[ANNOUNCEMENT] Wiki for discussing P35/IHC9(R)/SATA issues set up

[韓家標 Bill Hacker]

Rusty Nejdl wrote:
>>> Does SATA300, but has the same "feature" as the OP's Seagate drive:
>>> a small jumper that limits the drive to SATA150 unless removed.
>>> See below PDF.
>>>
>>> http://www.seagate.com/ww/v/index.jsp?vgnextoid=e2af99f4fa74c010VgnVCM100000dd04090aRCRD&locale=en-US
>>> http://www.seagate.com/staticfiles/support/disc/manuals/desktop/Barracuda%207200.10/100402371h.pdf
>>>
>> Jeremy,
>>
>> Thanks!  Like Aryeh, I missed the jumper.  I'll test this out tonight when
>> I get home.
>>
>> Rusty
>>
> 
> I removed the jumpers per the doc and unfortunately, there was no change:
> 
> ad12: 715404MB <Seagate ST3750640AS 3.AAK> at ata6-master SATA150
> ad16: 715404MB <Seagate ST3750640AS 3.AAK> at ata8-master SATA150
> 
> ATA channel 5:
>     Master: ad10 <WDC WD1500ADFD-00NLR1/20.07P20> Serial ATA v1.0
>     Slave:       no device present
> ATA channel 6:
>     Master: ad12 <ST3750640AS/3.AAK> Serial ATA II
>     Slave:       no device present
> ATA channel 7:
>     Master: acd0 <LITE-ON DVDRW LH-20A1L/BL01> Serial ATA v1.0
>     Slave:       no device present
> ATA channel 8:
>     Master: ad16 <ST3750640AS/3.AAK> Serial ATA II
>     Slave:       no device present
> 
> It seems there is either a configuration I'm missing or the kernel is not
> picking this up properly.
> 
> Sincerely,
> Rusty Nejdl
> 

What is being reported quite aside, have you (or anyone else) run any tests to 
see if there is a before/after difference in actual performance?

It wouldn't be the first time that the messages didn't match the reality.

Bill