Could the problem be related to this bug:

http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6793353

I'm testing setting the maximum payload size as a workaround, as noted
in the bug notes.



On Wed, Mar 11, 2009 at 3:14 PM, Blake <blake.ir...@gmail.com> wrote:
> I think that TMC Research is the company that designed the
> Supermicro-branded controller card that has the Marvell SATA
> controller chip on it.  Googling around I see connections between
> Supermicro and TMC.
>
> This is the card:
>
> http://www.supermicro.com/products/accessories/addon/AOC-SAT2-MV8.cfm
>
> On Wed, Mar 11, 2009 at 3:08 PM, Remco Lengers <re...@lengers.com> wrote:
>> Something is not right in the IO space. The messages talk about
>>
>> vendor ID = 11AB
>>
>> 0x11AB  Marvell Semiconductor
>>
>> TMC Research
>>
>> Vendor Id: 0x1030
>> Short Name: TMC
>>
>> Does "fmdump -eV" give any clue when the box comes back up?
>>
>> ..Remco
>>
>>
>> Blake wrote:
>>>
>>> I'm attaching a screenshot of the console just before reboot.  The
>>> dump doesn't seem to be working, or savecore isn't working.
>>>
>>> On Wed, Mar 11, 2009 at 11:33 AM, Blake <blake.ir...@gmail.com> wrote:
>>>>
>>>> I'm working on testing this some more by doing a savecore -L right
>>>> after I start the copy.
>>>>
>>>> BTW, I'm copying to a raidz2 of only 5 disks, not 16 (the chassis
>>>> supports 16, but isn't fully populated).
>>>>
>>>> So far as I know, there is no spinup happening - these are not RAID
>>>> controllers, just dumb SATA JBOD controllers, so I don't think they
>>>> control drive spin in any particular way.  Correct me if I'm wrong, of
>>>> course.
>>>>
>>>>
>>>>
>>>> On Wed, Mar 11, 2009 at 11:23 AM, Marc Bevand <m.bev...@gmail.com> wrote:
>>>>>
>>>>> The copy operation will make all the disks start seeking at the same
>>>>> time and
>>>>> will make your CPU activity jump to a significant percentage to compute
>>>>> the
>>>>> ZFS checksum and RAIDZ parity. I think you could be overloading your PSU
>>>>> because of the sudden increase in power consumption...
>>>>>
>>>>> However if you are *not* using SATA staggered spin-up, then the above
>>>>> theory
>>>>> is unlikely because spinning up consumes much more power than when
>>>>> seeking.
>>>>> So, in a sense, a successful boot proves your PSU is powerful enough.
>>>>>
>>>>> Trying reproducing the problem by copying data on a smaller number of
>>>>> disks.
>>>>> You tried 2 and 16. Try 8.
>>>>>
>>>>> -marc
>>>>>
>>>>> _______________________________________________
>>>>> zfs-discuss mailing list
>>>>> zfs-discuss@opensolaris.org
>>>>> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>>>>>
>>>>
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>>>>
>>>>
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>>>>
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>>
>
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