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

[Florian Manschwetus <florianmanschwetus@xxxxxx>]

Maximilian Wilhelm schrieb:
> 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
Or just give each domU a directly raw mapped volume on the SAN.

This is the Solution here (using solaris nevada CE + sun xvm).
Live migration of linux PV works quite fine.

Florian

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