[CentOS] best practices in using shared storage for XEN Virtual Machines and auto-failover?

Sun Oct 17 18:09:16 UTC 2010
Rudi Ahlers <Rudi at SoftDux.com>

On Fri, Oct 15, 2010 at 11:03 PM, Pasi Kärkkäinen <pasik at iki.fi> wrote:
> On Thu, Oct 14, 2010 at 01:25:01PM +0200, Rudi Ahlers wrote:
>> Hi all,
>> Can anyone pleas tell me what would be best practice to use shared
>> storage with virtual machines, especially when it involved high
>> availability / automated failover between 2 XEN servers?
>> i.e. if I setup 2x identical XEN servers, each with say 16GB RAM, 4x
>> 1GB NIC's, etc. Then I need the xen domU's to auto failover between
>> the 2 servers if either goes down (hardware failure / overload /
>> kernel updates / etc).
>> What is the best way to connect a NAS / SAN to these 2 servers for
>> this kind of setup to work flawlessly? The NAS can export iSCSI, NFS,
>> SMB, etc. I'm sure I could even use ATAOE if needed
> You could use Citrix XenServer, or XCP.. they're based on CentOS 5,
> and they support shared storage with iSCSI out-of-the-box on multi-host pools.
> If you go with the "plain" CentOS route you need to script/manage it yourself.
> -- Pasi

Did you even read my whole message?

Kind Regards
Rudi Ahlers

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