[Xen-users] Disk support for live migration and mirroring

[Brock Palen <brockp@xxxxxxxxx>]

I have two systems on a the way to replace a ailing xen-2.0.7 box.   
They will be brought current with xen-3xx .   The systems need to  
beable to have uptodate copys of all information in the event that  
one of the nodes fails.  Allowing the DomU's from the failed box to  
be started on the remaining box.  A basic HA cluster.
I figured I could use DRDB to mirror partitions and then export them  
via nfs and use heartbeat to move who is the active NFS server.  But  
this would require me to use sparse files from disk images.   Has  
anyone used anything similar?
Its a simple set up, I do not have shared storage so i have to make  
due with DRDB or NBD+MD0  but im open to anything.  Is there a better  
way given the hardware to provide this time of availability?
Brock Palen
Center for Advanced Computing
brockp@xxxxxxxxx
(734)936-1985



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