[ceph-users] oVirt/RHEV and Ceph

Konstantin Shalygin k0ste at k0ste.ru
Wed Nov 1 01:19:41 PDT 2017

> I haven't seen much talk about direct integration with oVirt. Obviously it
> kind of comes down to oVirt being interested in participating. But, is the
> only hold-up getting development time toward an integration or is there
> some kind of friction between the dev teams?
We use Ceph Kraken with oVirt 4.1 for a half year.

You need OpenStack Cinder as a mapper.oVirt manager does not know how to 
communicate with the RBD itself, but know about Cinder API. Cinder can 
operate with many storage, oVirt use it as "External provider". May be 
looks ugly, but works flawless. I was installed RDO on livbirt across 
with oVirt Manager - so it's still one bare metal device for manage 
everything. Also this is single point of failure, but not affected on 
running VM, because VM don't know anything about Cinder, qemu 
communicate with Ceph cluster only. Just make you engine-backup and 
OpenStack database backup once at hour/day.

There <http://lists.ovirt.org/pipermail/users/2017-October/084796.html>, 
on ovirt-users mail list Matthias Leopold perform first tests with 
Luminous. I'm on the way to Luminous, too.

Best regards,
Konstantin Shalygin

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