On 16/03/2015, at 12.23, Alexandre DERUMIER <aderum...@odiso.com> wrote:

>>> We use Proxmox, so I think it uses librbd ? 
> 
> As It's me that I made the proxmox rbd plugin, I can confirm that yes, it's 
> librbd ;)
> Is the ceph cluster on dedicated nodes ? or vms are running on same nodes 
> than osd daemons ?
My cluster have Ceph OSDs+MONs on seperate PVE nodes, no VMs

> 
> 
>>> And I precise that not all VMs on that pool crashed, only some of them 
>>> (a large majority), and on a same host, some crashed and others not. 
> 
> Is the vm crashed, like no more qemu process ?
> or is it the guest os which is crashed ?
Hmm long time now, remember VM status was stopped, resumed didn't work aka they 
were started again asap :)

> (do you use virtio, virtio-scsi or ide for your guest ?)
virtio

/Steffen

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