[Xen-users] Re: FW: Xen Backups

[Christian Tramnitz <chris.ace@xxxxxxx>]

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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