From: John R Pierce Sent: February 3, 2011 17:14 > On 02/03/11 5:06 PM, Hugh E Cruickshank wrote: > > > > I will reconsider the need for all three arrays and see if I can go > > with the PCI-X cards. > > If this is SAS stuff, you can generally daisy chain a few trays of > drives, at the expensive of total available IO bandwidth (eg, fewer > SAS channels are being shared by more drives) Unfortunately it is SCSI 3 (Ultra320) which, in itself, is "chainable" however I believe that there may be a limitation based on the SCSI ID of the individual drives. I will have to do some experimentation to see if this is possible. Thanks for your suggestion. It is not one I had thought of as I am so used to limiting one array to one controller. Regards, Hugh -- Hugh E Cruickshank, Forward Software, www.forward-software.com