5:47 a.m.
On 8. 2. 2022, at 6:14, Guillaume Pavese
<guillaume.pavese(a)interactiv-group.com> wrote:
To replicate HCI without Gluster,
is there a way to set up a Managed Block Storage (I think that means Ceph?) cluster
hosted on the hypervisors, in a similar way as a Gluster Replica 3 ?
oVirt's MBS (CEPH) support is targeted for external CEPH clusters, I'm not aware
of any effort to colocate the services like with gluster. With gluster we tried to ignore
the impact of one affecting the other, with CEPH being more demanding it would be even
more difficult.
Is that possible/recommended or discouraged?
it might work in the ideal case, but since there is no awareness (like there is in
Gluster) when you e.g. fence bunch of oVirt hosts you may easily do some damage to each.
We are not ready for Openshift/Kubevirt yet and we would like to
investigate whether oVirt on Ceph in HCI is doable.
OKD Virtualization (okd+kubevirt/hco+rook) would be doable in future...most people are not
ready just yet, and the project is not so polished yet either, but it will get there...
Thanks,
michal
Thank for any feedback
Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group
On Mon, Feb 7, 2022 at 10:47 PM Nir Soffer <nsoffer(a)redhat.com
<mailto:nsoffer@redhat.com>> wrote:
On Mon, Feb 7, 2022 at 3:04 PM Sandro Bonazzola <sbonazzo(a)redhat.com
<mailto:sbonazzo@redhat.com>> wrote:
Il giorno lun 7 feb 2022 alle ore 09:28 Thomas Hoberg <thomas(a)hoberg.net
<mailto:thomas@hoberg.net>> ha scritto:
Sandro, I am ever so glad you're fighting on, buon coraggio!
Thanks :-)
Yes, please write a blog post on how oVirt could develop without a commercial downstream
product that pays your salaries.
I have no magic recipe but I know oVirt is used in several universities with computer
science departments. If just 1 student for each of them would contribute 1 patch per
semester that would help keeping oVirt alive even without any downstream company backing
it.
And there are also people in this list like @Jean-Louis Dupond
<mailto:jean-louis@dupond.be> who are contributing fixes, latest is here
https://github.com/oVirt/ovirt-engine/pull/59
<https://github.com/oVirt/ovirt-engine/pull/59> .
I don't want to write a book on how an opensource project can be healthy, I believe
there are already out there :-) .
It would indeed help if some company or foundation would show up and get engaged with the
project but this is not strictly needed for an open source project to be alive.
Ideally you'd add a perspective for current HCI users, many of which chose this
approach, because a fault-tolerant SAN or NAS wasn't available.
I'll let the storage team to answer here
The oVirt storage team never worked on HCI and we don't plan to work on
it in the future. HCI was designed and maintained by Gluster folks. Our
contribution for HCI was adding 4k support, enabling usage of VDO.
Improving on the HCI side is unlikely to come from Red Hat, but nothing
blocks other companies or contributors from working on this.
Our focus for 4.5 is Managed Block Storage and incremental backup.
Nir
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