[Gluster-devel] Fwd: [ovirt-devel] Using libgfapi on Gluster Storage Domains

[Vijay Bellur]

FYI - if you are interested in trying out libgfapi support with oVirt.

-Vijay

---------- Forwarded message ----------
From: Federico Simoncelli <fsimonce at redhat.com>
Date: Fri, Oct 24, 2014 at 12:06 AM
Subject: [ovirt-devel] Using libgfapi on Gluster Storage Domains
To: oVirt Development <devel at ovirt.org>


Hi everyone, if you want to try and use the libgfapi support included
in qemu when accessing volumes on gluster storage domains you can try
to apply this patch:

 http://gerrit.ovirt.org/33768

As far as I know Jason Brooks already tried it and he reported a
positive feedback.

What has been tested so far is:

- qemu uses libgfapi to access the disks on gluster storage domains

- hotplug of disks on gluster storage domains works as expected (libgfapi)

- hotunplug works as expected (no failure when removing a disk that is
  using libgfapi)

- live snpashots work as expected

- disks of vms started before this patch are not affected (they won't
  use libgfapi since there's no way to do an hot swap)

One major flow that is yet untested is live storage migration.

Remember that you may need to do some special configuration on your
gluster volumes (most notably the allow-insecure ports option) as
described here:

 http://www.ovirt.org/Features/GlusterFS_Storage_Domain

Please try and test the patch if you're interested and report your
feedback.

Thanks,
--
Federico
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