[Pacemaker] Clustered LVM in failover cluster

[Lars Marowsky-Bree]

On 2012-09-11T08:26:28, David Morton <davidmorton78 at gmail.com> wrote:

> So if we do not use clustered VG's will any changes made to a shared disk
> (non clustered filesystem) be visible to all cluster nodes ? Or does
> activating the VG resource effectively 'refresh' the LVM layout prior to
> any filesystem actions taking place in the event of a failover ?
> 
> We will have one OCFS2 volume so DLM and cLVM are requirements there either
> way.

Ah, OK, if you use OCFS2, you can of course use DLM/cLVM2 directly.

In the case I was thinking of - pure fail-over - activating the VG on a
node would refresh the data from disk, yes.


Regards,
    Lars

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