<div dir="ltr">In other words, nothing to be so concerned, at all...<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-07-28 15:08 GMT-03:00 Adam Thompson <span dir="ltr"><<a href="mailto:athompso@athompso.net" target="_blank">athompso@athompso.net</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>You'll get what's called "crash-consistent", which means the filesystem and database both have to do a consistency check and replay or rollback their journals.<br>
This *usually* works automatically, but many things can cause problems.<br>
Remember that restoring a snapshot is almost exactly equivalent to pulling the plug on a server and then rebooting it (minus the risk of writing corrupt data during the handful of milliseconds the system keeps running with insufficient power)... In other words, if you kill -9'd the KVM process and restarted it, you'd be in exactly the same situation as when restoring a snapshot.<br>
So if your software stack usually handles that kind of failure, it'll also usually handle snapshots properly. Most systems & software do, nowadays, including ext3 and MySQL.<br>
-Adam<br><br><div class="gmail_quote"><div><div class="h5">On July 28, 2014 12:56:45 PM CDT, "Luis G. Coralle" <<a href="mailto:luiscoralle@fi.uncoma.edu.ar" target="_blank">luiscoralle@fi.uncoma.edu.ar</a>> wrote:</div>
</div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div class="h5">
<div dir="ltr"><div><div>Hi all </div><div><br></div><div>I have a question regarding backups. </div><div>Assuming a traditional installation of 3.2 pve a linux vm with qcow2, saved on disk /dev/mapper/pve-data on /var/lib/vz type ext3 </div>
<div>Assuming I have mysql running on the VM with a large DB. What happens when a backup is made in snapshot mode of the vm? <br></div><div>When the backup is restored, the DB is in a consistent state?</div></div><div><br>
</div><div><br></div>-- <div>Luis G. Coralle<br>
</div></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr"><div>Obrigado</div><div><br></div><div>Cordialmente</div><div><br></div><div>Gilberto Ferreira</div><div><br><img src="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQh4Erzr4UMa0fHj33krlB24nJaqXvjEKtJVBebkpuLPh5HcWigtw"><br>
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