This is what I am doing for my xen vm's currently and so far I have not seen any issues with it.

I enable sysrq on the vm

xm sysrq <DomU> s
xm pause <DomU>
create xnapshot
xm unpause <DomU>

Richard

--- On Tue, 6/30/09, Stephen <cryptworks@gmail.com> wrote:

> From: Stephen <cryptworks@gmail.com>
> Subject: Xenserver backups
> To: "Main PLUG discussion list" <plug-discuss@lists.plug.phoenix.az.us>
> Date: Tuesday, June 30, 2009, 8:53 AM
> I am still looking at a way to keep
> backups live of my virtual servers
> and i have a backups server planned but the question is
> backing up the
> VM's
> 
> The main question here is while running xenserver can i use
> rsync to
> keep the directory where the VM's live in sync with my
> backup server..
> at least once daily? via combination of snapshot or
> somesuch
> 
> 
> 
> -- 
> A mouse trap, placed on top of your alarm clock, will
> prevent you from
> rolling over and going back to sleep after you hit the
> snooze button.
> 
> Stephen
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