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xen-devel
RE: [Xen-devel] Making snapshot of logical volumes handling HVM domUcaus
> > Another thing I notice, which might be of help to people who
> > understand this better then I do, in my backup-script, sometimes
step
> > "5" fails because the domU hasn't noticed the device is attached
> > again when I try to mount it. The domU-commands are run using
> > SSH-connections.
>
> That probably just has to do with variations in how long it
takes
> the guest kernel to poll or be notified of device changes, and how
long
> it takes for its udev to create the device files and whatnot.
> Introducing some sanity checks or just a longer delay in your backup
> script would likely get around that problem. (I could be wrong,
though)
>
I found that too. I just put the mount in a loop, breaking out when then
device actually appears in the DomU. It's just a timing thing and I
don't think its relevant to the problem at hand.
James
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