I think so though have not tried myself.
This may help.
https://communities.netapp.com/thread/22419
From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Jeff Cleverley Sent: Friday, May 31, 2013 3:10 PM To: Toasters@teaparty.net Subject: SAS port speeds
Greetings,
We have a stack of DS4243 shelves for a NearStore running SATA/BSAS drives. We will be getting some DS4246 with the 4TB FSAS drives. I know it is supported to put them in the same stack, my understanding is everything in the stack will drop to 3 GB/s speed.
Since the HBAs run 2 ports on one chip, does that one chip control the speed for both ports A/B, or are they separate?
Thanks,
Jeff
-- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611