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