Re: [Xen-users] Sharing space on a SAN?

[Maximilian Wilhelm <max@xxxxxxxxxxx>]

Anno domini 2008 James Pifer scripsit:

> I have several SLES 10 SP1 xen servers. Right now each one has it's own
> internal disks, or has space on our SAN. I would like to be able to xm
> migrate VMs between my xen servers. Everything I've read so far talks
> about all the xen servers having network access to the VMs. 

> Is it possible to use a SAN for this? We can assign the same vdisk to
> multiple hosts, but not sure what would be required on the dom0's to all
> use the same disk for storage of their domU's. 

> We do something similar with oracle, where we have a cluster of linux
> machines, but from what I've gathered Oracle does something special
> allowing all the systems to share the data vdisk. I was not part of that
> installation, so I'm not sure exactly how it's setup.

> Anyone know if sharing a virtual disk on a SAN is possible with xen?
> What's required to make it work?

Sure.
Have a look at CLVM and/or EVMS.

If you are using image files file systems like GFS an OCFS2 maybe
interesting, too.

Ciao
Max
-- 
        Follow the white penguin.

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