Craig White wrote:
> On Sat, 2007-01-13 at 16:30 -0500, Stephen Harris wrote:
>
>> On Sat, Jan 13, 2007 at 02:18:12PM -0700, Craig White wrote:
>>
>>> /dev/hda6:
>>> Timing buffered disk reads: 4 MB in 3.63 seconds = 1.10 MB/sec
>>>
>> What does "hdparm -i /dev/hda" say?
>>
> ----
> # hdparm -i /dev/hda
>
> /dev/hda:
>
> Model=WDC WD800JB-00JJA0, FwRev=05.01C05, SerialNo=WD-WCAM92819556
> Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs
> FmtGapReq }
> RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=66
> BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
> 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 pio3 pio4
> DMA modes: mdma0 mdma1 mdma2
> UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
> AdvancedPM=no WriteCache=enabled
> Drive conforms to: device does not report version:
>
> * signifies the current active mode
>
phew, something is *way* wrong. this is from a p3-450Mhz RHL 6.3
system I have at home, ancient Intel 440BX motherboard, and an ancient
IBM Deskstar 25GB 5400rpm drive.
# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 64 MB in 4.44 seconds = 14.41 MB/sec
# hdparm -i /dev/hda
/dev/hda:
Model=IBM-DJNA-352500, FwRev=J51OA30K, SerialNo=GW0GWFD6488
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34
BuffType=3(DualPortCache), BuffSize=1966kB, MaxMultSect=16, MultSect=16
DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=2
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=49981680
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=on/off, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 *mode2 mode3 mode4
# uname -a
Linux hogranch.com 2.2.24-6.2.3 #1 Fri Mar 14 08:41:15 EST 2003 i686 unknown
here's a p3 866Mhz running CentOS 4 on a crappy i810e (old dell
optiplex) w/ an old Seagate 10GB 7200rpm
# uname -a
Linux svfis-linux1 2.6.9-42.0.3.EL #1 Fri Oct 6 05:59:54 CDT 2006 i686
i686 i386 GNU/Linux
# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 82 MB in 3.05 seconds = 26.92 MB/sec
# hdparm -i /dev/hda
/dev/hda:
Model=ST310210A, FwRev=3.17, SerialNo=3CM0T2X9
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=19925880
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
AdvancedPM=no WriteCache=enabled
Drive conforms to: device does not report version: 1 2 3 4
* signifies the current active mode
and, a IBM BladeCenter Xeon 2.8Ghz w/ a 2.5" SCSI 36GB...
# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 160 MB in 3.20 seconds = 50.01 MB/sec