Re: [ovirt-users] posix compliant fs with ceph rbd
26.01.2017 11:11, Nir Soffer пишет:
On Wed, Jan 25, 2017 at 8:55 PM, Yura Poltoratskiy
<yurapoltora(a)gmail.com> wrote:
> Hi,
>
> I want to use Ceph with oVirt in some non standard way. The main idea is to
> map rbd volume to all computes and to get the same block device, say
> /dev/foo/bar, across all nodes, and then use "POSIX compliant file
systems"
> option to add Storage Domain.
>
> Am I crazy?
Yes
Thnx :)
> If not, what should I do next: create a file system on top of
> /dev/foo/bar, say XFS, and add DATA Domain as POSIX compliant? Does it work,
> I mean does oVirt compatible with not clustered file system in this
> scenario?
This can work only for clustered file system, not with XFS. Double mounting will
quickly corrupt the file system.
Can you tell me what FS should I choose to do some
experiments?
And in general: what is use cases for option like "POSIX compliant FS"?
> Mostly, I want to use rbd like oVirt do with iSCSI storage just to have
> scalability and high availability (for example, when one storage node
> failed).
You have two ways to use ceph:
- via cinder - you will get best performance and scalability
- via cephfs - you will get all features, works like fault tolerant NFS
Nir
> Thanks for advice.
>
> PS. Yes, I know about Gluster but want to use Ceph :)
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>