[OmniOS-discuss] Configuration sanity checking

[Bob Friesenhahn]

On Fri, 19 Feb 2016, Peter Tribble wrote:
> 
> So that was an interesting question, and I had to go away and investigate further.
> So the way this works is that the system has a 24-slot disk backplane. The disks plug
> into the backplane; you have to connect the backplane as a unit to something, which
> is where the HBA comes in. It doesn't look like there's a way to wire an individual drive
> to an onboard SATA port.

These really dense 2U systems are often a pre-packaged (or close to 
it) system from SuperMicro and you get what they (SuperMicro) are able 
to build.  The product page usually makes note of that. Your 
integrator/builder is only able to make relatively small changes. 
Direct wiring 24 drives in a 2U system would be crazy.

With SAS driving SATA, it seems like you would still need/want one SAS 
channel per drive and 24 channels is a lot.  It sounds like you are 
getting only 8 SAS channels.

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