I'm not sure what you mean by NFS each host, but you'll need some way to at least ensure the data is available. Be that be replicated gluster or a centralized SAN etc.
On Thu, Feb 6, 2014 at 1:21 PM, Maurice James <midnightst...@msn.com> wrote: > Hmm. So in that case would I be able to drop the Gluster setup and use NFS > each host and make sure power fencing is enabled? Will that still achieve > fault tolerance, or is a replicated gluster still required? > > > > *From:* Andrew Lau [mailto:and...@andrewklau.com] > *Sent:* Wednesday, February 05, 2014 9:17 PM > *To:* Maurice James > *Cc:* users > *Subject:* Re: [Users] Gluster question > > > > There was another recent post about this but a sum up was: > > > > You must have power fencing to support VM HA otherwise they'll be an issue > with the engine not knowing whether the VM is still running and not bring > it up on a new host to avoid data corruption. Also make sure you have your > quorum setup properly based on your replication scenario so you can > withstand 1 host being lost. > > > > I don't believe they'll "keep running" in a sense because of the host > being lost, but they would restart on another host. At least that's what > I've noticed in my case. > > > > On Thu, Feb 6, 2014 at 1:04 PM, Maurice James <midnightst...@msn.com> > wrote: > > I currently have a new setup running ovirt 3.3.3. I have a Gluster storage > domain with roughly 2.5TB of usable space. Gluster is installed on the > same systems as the ovirt hosts. The host break down is as follows > > > > Ovirt DC: > > 4 hosts in the cluster. Each host has 4 physical disks in a RAID 5. Each > disk is 500GB. With the OS installed and configured I end up with 1.2TB of > usable space left for my data volume > > > > Gluster volume: > > 4 bricks with 1.2TB of space per brick (Distribute Replicate leaves me > with about 2.5TB in the storage domain) > > > > > > Does this setup give me enough fault tolerance to survive losing a host > and have my HA vm automatically move to an available host and keep running?? > > > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > >
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