[Linux-cluster] RHEL 6 cluster filesystem resource and LVM snapshots
xavier.montagutelli at unilim.fr
Tue Nov 23 10:17:45 UTC 2010
On Tuesday 23 November 2010 07:13:56 Jankowski, Chris wrote:
> I am preparing a build of a RHEL 6 cluster with a filesystem resource(s)
> (ext4 or XFS). The customer would like to use LVM snapshots of the
> filesystems for tape backup.
Where will your filesystem resource be located ? In a cluster, it's usually on
a shared storage, using *cluster* LVM. Are snapshots available now with CLVM ?
It was not the case last time I read documentation, which is/was (?) a serious
> The tape backup may take a few hours after
> which the snapshot will be deleted.
> Is the filesystem resource compatible with using LVM snapshots?
> How can I reconcile the temporary existence of a snapshot with the notion
> of the filesystem resource, which is all about having things permanently
> mounted ?
> Would either ext4 or XFS be preferable for any reasons for use with
> snapshots for backup?
> I'd appreciate your comments.
> Thanks and regards,
> Chris Jankowski
Xavier Montagutelli Tel : +33 (0)5 55 45 77 20
Service Commun Informatique Fax : +33 (0)5 55 45 75 95
Universite de Limoges
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