Re: [Xen-users] restoring files to guest domains

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

Jared wrote:
> On 03/06/08 20:13, Nico Kadel-Garcia wrote:
> > Because you can *VERY QUICKLY* make a snapshot, even of a live 
> > environment, and then do more painful or slower options on that 
> > snapshot while the live fileystem is doing whatever it needs to do. 
> > This includes making tape backups, analyzing the data of a database 
> > without having to lock it while doing your own work and having it 
> > change under you, etc.
> Oh, I fully understand that part (the 'read' part).  That's exactly 
> what attracted me to this solution to begin with.  It's the 'write' 
> part that didn't really make a whole lot of sense, but that's 
> apparently just because I'm not trying to use it as it's meant to be 
> used.
Well, you can write to it too, but only as much as you've set aside 
image space for when doing the snapshot. It's also useful for building 
OS images: snapshot a good system, tweak the snapshot as needed, and 
copy *THAT* to a new system. SELinux can be an issue, but I've worked 
around it by deleting and re-installing SELinux on the fly on the target 
system.
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