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xen-users
RE: [Xen-users] best practices in using shared storage forXENVirtualMach
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Freddie Cash
> Sent: Thursday, October 14, 2010 11:38 AM
> To: xen-users
> Subject: Re: [Xen-users] best practices in using shared storage
> forXENVirtualMachines
> and auto-failover?
>
> > You don't need a clustered filesystem. You don't need a shared
> > filesystem at all. Just partition your shared block storage (with a
> > clustered logical volume manager if needed) and use a logical volume
> > for each domU image.
>
> Would you run the iSCSI initiator in the host and attach the block device to
> the guest?
> Or would you run the iSCSI initiator in the guest?
I like to do the former. That makes the guest easier--you don't have to figure
out things like modifying initrd to do boot-from-SAN.
> How does the migration from one host machine to another work with iSCSI?
No different than migration with any other shared storage. Just make sure each
dom0 has a working initiator, and is logged into the appropriate targets. If
your SAN has ACLs, you'll need to allow access from every possible dom0.
-Jeff
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