[Users] How to backup thin provisioned qcow2 disks?
This is a multi-part message in MIME format. --------------010101040609000103060503 Content-Type: text/plain; charset=windows-1250; format=flowed Content-Transfer-Encoding: 8bit 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). Also they are combined MUCH bigger than the preallocated: 8GB raw vs thin: 31 GB - 1 snapshot. So I have two questions: - how would you backup these thin disks? - is it possible to convert thin to preallocated and discard the snapshots thanks -- Ernest Beinrohr, AXON PRO DevOps, Ing <http://www.beinrohr.sk/ing.php>, RHCE <http://www.beinrohr.sk/rhce.php>, RHCVA <http://www.beinrohr.sk/rhce.php>, LPIC <http://www.beinrohr.sk/lpic.php>, VCA <http://www.beinrohr.sk/vca.php>, +421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603 <callto://+421-903--482-603> icq:28153343, skype:oernii-work <callto://oernii-work>, jabber:oernii@jabber.org ------------------------------------------------------------------------ For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. Richard Feynman --------------010101040609000103060503 Content-Type: text/html; charset=windows-1250 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1250"> </head> <body bgcolor="#FFFFFF" text="#000000"> 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). Also they <br> are combined MUCH bigger than the preallocated:<br> 8GB raw vs thin: 31 GB - 1 snapshot.<br> <br> So I have two questions:<br> - how would you backup these thin disks?<br> - is it possible to convert thin to preallocated and <br> discard the snapshots<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, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/ing.php">Ing</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/vca.php">VCA</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-903--482-603">+421-903--482-603</a><br> icq:28153343, <a style="text-decoration: none; color: gray;" href="callto://oernii-work">skype:oernii-work</a>, <a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a> <br> </span> <hr style="height: 1px; width: 95%"> <span style="font-size: 70%;"> For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. Richard Feynman </span> </div> </div> <img src="http://nojsstats.appspot.com/UA-44497096-1/email.beinrohr.sk" moz-do-not-send="true" border="0" width="1" height="1"> </body> </html> --------------010101040609000103060503--
------=_Part_231984_1196979840.1386169070765 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable ----- Original Message -----
thanks
------=_Part_231984_1196979840.1386169070765 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <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" <Ernest.Beinrohr@axonpro.sk><br><b>To: </b>= "users" <users@ovirt.org><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"=
This is a multi-part message in MIME format. --------------080101080506030805060300 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Dňa 04.12.2013 15:57, Allon Mureinik wrote / napísal(a):
Not anymore, i've deleted the host and its disks :(
3.3 on iscsi. And I am talking about the LVM lv sizes. No idea how much of that space the qcow actually occupies.
The problem was, that i didn't know WHICH volumes to copy, but that was probably due a wrong sql query. -- Ernest Beinrohr, AXON PRO DevOps, Ing <http://www.beinrohr.sk/ing.php>, RHCE <http://www.beinrohr.sk/rhce.php>, RHCVA <http://www.beinrohr.sk/rhce.php>, LPIC <http://www.beinrohr.sk/lpic.php>, VCA <http://www.beinrohr.sk/vca.php>, +421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603 <callto://+421-903--482-603> icq:28153343, skype:oernii-work <callto://oernii-work>, jabber:oernii@jabber.org ------------------------------------------------------------------------ “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” Richard Feynman --------------080101080506030805060300 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <div class="moz-cite-prefix">Dňa 04.12.2013 15:57, Allon Mureinik wrote / napísal(a):<br> </div> <blockquote cite="mid:1426271281.231985.1386169070765.JavaMail.root@redhat.com" type="cite"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"> <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;"> <div>Hi, I'm currently looking for ways to backup my disks. <br> </div> 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> </div> </blockquote> Not anymore, i've deleted the host and its disks :(<br> <blockquote cite="mid:1426271281.231985.1386169070765.JavaMail.root@redhat.com" type="cite"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"> <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> </div> </blockquote> 3.3 on iscsi. And I am talking about the LVM lv sizes. No idea how much of that space the qcow actually occupies.<br> <blockquote cite="mid:1426271281.231985.1386169070765.JavaMail.root@redhat.com" type="cite"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"> <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> </div> </blockquote> The problem was, that i didn't know WHICH volumes to copy, but that was probably due a wrong sql query.<br> <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, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/ing.php">Ing</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/vca.php">VCA</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-903--482-603">+421-903--482-603</a><br> icq:28153343, <a style="text-decoration: none; color: gray;" href="callto://oernii-work">skype:oernii-work</a>, <a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a> <br> </span> <hr style="height: 1px; width: 95%"> <span style="font-size: 70%;"> “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” Richard Feynman </span> </div> </div> <img src="http://nojsstats.appspot.com/UA-44497096-1/email.beinrohr.sk" moz-do-not-send="true" border="0" height="1" width="1"> </body> </html> --------------080101080506030805060300--
participants (2)
-
Allon Mureinik -
Ernest Beinrohr