[Users] Opinions needed: 3 node gluster replica 3 | NFS async | snapshots for consistency

[Steve Dainard]

I'm looking for some opinions on this configuration in an effort to
increase write performance:

3 storage nodes using glusterfs in replica 3, quorum.
Ovirt storage domain via NFS
Volume set nfs.trusted-sync on
On Ovirt, taking snapshots often enough to recover from a storage crash
Using CTDB to manage NFS storage domain IP, moving it to another storage
node when necessary

Something along the lines of EC2's data consistency model, where only
snapshots can be considered reliable. The Ovirt added advantage would be
memory consistency at time of snapshot as well.

Feedback appreciated, including 'you are insane for thinking this is a good
idea' (and some supported reasoning would be great).

Thanks,



*Steve Dainard *
IT Infrastructure Manager
Miovision <http://miovision.com/> | *Rethink Traffic*

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