Re: [CentOS] LSI MegaRAID 320-2E PCIe RAID Controller

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