Hi all, 
 Leann Ogasawara 

Is there possibility of some of the problem might be due to the libata
driver

http://ata.wiki.kernel.org/index.php/Software_status

[quote]

 PATA support

libata is not specific to Serial ATA. It works for Parallel ATA (a.k.a.
IDE) as well. Certain SATA controllers such as Promise and SiS include
PATA ports on their SATA controllers.

libata has gained full support for PATA, including older chipsets and
devices with buggy/problematic designs. Alan Cox has done a lot of work
on this. PATA is be fully supported, alongside SATA. libata PATA drivers
exist for almost all PATA chipsets.

libata PATA drivers will not be turned on by default for a long time, to
avoid conflicts with CONFIG_IDE (the traditional IDE driver).

[/quote]

I got this while I was trying

$ sudo hdparm -c1 /dev/sda

/dev/sda:
 setting 32-bit IO_support flag to 1
 HDIO_SET_32BIT failed: Invalid argument
 IO_support    =  0 (default) 

This is how my drive stacks up . This is a seagate 160 GiB

$ sudo hdparm -i /dev/sda
[sudo] password for shirish: 

/dev/sda:

 Model=ST3160021A                              , FwRev=8.01    , 
SerialNo=4JS26D4P            
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=?16?
 CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=312581808
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:  ATA/ATAPI-1,2,3,4,5,6

 * signifies the current active mode

-- 
poor performance hard disk IDE
https://bugs.launchpad.net/bugs/96693
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