freebsd-stable  

Re: panic - sleeping thread on FreeBSD 8.0-stable / amd64

Torfinn Ingolfsen
Sat, 13 Mar 2010 11:40:47 -0800

On Sat, 13 Mar 2010 09:47:22 -0800
Jeremy Chadwick <free...@jdc.parodius.com> wrote:

> How do you tune the thresholds for the temperature or fan?  If they're
> DIP switches, then chances are SAF-TE or SES-2 aren't involved and it's
> probably just some cheap/generic logic chip that does the work.

There is a switch for the temp. The fan can't be adjusted. Luckily it is quite 
quiet.

> Is it a 4-pin connector?  If so, what the manual is (horribly) trying to
> document is probably an SGPIO connector.

Nope, eight pin. I've scanned the manual and put it up at the page for the 
machine[1],
in case anyone have a need for it.

> SGPIO is a 4-pin connector which connects a SATA/SAS enclosure to a
> SATA/SAS HBA (controller) so that the two have a direct way to signal
> that a disk has physically failed -- otherwise, the controller has to
> make guesses about the state of things, and timeouts can take a while.
> 
> SGPIO can also be used to provide other things; it's a generic
> communication interface with an official specification.

This one seems  much more simple; one signal (two pins) per drive.

References:
1) http://sites.google.com/site/tingox/ga-ma74gm-s2h
-- 
Torfinn

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