[CentOS] best practices in using shared storage for XEN Virtual Machines and auto-failover?
Pasi Kärkkäinen
pasik at iki.fiFri Oct 15 21:03:30 UTC 2010
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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
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