/vgxx

6. Copy the mapfile to the other node

7. Activate in share mode
>>>>>vgchange -a s /dev/vgxx

On the other node:
1. Export the VG
>>>vgexport /dev/vgxx

2. Recreate the directory
>>>>mkdir -p /dev/vgxx

3. Recreate the VG group file
>>>mknod /dev/vgxx/group c 64 0xMM0000
where MM is a unique identifier (ex 01 for vg01)

4. Preview the vgimport to check for any possible error
>>>>vgimport -pvs -m /dev/vgxx
where mapfile is the one copied from the first node

5. If no error, remove the preview mode
>>>>vgimport -vs -m /dev/vgxx

6. Activate in share mode
>>>>vgchange -a s /dev/vgxx

Thanks,
Johnson

Re: Adding disk..

James R. Ferguson — Sat, 22 Nov 2008 00:31:46 GMT

Hi:

Have a look at chapter-6 of this guide:

http://www.docs.hp.com/en/B2355-90950/index.html

Regards!

...JRF...

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