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Re: [linux-lvm] SAN

On 22/04/2011 17:42, Jonathan Tripathy wrote:

On 22/04/2011 17:38, Stuart D. Gathman wrote:
On Fri, 22 Apr 2011, Jonathan Tripathy wrote:

What is the best way to deploy LVM in such a way that multiple servers could access the LVs? Really what I'm looking for is a "common VG" for all of our servers. Note though that only one server will actually access each LV, however it would be cool if another server could make a snapshot to perform an rsync backup.

This is what cluster LVM is for.  It provides a locking mechanism to
avoid conflicting changes to LVM metadata.

I'm a little confused on where CLVM fits into the "big picture". Let's say I have one SAN server, and 10 Xen Servers. Where do I install CLVM?

Am I correct in saying that I only need to install CLVM on my Xen nodes? Assuming that my SAN server is just a standard iSCSI server exporting a few targets. I would probably only have 1 LUN per vg (hense 1 PV per vg).

Is that correct?

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