<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div><br></div><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Ernest Beinrohr" <Ernest.Beinrohr@axonpro.sk><br><b>To: </b>"users" <users@ovirt.org><br><b>Sent: </b>Monday, November 25, 2013 12:20:08 PM<br><b>Subject: </b>[Users] How to backup thin provisioned qcow2 disks?<br><div><br></div>
Hi, I'm currently looking for ways to backup my disks. <br>
Live storage migration converted my disks from <br>
preallocated to thin provisioning. Preallocated disk <br>
backups are working from a simple dd from a snapshot, <br>
but the thin qcow2 disks are a problem. I seems it uses <br>
multiple logical volumes (3 in my case).</blockquote><div>For one snapshot? Are you sure?</div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"> Also they <br>
are combined MUCH bigger than the preallocated:<br>
8GB raw vs thin: 31 GB - 1 snapshot.</blockquote><div>What version are you using?</div><div>And on what storage?</div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><br><br>
So I have two questions:<br>
- how would you backup these thin disks?</blockquote><div>You could just copy all three of your volumes.</div><div>A more robust way, though, would probably be to export the disk to an export domain.</div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><br>
- is it possible to convert thin to preallocated and <br>
discard the snapshots</blockquote><div>Unfortunately, not while the VM is still running. If you shut it down, you can merge the snapshot back.</div><div>Go to VMs -> Snapshots -> select the snapshot you want to remove, and click delete.</div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><br><br><br>
thanks<br><br><div class="moz-signature">-- <br><div id="oernii_footer" style="color: gray;"><span style="font-family: Lucida Console, Luxi Mono, Courier,
monospace; font-size: 90%;">
Ernest Beinrohr, AXON PRO<br>
DevOps,
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