* Hemmann, Volker Armin ([EMAIL PROTECTED]) wrote: > On Sunday 08 June 2003 05:38, Stroller wrote: > > On 8/6/03 3:05 am, "Dhruba Bandopadhyay" <[EMAIL PROTECTED]> wrote: > > > On Sat, 2003-06-07 at 20:06, Stroller wrote:
============================> snip <==========================
> > [EMAIL PROTECTED] stroller $ sudo /sbin/hdparm -i /dev/hda
> >
> > /dev/hda:
> >
> > Model=IBM-DARA-212000, FwRev=AR4OA53A, SerialNo=AH0AHJ80443
> > Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
> > RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
> > BuffType=DualPortCache, BuffSize=418kB, MaxMultSect=16, MultSect=16
> > CurCHS=17475/15/63, CurSects=16513875, LBA=yes, LBAsects=23579136
> > 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=yes: mode=0x80 (128) WriteCache=enabled
> > Drive conforms to: ATA/ATAPI-4 T13 1153D revision 17: 1 2 3 4
> >
> > [EMAIL PROTECTED] stroller $
> >
> > Maybe this hard-drive is just a particularly slow one, as Volker
> > suggests..? But is seems SO considerably much slower than all the other
> > hdparm results I've seen posted. 8-[
How about this for slow:
iris root # hdparm -Tt /dev/hde
/dev/hde:
Timing buffer-cache reads: 128 MB in 1.25 seconds =102.40 MB/sec
Timing buffered disk reads: 64 MB in 1.75 seconds = 36.47 MB/sec
iris root # hdparm -Tt /dev/hdf
/dev/hdf:
Timing buffer-cache reads: -3008 MB in 0.00 seconds = -inf kB/sec
Timing buffered disk reads: -1504 MB in 0.00 seconds = -inf kB/sec
Hmm.. suspicious results: probably not enough free memory for a proper test.
Both drives are hooked to an HT370 RAID controller (onboard). RAID is
not used, just the UDMA/100 interface. hde is 2 years old, and hdf is
two weeks old. Something odd is going on here; I have 512M RAM and only
about 256M of that in use. Both drives have identical settings:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 1 (on)
readonly = 0 (off)
readahead = 8 (on)
In fact, the drives are idential WD drives, except that hde the 40G version,
and hdf is the 80G version.
--
Leslie C. Miller
LHH 447
Dept. of Philosophy
Mesa State College
Grand Junction, CO 81506
--------------------------------------------------------------------
GnuPG KeyID F5F77F94
Key fingerprint = EA66 E27F 1A8D 0316 B4D0 E437 3AE5 61AF F5F7 7F94
gpg --keyserver pgp.mit.edu --recv-keys F5F77F94
--------------------------------------------------------------------
pgp00000.pgp
Description: PGP signature
