8:57 a.m.
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----- Original Message -----
From: "Ernest Beinrohr" <Ernest.Beinrohr(a)axonpro.sk>
To: "users" <users(a)ovirt.org>
Sent: Monday, November 25, 2013 12:20:08 PM
Subject: [Users] How to backup thin provisioned qcow2 disks?
Hi, I'm currently looking for ways to backup my disks.
Live storage migration converted my disks from
preallocated to thin provisioning. Preallocated disk
backups are working from a simple dd from a snapshot,
but the thin qcow2 disks are a problem. I seems it uses
multiple logical volumes (3 in my case).
For one snapshot? Are you sure?=20
Also they
are combined MUCH bigger than the preallocated:
8GB raw vs thin: 31 GB - 1 snapshot.
What version are you using?=20
And on what storage?=20
So I have two questions:
- how would you backup these thin disks?
You could just copy all three of your
volumes.=20
A more robust way, though, would probably be to export the disk to an expor=
t domain.=20
- is it possible to convert thin to preallocated and
discard the snapshots
Unfortunately, not while the VM is still running. If you shut
it down, you =
can merge the snapshot back.=20
Go to VMs -> Snapshots -> select the snapshot you want to remove, and click=
delete.=20
thanks
--
Ernest Beinrohr, AXON PRO
DevOps, Ing , RHCE , RHCVA , LPIC , VCA , +421-2--6241-0360 ,
+421-903--482-603
icq:28153343, skype:oernii-work , jabber:oernii@jabber.org
=E2=80=9CFor a successful technology, reality must take precedence
over p=
ublic
relations, for Nature cannot be fooled.=E2=80=9D Richard Feynman
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
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<html><body><div style=3D"font-family: times new roman, new york,
times, se=
rif; font-size: 12pt; color:
#000000"><div><br></div><div><br></div><hr
id=
=3D"zwchr"><blockquote style=3D"border-left:2px solid
#1010FF;margin-left:5=
px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-de=
coration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>Fr=
om: </b>"Ernest Beinrohr"
&lt;Ernest.Beinrohr(a)axonpro.sk&gt;<br><b>To: </b>=
"users" &lt;users(a)ovirt.org&gt;<br><b>Sent:
</b>Monday, November 25, 2013 1=
2:20:08 PM<br><b>Subject: </b>[Users] How to backup thin provisioned
qcow2 =
disks?<br><div><br></div>
=20
=20
=20
=20
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 snaps=
hot? Are you sure?</div><blockquote style=3D"border-left:2px solid
#1010FF;=
margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:n=
ormal;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=3D"border-=
left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-wei=
ght:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Ari=
al,sans-serif;font-size:12pt;"><br><br>
So I have two questions:<br>
- how would you backup these thin disks?</blockquote><div>You could jus=
t copy all three of your volumes.</div><div>A more robust way, though, woul=
d probably be to export the disk to an export domain.</div><blockquote styl=
e=3D"border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#=
000;font-weight:normal;font-style:normal;text-decoration:none;font-family:H=
elvetica,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 snaps=
hot back.</div><div>Go to VMs -> Snapshots -> select the
snapshot you=
want to remove, and click delete.</div><blockquote
style=3D"border-left:2p=
x solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:nor=
mal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans=
-serif;font-size:12pt;"><br><br><br>
thanks<br><br><div class=3D"moz-signature">--
<br><div id=3D"oernii_foo=
ter" style=3D"color: gray;"><span style=3D"font-family: Lucida
Console, Lux=
i Mono, Courier,
monospace; font-size: 90%;">
Ernest Beinrohr, AXON PRO<br>
DevOps,
<a style=3D"text-decoration: none; color: gray;"
href=3D"http://w=
ww.beinrohr.sk/ing.php" target=3D"_blank">Ing</a>, <a
style=3D"text-decorat=
ion: none; color: gray;" href=3D"http://www.beinrohr.sk/rhce.php"
target=3D=
"_blank">RHCE</a>, <a style=3D"text-decoration: none; color:
gray;" href=3D=
"http://www.beinrohr.sk/rhce.php"
target=3D"_blank">RHCVA</a>, <a style=3D"=
text-decoration: none; color: gray;" href=3D"http://www.beinrohr.sk/lpic.ph=
p" target=3D"_blank">LPIC</a>, <a
style=3D"text-decoration: none; color: gr=
ay;" href=3D"http://www.beinrohr.sk/vca.php"
target=3D"_blank">VCA</a>, <a =
style=3D"text-decoration: none; color: gray;"
href=3D"callto://+421-2--6241=
-0360" target=3D"_blank">+421-2--6241-0360</a>, <a
style=3D"text-decoration=
: none; color: gray;" href=3D"callto://+421-903--482-603"
target=3D"_blank"=
+421-903--482-603</a><br>
icq:28153343,
<a style=3D"text-decoration: none; color: gray;" hr=
ef=3D"callto://oernii-work"
target=3D"_blank">skype:oernii-work</a>,
<a class=3D"moz-txt-link-abbreviated"
href=3D"mailto:jabber:oerni=
i(a)jabber.org" target=3D"_blank">jabber:oernii@jabber.org</a>
<br>
</span><hr style=3D"height: 1px; width: 95%"><span
style=3D"font-si=
ze:
70%;">
=E2=80=9CFor a successful technology, reality must take precedenc=
e
over public relations, for Nature cannot be fooled.=E2=80=9D Rich=
ard
Feynman </span></div></div><img border=3D"0"
width=3D"1" height=
=3D"1"
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______________________________________________<br>Users mailing list<br>Use=
rs@ovirt.org<br>http://lists.ovirt.org/mailman/listinfo/users<br></blockquo=
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