[Gluster-users] Re: about HA infrastructure for hypervisors

Nicolas Sebrecht nsebrecht at piing.fr
Thu Jun 28 09:36:48 UTC 2012

The 27/06/12, Brian Candler wrote:

> I've made a test setup like this, but unfortunately I haven't yet been able
> to get half-decent performance out of glusterfs 3.3 as a KVM backend.  It
> may work better if you use local disk for the VM images, and within the VM
> mount the glusterfs volume for application data.


> Alternatively, look at something like ganeti (which by default runs on top
> of drbd+LVM, although you can also use it to manage a cluster which uses a
> shared file store backend like gluster)

Didn't know about ganeti. We'll take a look.

> Maybe 3.3.1 will be better. But today, your investment in SSDs is quite
> likely to be wasted :-(

Hope it won't be wasted. To avoid that, all you feedbacks are very

> You'd also need some mechanism for starting each VM on node B if node A
> fails.  You can probably script that, although there are lots of hazards for
> the unwary.  Maybe better to have the failover done manually.


Nicolas Sebrecht

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