Re: rbd snapshot in qemu and libvirt

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On Thu, 19 Apr 2012, Martin Mailand wrote:
> Hi List,
> 
> is it possible to quiesce the disk before a snapshot? Or does it make no sense
> with rbd?
> How about the new rbd_cache, does it get flushed before the snapshot?
> 
> I would like to use it like this.
> 
> virsh snapshot-create --quiesce $DOMAIN

librbd does flush before taking a snapshot.  I haven't seen --quiesce 
before, but it looks like it does exactly what I would want it to 
(freeze+thaw the fs inside the VM).

Let us know how it works for you!
sage

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