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Re: [Xen-users] Boot from OCFS2

Yes of course, the thing is, If the fs isn't clustering on that scsi
raid sys. it will destroy the fs if I connect with both servers. So my
try was, to format it with ocfs2! The second server is just a "backup"
server. So if the first one crashes, I can migrate the domu's easyli to
the second one. I could work with images, which are on the ocfs2
partition this would work, but images are not as felxible as lv's...
But I think i'm definitly on the wrong way now...


Am Donnerstag, den 03.07.2008, 09:42 -0500 schrieb Javier Guerra:
> On Thu, Jul 3, 2008 at 9:21 AM, Dominik Vogt <dominik.vogt@xxxxxxxxxxxx> 
> wrote:
> > I try to boot from a ocfs2 fs. so the whole system is on a LV which is
> > formated with ocfs2. I don't know if this possible... but I need a
> > clustring filesystem because I dont have isci or something else... just
> > 2 boxes which access the same scsi device...
> i don't know if there's any limitation in OCFS2 for booting, but i
> think GRUB, (and maybe PyGRUB) would have problems with that.  it may
> be easier to use host your kernel and initrd in Dom0, and make sure
> that initrd has all needed modules to correctly mount the root
> filesystem.
> of course, it would be FAR easier to use anything else (small ext3,
> big initrd, network booting, etc) as the root partition, and later
> mount the shared OCFS storage.
> also, keep in mind that two machines sharing the same root tree would
> interfere in lots of ways, no matter what filesystem you use, so be
> very sure that each machine has it's own root tree.  (you wouldn't
> want to share /var/log, or /var/run, eh?)
Dominik Vogt
Universität Bern
Institut für medizinische Lehre (IML)
Abteilung für Assessment und Evaluation (AAE)
Inselspital 37a
CH-3010 Bern

Phone: 031 632 3584
Mail: dominik.vogt@xxxxxxxxxxxx

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