Re: Hard Disk Performance

From: Bela Lubkin (belal_at_sco.com)
Date: 05/19/04


Date: Wed, 19 May 2004 20:23:05 GMT
To: scomsc@xenitec.ca

IanC wrote:

> Sorry Bela I could not get the WD Driver Supplement to load.

[onto OSR502]

> I downloaded it:-
>
> -rw-rw-rw- 1 root sys 1024 May 19 15:02 VOL.000.000
> -rw-rw-rw- 1 root sys 6656 May 19 15:02 VOL.000.001
> -rw-rw-rw- 1 root sys 8192 May 19 15:02 VOL.000.002
> -rw-rw-rw- 1 root sys 38400 May 19 15:02 VOL.000.003
> -rw-rw-rw- 1 root sys 207360 May 19 15:02 VOL.000.004
> -rw-rw-rw- 1 root sys 25600 May 19 15:02 VOL.000.005

> When I follow the instructions and try to install it I get an error
> message:-
> This software patch cannot be loaded with the Install New or Load
> )Software menu options. Please click on OK, then select Patch Management
> from the Software menu, and select Load Patch.
>
> If I try to apply it as a patch I get a different error message:-
>
> No components are eligible to be patched by SCO:wdpatch 1.1.0a
>
> I guess I am doing something wrong?

Only following my directions... I hadn't tried installing the supplement
on OSR502, just the driver. I now realize that the packaging of the "Wd
Driver Supplement" is incompatible with OSR502. It's incompatible on a
level that would be difficult to fix in the field.

Fortunately, the "wd Btld" contains exactly the same stuff, and
shouldn't have this packaging problem. I previously said:

" ftp://ftp.sco.com/pub/openserver5/drivers/OSR507/btld/wdsupp/. Do not
" use the BTLD from ../wd; it won't work on OSR502.

What I really meant was that it won't work as _at boot time_. You
should be able to install it at runtime: go to single-user mode, mount a
floppy containing the BTLD on /mnt, and run:

  btldinstall /mnt

It asks which BTLD; tell it "wd506". This installs the
OSR506-compatible version of the BTLD. At that point your kernel will
not be able to link until you patch /etc/conf/pack.d/wd/space.c with the
swab() function I previously posted.

Once again, I think this will work but I haven't tested it. I have root
access to an OSR502 machine, but it isn't "mine" and I shouldn't do
drastic things like installing a BTLD. I was able to test the kernel
linking aspect because that can be done by just moving aside a couple of
files temporarily. If you test it, please let me know (1) if you got it
to link in, (2) if it booted, (3) if you saw any performance change.

>Bela<



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