harddrive and buffsize=0KB

binuts · 02-10-2006, 03:05 AM

Hello,

Sorry for my bad English

I have a question because in my system when i have some access to the harddrive, the system lag a long time.

This is the result of a drive test:

Quote:

root@casimir:/home/nicolas# hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 2496 MB in 2.00 seconds = 1247.57 MB/sec
Timing buffered disk reads: 100 MB in 3.03 seconds = 32.98 MB/sec

Quote:

root@casimir:/home/nicolas# hdparm -i /dev/hda

/dev/hda:

Model=TOSHIBA MK8026GAX, FwRev=PA001G, SerialNo=35DO2167T
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=48
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=8
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: device does not report version:

* signifies the current active mode

The second test report a buffer of 0KB ????? but my disk have 8Mo of buffer.
Did you mean it's the problem or not.
Thanks.

bulliver · 02-10-2006, 02:32 PM

Quote:

The second test report a buffer of 0KB ????? but my disk have 8Mo of buffer.
Did you mean it's the problem or not.

Yes, there is definitely something wrong with that. Is it an old drive? It may be failing. Is it new? Send it back for a replacement. Are you using the correct driver for your ide bus?

You can use SMART to see if the drive is failing:
http://www.linuxjournal.com/article/6983