[OmniOS-discuss] PCI-e x8 only running x4

[Bob Friesenhahn]

On Tue, 24 Jan 2017, Matej Žerovnik wrote:

> I’m running LSI 9300-8e for the last 6 months in producution without 
> problems. I have Supermicro JBOD attached to it with SAS drives in 
> it. So, 12Gb/s controller and drives and 6Gb/s backplace.

Perhaps SuperMicro is not eager to re-qualify their existing passive 
hardware for 12Gb/s since they are mostly intent on selling 
expander-based hardware which does need to be updated for 12Gb/s.

SAS is supposed to be good for something like 30 feet so only a poorly 
laid-out passive backplane would have problems due to the higher 
speed.

Google and WikiPedia were not able to shed any light on this issue so 
I just took a chance.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/