On Wednesday 13 June 2001 00:46, civileme wrote:
> On Tuesday 12 June 2001 16:50, Scott Pletcher wrote:
> > Hi All,
> > I've got some troublesome readings from two identical hard
> > drives set up the same. Does anyone know why they are
> > performing so differently? I suppose hda may be bad, but I
> > was hoping to find some other way to test this. Thanks!
> >
> > Scott
> >
> > ----THE DATA
> >
> > Here are the hard drives:
> > hda: Maxtor 52049H4, ATA DISK drive (master ide0)
> > hdb: Maxtor 52049H4, ATA DISK drive (slave ide0)
> >
> > Running hdparm I get:
> > [root@haldane scott]# hdparm -Tt /dev/hda
> >
> > /dev/hda:
> > Timing buffer-cache reads: 128 MB in 0.87 seconds =147.13
> > MB/sec Timing buffered disk reads: 64 MB in 31.17 seconds =
> > 2.05 MB/sec
> >
> > [root@haldane scott]# hdparm -Tt /dev/hdb
> >
> > /dev/hdb:
> > Timing buffer-cache reads: 128 MB in 0.85 seconds =150.59
> > MB/sec Timing buffered disk reads: 64 MB in 2.21 seconds =
> > 28.96 MB/sec [root@haldane scott]# hdparm /dev/hda
> >
> >
> > Here are the settings:
> > /dev/hda:
> > multcount = 16 (on)
> > I/O support = 3 (32-bit w/sync)
> > unmaskirq = 0 (off)
> > using_dma = 1 (on)
> > keepsettings = 0 (off)
> > nowerr = 0 (off)
> > readonly = 0 (off)
> > readahead = 8 (on)
> > geometry = 2482/255/63, sectors = 39882528, start = 0
> > [root@haldane scott]# hdparm /dev/hdb
> >
> > /dev/hdb:
> > multcount = 16 (on)
> > I/O support = 3 (32-bit w/sync)
> > unmaskirq = 0 (off)
> > using_dma = 1 (on)
> > keepsettings = 0 (off)
> > nowerr = 0 (off)
> > readonly = 0 (off)
> > readahead = 8 (on)
> > geometry = 2491/255/63, sectors = 40020624, start = 0
>
> if you are running 8.0, you might try this
>
> http://perso.mandrakesoft.com/~civileme/drakopt
>
> download the file drivedb2 and place it at /.drivedb
> download the file drakopt2 and put it anywhere
>
> Open a terminal
>
> log in to the directory where you downloaded drakopt2
>
> type
>
> ./drakopt2
>
> When it completes, your drives should be tuned.
>
> Drive hda seems to have a higher count of bad sectors from the
> factory, but draw no conclusions til you try drakopt.
>
> hdparm to have meaning should be run three times in a row
> without other programs perking along. The capital T on the test
> need not be used since it simply measures the bandwidth of your
> memory buffer.
>
Nice program Civileme, but...
[14:43 root@penguin:/home/peter]# ./drakopt2
Welcome to DrakOPT
Traceback (most recent call last):
File "./drakopt2", line 104, in ?
if uname[:2]!='2.4':
NameError: There is no variable named 'uname'
I know I have a 2.4 kernel so I comment lines 104-109.
Then it runs and gives...
Traceback (most recent call last):
File "./drakopt2", line 164, in ?
input=open('/.drivedb','r')
IOError: [Errno 2] No such file or directory: '/.drivedb'
So `mv /.drivedb2 /.drivedb` as root gets it working but it can't find my
drives in the database. I have...
Maxtor 96147H6
Maxtor 96098H8
Maxtor 54098U8
They are listed in /.drivedb but in uppercase, so I copied and added the
existing enties in proper case. Now it works OK. I suggest you add code to
check the database case-insensitive -- otherwise you'll end up with a huge
file.
--
Linux Mandrake release 8.0 (Traktopel) for i586
Linux 2.4.3-20mdk-win4lin-pnr, KDE: 2.1.2, Qt: 2.3.0
Uptime 16 hours 0 minutes
