[OpenIndiana-discuss] OI and chassis/jbod support?

[Rich]

Drive locator LEDs on this particular model are driven via either
SGPIO over the iPASS connectors or via dedicated ports on the
backplane running to {motherboard, daughter card} - the former is the
case here.

The chassis locator, on the other hand, is almost certainly configured
as you describe.

[Having poked around a bit, I found that I can force LED blinking per
SAS port (note that I didn't say SAS lane - all drives wired to said
port blink or fail to blink at once, and no permutation of SGPIO
register state that I found changes this).]

- Rich

On Mon, Jul 2, 2012 at 11:30 PM, Richard Elling
<richard.elling at richardelling.com> wrote:
> On Jul 2, 2012, at 2:49 PM, Rich wrote:
>
>> Hm, we appear to have been discussing a different problem, which is fascinating.
>>
>> I have a number of devices which are in the Supermicro SC846A-R1200
>> chassis - which has no expanders, just 6 SFF-8087 ports on it, running
>> into LSI 9201-16i controllers.
>>
>> Fascinatingly, attempting to issue a sas2ircu [card] locate A:B on
>> reports success, but no LEDs blinked at all. I also see no SES devices
>> to speak of, though the device purports to support SES-2 management.
>
> IIRC, the chassis locator LEDs are driven from the mobo option, not from
> the SAS backplane. It wouldn't surprise me if the locator was not wired, or
> wired to an internal LED, depending on the exact model.
>
> NB, Supermicro gear is very flexible and many options can be [re]wired by hand
> and thus can be inconsistently configured in the field. It is a good habit to
> verify disk serial numbers to slot maps as you install disks.
>  -- richard
>
> --
> ZFS Performance and Training
> Richard.Elling at RichardElling.com
> +1-760-896-4422
>
>
>
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