[Users] Ceph / rbd and ovirt

[Josh Logan]

We had to put oVirt work on hold when F17 would not work on the target
hardware.  A bug with SAS controllers and grub.

Once F18 is out we will take another look.

For now I'm working on using Foreman with libvirt, but I also need to work
on Ceph support there as well.

Thanks, JOSH


On Fri, Oct 5, 2012 at 5:02 PM, Ayal Baron <abaron at redhat.com> wrote:

> Hi Josh,
>
> ----- Original Message -----
> >
> >
> >
> > On Sun, Sep 23, 2012 at 8:41 AM, Itamar Heim < iheim at redhat.com >
> > wrote:
> >
> >
> >
> > On 09/23/2012 05:33 PM, Josh Logan wrote:
> >
> >
> >
> >
> > On Sun, Sep 23, 2012 at 6:10 AM, Itamar Heim < iheim at redhat.com
> >
> >
> > <mailto: iheim at redhat.com >> wrote:
> >
> > On 09/22/2012 08:58 AM, Josh Logan wrote:
> >
> >
> > I'm currently setting up an ovirt cluster and so far it looks
> > good. I
> > like the integration with Foreman http://theforeman.org/ .
> >
> > I would like to use Ceph / rbd for my storage. I saw some
> > mention of
> > patches coming in May, but I did not find any new posts.
> >
> > What is the status of this work? Is there some patches I can
> > try out?
> > I have a working Ceph cluster and a working ovirt cluster, I
> > just need a
> > way to bring them together.
> >
> > Thanks, JOSH
> >
> >
> >
> > I don't remember any active work on this right now (for sure nothing
> > like the gluster integration being done).
> > but iiuc, ceph provides posixfs support - did you try creating a
> > posixfs based storage domain?
> > (you would need a "full" host (not ovirt-node) to install ceph
> > client components on).
> >
> > Thanks,
> > Itamar
> >
> >
> >
> > I am doing my work on Fedora 17 hosts, not ovirt-node, since I know
> > this
> > will need more OS support.
> >
> > There are a few different Ceph filesystems. But the posix based one
> > is
> > the least ready for production. The rbd filesystem is integrated into
> > qemu and libvirt is the most suited for VM images.
> >
> > Are the Gluster patches available? I would like to see what that
> > feature looks like and if I can modify them for Ceph.
> > If there is a better filesystem to investigate please let me know.
> >
> > Thanks, JOSH
> >
> >
> > gluster as a native storage domain (rather than posixfs) is still in
> > reviews (and has patches only for vdsm side).
> > http://gerrit.ovirt.org/#/c/ 6856/
> >
> > you can also use NFS in the meantime if relevant for ceph.
> >
> >
> >
> > Thanks for the pointer. I'll follow that and see what I learn.
> >
> > The vdsm side may be similar since both are network disk device.
> > There are only 2 steps needed to start up a VM with rbd.
> >
> > qemu-img create -f rbd rbd:data/host1 10G
> >
> > Then to start the image for qemu add -drive
> > file=rbd:data/host1,if=none,id=drive-virtio-disk0,format=raw
> >
> > or within libvirt:
> > <disk type='network' device='disk'>
> > <driver name='qemu' type='raw'/>
> > <source protocol='rbd' name='data/host1'/>
> > <target dev='vda' bus='virtio'/>
> > <address type='pci' domain='0x0000' bus='0x00' slot='0x05'
> > function='0x0'/>
> > </disk>
> >
> > So the steps are simple, and maybe Gluster is more complex then I
> > should use as an example.
>
> Have you followed up on this?
> Do you need more pointers?
>
> Regards,
> Ayal.
>
> >
> > Thanks, JOSH
> >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
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