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xen-users
Re: [Xen-users] Re: cow implementation
lvm snapshots (at least in combination with xen) will sooner or later eat your
data. at least this is my experience.
It would have a good performance and should run very well in theory, but my
tests showed me thats its not usable right now.
If I create a lvm snapshot of a domainU and mount it in domain0, then I can
access the data of the snapshot. But if I try to backup the data (for example
with rsync or tar) then most of the time the corresponding domainU seems to
hang. After the backup is completed the domainU seems to work again. But for
about 50% of the time after the backup was completed the domainU crashed in
the next minutes after deleting the snapshot.
It is not always crashing as well as not alawys the domainU seems to hang, but
most of the time.
I read also some reports from other people having this kind of problems too.
--Ralph
Am Dienstag, 10. Januar 2006 12:47 schrieb Sipos Ferenc:
> Hi.
>
> > get any worse than LVM snapshots, so I'm hopeful.
>
> Can someone please give me hints on performance/stability/scalability
> issues of backing domUs with LVM snapshot files?
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