Hi Dan,

Yes..it's glusterfs....

glusterfs logs :- http://ur1.ca/j3b5f

OS Version: RHEL - 7 - 0.1406.el7.centos.2.3
Kernel Version: 3.10.0 - 123.el7.x86_64
KVM Version: 1.5.3 - 60.el7_0.2
LIBVIRT Version: libvirt-1.1.1-29.el7_0.3
VDSM Version: vdsm-4.16.7-1.gitdb83943.el7
GlusterFS Version: glusterfs-3.6.1-1.el7
Qemu Version : QEMU emulator version 1.5.3 (qemu-kvm-1.5.3-60.el7_0.2)

Thanks,
punit




On Thu, Dec 11, 2014 at 5:47 PM, Dan Kenigsberg <danken@redhat.com> wrote:
On Thu, Dec 11, 2014 at 03:41:01PM +0800, Punit Dambiwal wrote:
> Hi,
>
> Suddenly all of my VM on one host paused with the following error :-
>
> vm has paused due to unknown storage error
>
> I am using glusterfs storage with distributed replicate replica=2....my
> storage and compute both running on the same node...
>
> engine logs :- http://ur1.ca/j31iu
> Host logs :- http://ur1.ca/j31kk    (I grep it for one Failed VM)

libvirtEventLoop::INFO::2014-12-11 15:00:48,627::vm::4780::vm.Vm::(_onIOError) vmId=`e84bb987-a817-436a-9417-8eab9148e57e`::abnormal vm stop device virtio-disk0 error eother

Which type of storage is it? gluster? Do you have anything in particular
on glusterfs logs?

Which glusterfs/qemu/libvirt/vdsm versions do you have installed?