[linux-lvm] A little Cluster/Newbie help pls!

[Greg Freemyer]

 >>  As a side note, there is OpenGFS ( i don't know where it is in
 >>  alpha/beta release, but it is open source).

Ignoring SPOF issues, I would say it is beta quality at best.

To handle the SPOFs:
    You must use an external RAID controller.  ($$)
    You have to setup a HA cluster to run the lockserver.  I don't know if transparent failover can be achieved.