%META:TOPICINFO{author="ChrisBartram" date="1196390924" format="1.1" version="1.1"}%
%META:TOPICPARENT{name="Hp3000DiscDrives"}%
---+ RAID options for the HP3000 System Disc (ldev 1)

RAID options for your HP3000 depend on the model of the system more than the Operating System version. 
The HP3000 has never support software mirroring for the system disc (only user volumes), so options for an kind of RAID solution for the system disc strictly require a hardware solution.

If you have an A-class or an N-class HP3000 (which supports native fibre channel) then you are basically free to utilize many modern disc array solutions for ALL your discs - including the system disc. VA7xxx or XPxxx arrays are attractive (and fast) options when going native fibre.

For non A/N class machines, you can utilize one of the fibre based arrays, but you will require a A5814A-003 fibre to scsi bridge in order to be able to boot from the array. This can be a costly (and somewhat complicated) setup.

For all other HP3000 systems one of the FW-SCSI compatible arrays are your only choices. First choice would be a Mod 10 or Mod 20 array (difference being the number of discs they hold; 10 or 20). Next choice would be an !AutoRaid 12H unit. The Mod 10/20 units will also work with either single or a dual path FWSCSI; the !AutoRaid unit only supports a single path FWSCSI connection.

-- Main.ChrisBartram - 30 Nov 2007