Jordan,

It looks like the port speeds are independent. I plugged some in on a 3270 and the A ports speeds were 3G (ds4243) and the B ports were showing 6G (ds4246).

Thanks,

Jeff

On Fri, Jun 7, 2013 at 9:55 AM, Jordan Slingerland < Jordan.Slingerland@independenthealth.com> wrote:

I think so though have not tried myself.****

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This may help.****

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https://communities.netapp.com/thread/22419****

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*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****

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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****