On Jan 15, 2012, at 3:52 AM, John R Pierce wrote:
On 01/14/12 2:32 PM, Vahan Yerkanian wrote:
Going back to the LSI website to check if these 9750 have an option to link their caches into one...
I was curious, *all* the LSI sAS RAID cards say 'single controller multipathing', both the megaraid cards and the 3ware cards (I'm setting up a server that has a 9260-8i now). I looked at their optional software, and none of it implements any sort of multi-controller failover.
If you have split or multiple storage backplanes/enclosures, I"d split the disks between the two cards, and multipath between each controller and its respective disks. this will take another set of SAS cables, of course
At the moment I have two 9750-4i installed, each having a sff8087 x4 cable going to the same backplane containing dual-port sas disks.
This was supposed to be a load balanced, multi-controller failover setup.