Scandisk

[Warren Togami]

Your different partitions would have different speeds because the fastest
portion of all hard disks is at the beginning of the drive.  Hard disks
steadily become slower as you get near the end, some even half the speed.
Search for "HDTACH" on Google and you'll find graphs of this performance
behavior of disks.

Usually "hdparm -t /dev/hda" testing only the beginning of the drive is
sufficient as a speed test.  If you are trying to stress test the entire
hard drive for defects, there are better utilities out there for doing this.
I'll look around for tools that do this tonight.

----- Original Message -----
From: "Rodney Kanno" <pepe65 at hawaii.rr.com>
To: "Linux & Unix Advocates & Users" <luau at list.luau.hi.net>
Sent: Wednesday, September 19, 2001 1:28 AM
Subject: [luau] Re: Scandisk


> Hi Warren,
>
> Here is the output of uname -a
>
> Linux I8L1Y7 2.4.3-20mdk #1 Sun Apr 15 23:03:10 CEST 2001 i686 unknown
>
> I noticed last night when I booted up into Windows, that everything seemed
to
> be fine. Windows didn't seem to be any slower than normal. Would the
> motherboard and or cooling still be suspect?
>
> I tried doing multiple tests on hda, hda5 and hda7. hda gave me ther same
> results each time I tested it. however hda5 and hda7 varied. For one
instead
> of being able to transfer 64MB in 2.89 seconds at 22.15MB/sec like hda, it
> ranged between 3.20 - 3.59 seconds and the rate of transfer 17.83 -
20MB/sec.
> I will check the cooling and the fic website for any updates tonight.
>
> Thanks,
> Rodney
> > >
> > > /dev/hda5:
> > >  Timing buffered disk reads:  64 MB in  3.20 seconds = 20.00 MB/sec
> > >
> > > /dev/hda6:
> > >  Timing buffered disk reads:  64 MB in  3.59 seconds = 17.83 MB/sec
> > >
> > > /dev/hda7:
> > >  Timing buffered disk reads:  64 MB in  3.59 seconds = 17.83 MB/sec
> > >
> > > DMA is enabled.
> > > Motherboard is 1stMainboard SD11 www.fic.com.tw
> > >
> > > Let me know if you need anymore info.
> > >
> > > Thanks,
> > > Rodney
> >