Thanks All, Alas more of a lurker in the VMS Forum these days. We do have a mixed architecture cluster here but it's sadly on the way out and I just keep it ticking over. The SAN's are for the Windows & Solaris boxes and I'm left with the HSD's to provide storage! Still, I've still go the best uptimes! Can't beat one of the local companies though, HP reps went to the 5000 day uptime celebration! I know it's not the record but pretty good all the same.