I am sending this mail based on the below IRC discussion.
Apr 23 18:55:02 <deepakcs> Hi all, is there a way to just do a
fsfreeze (and un-freeze) of VM usign virsh. I don't see any option today....
Apr 23 18:55:52 <deepakcs> there is option to take snapshot (which
in turn would do freeze/un-freeze), but i want to exercise the
freeze/un-freeze only.. w/o the snapshot
Apr 23 19:23:57 <eblake> deepakcs: virsh qemu-agent-command can
trigger any agent command
Apr 23 19:24:35 <eblake> but it is officially unsupported - more
of a development aid
Apr 23 19:26:38 <eblake> if it turns out that freezing the guest
with libvirt commands is worth promoting into a supported api, instead
of the qemu-agent-command backdoor, then report that as an RFE to the list
Apr 23 19:27:14 <deepakcs> eblake, sorry was in a mtg..
Apr 23 19:28:03 <deepakcs> eblake, yeah.. i was wondering that it
would be good to have freeze/un-freeze as supported virsh ops.. then it
helps users exploit snapshot functionality provided by things like
storage arrays (as an example)
Apr 23 19:28:47 <eblake> well, as qemu continues to add more
snapshot building blocks, it may make sense
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