Re: Odd behavior of a "SAS-2" backplane with SGPIO commands

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On Mon, Sep 10, 2012 at 12:13 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> On Mon, Sep 10, 2012 at 12:07:45PM -0400, Rich wrote:
>> On Mon, Sep 10, 2012 at 12:04 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
>> > On Mon, Sep 10, 2012 at 06:01:42PM +0200, Emmanuel Florac wrote:
>> >> Le Mon, 10 Sep 2012 16:47:11 +0300
>> >> Pasi Kärkkäinen <pasik@xxxxxx> écrivait:
>> >>
>> >> > Any replies from Supermicro/LSI ?
>> >> >
>> >>
>> >> Only loosely related, but Supermicro replaced recently my 846E26 (dual
>> >> expander backplane) with 846E16 (single expander). Apparently they
>> >> gave up getting the E26 to work properly or something: LSI expander
>> >> firmware problem.
>> >>
>> >> In another (very large scale, high end) setup, many different 60 slots
>> >> 5 LSI expanders chassis had a general failure of the 5th drawer.
>> >> Another LSI SAS-2 expander firmware problem.
>> >>
>> >> I could start a rant about the evil of proprietary firmware, etc. You
>> >> get my meaning :)
>> >>
>> >
>> > Yeah, this is a good example why we're trying to get the LEDs working with
>> > direct attach (non-expander) backplanes :)
>> >
>> > -- Pasi
>> >
>>
>> I don't have anything useful for people, other than that they have
>> shown me an HBA firmware that fixes the LED problem but has other
>> problems they're still debugging.
>>
>> So there does exist code for this firmware which will fix this problem.
>>
>
> That's good to know! Let's hope the fix ends up in an official
> LSI HBA firmware update in not-so-distant future.
>
>> [I don't disagree on the evils of proprietary firmware, but this is
>> the hand I've been dealt, so.]
>>
>
> Yeah, there's still the proprietary LSI HBA firmware, but at least using
> direct-attach backplanes has one less :)
>
> Thanks!
>
> -- Pasi

Actually, the direct-attach backplanes have 3 "passive" AMI management
controller chips...which also, presumably, have embedded mutable
firmware.

- Rich
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