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

Dirk dirk.schulz at kinzesberg.de
Tue Oct 19 12:02:21 EDT 2010

  I am very happy with RedHat Cluster Suite and GFS2 on a shared SAN 
storage (i.e. scsi block device), since RedHat Cluster Suite not only 
handles the file systems but also looks to the availability of the xen 
vms (live migration, restart, etc.).


Am 14.10.10 13:25, schrieb Rudi Ahlers:
> 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

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