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xen-users
Re: [Xen-users] can I clone a runiung domU?
Rudi Ahlers wrote:
Fajar A. Nugraha wrote:
Using LVM you should be able to make a snapshot of the filesystem which
should be at least as consistent (integrity wise) as if you'd done an
'xm destroy' on the domain.
A neat way to do that is if you use zfs-backed storage, either
directly (using Sun's xVM) or having solaris export the volume over
iscsi to linux box. The "clone" process for zfs is two simple
commands : "zfs snanpshot" and "zfs clone", which is almost instaneous.
Sure, but I don't. I'm using CentOS as OS, with ext3 :) So, I need to
work with what I have
In that case James' suggestion is probably your best bet. If you use
lvm-backed storage for domU :
- lvm snapshot on running domU's LVM, to get a consistent state.
- dd from the snapshot to a new LV
- destroy snapshot
As for optimum block size for dd, I think the default PE size for linux
LVM is 4MB, so you might want to try that.
Regards,
Fajar
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