Re: Growing Clustered LVM2 volumes

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why you didn't add a new LUN and did something like this:

pvcreate <new LUN>
vgextend VolGroup <new pv>

and the rest of the procedure...

On Tue, Jun 10, 2008 at 8:23 PM, Joel Heenan
<jheenan@xxxxxxxxxxxxxxxxxxx> wrote:
> I am looking for detailed instructions on how to grow a LVM2 GFS volume.
>
>
> I have a 3 node cluster with a shared disk running GFS across them. I
> performed the following steps but was not successful:
>
> 1. Resized the disk on SAN from 50GB to 100GB
> 2. Halted the cluster and unmounted the disk on all nodes
> 3. Rebooted node 3 and executed pvresize. This command did not pick up
> the new size of the disk (but fdisk -l did).
> 4. Using fdisk deleted and re-created the LVM partition so that it was
> now using the entire disk
> 5. Restarted node 3
> 6. At this point node 3 no longer saw the disk as containing the LVM
> volume and I believe I had probably corrupted my data. I used pvcreate
> with the uuid flag to try and revive the data and then restored the vg
> information from backup from one of the other nodes but it was not
> sucessful.
>
> My question is, given a 3 node cluster with GFS running on a clustered
> LVM2 volume, how do I resize the physical volume from 50GB to 100GB
>
> The servers are all running:
> "Red Hat Enterprise Linux AS release 4 (Nahant Update 5)"
>
> They are AMD 64-bit DL585's. Our san is an EVA8000. The cards are all
> QLogic HBA's.
>
> Thanks
>
> Joel
>
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