rbd snapshot slow restore

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I'm finding snapshot restores to be very slow. With a small vm, I can
take a snapshot withing seconds, but restores can take over 15
minutes, sometimes nearly an hou, depending on how I have tweaked
ceph.

The same vm as a QCOW2 image on NFS or native disk can be restored in
under 30 seconds.

Is this normal? is ceph just really slow at restoring rbd snapshots,
or have I really borked my setup? :)

Very basic setup:
- 3 Monitors
- 2 OSD's, ZFS on  (WD 3TB Red). Not fast disks
- 2 !0GB SSD Journals


-- 
Lindsay
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