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[Xen-users] Re: FW: Xen Backups

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Re: FW: Xen Backups
From: Christian Tramnitz <chris.ace@xxxxxxx>
Date: Sun, 01 Jun 2008 15:33:32 +0200
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I guess most people would like to avoid the necessary downtime.
On the other hand, when doing live-snapshots (i.e. LVM snapshot target),
live-data may be corrupt (open file handles, databases)...


Best regards,
   Christian

James Alspach wrote:
How do most people backup their VM’s? I understand that the suggested method right now is to install your backup client just as you would if you were backing up a physical server. It just feels like you should be able to snapshot the entire VM instead of worrying about just the data.

For instance, how difficult it would be to script taking a VM offline, exporting it and then bringing it back online. To me this sounds like a good way to backup your VM’s (as long as you can stand them being offline for some amount of time while they export). If you could back up this way recovering from a disaster should be fairly painless. Just reinstall Xensource, hook it back up to the SAN and import the VM’s…done. What am I missing? Is it the size of the VM’s that keeps this from being viable?

Thanks for your help;

James


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