[Xen-users] Sharing space on a SAN?

[James Pifer <jep@xxxxxxxxxxxxxxxx>]

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?

Thanks,
James


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