Re: scsi tuning

[Francois Taiani <francois.taiani@laas.fr>]

Hi John,

I'm not sure this will be of any help to you, but did you try more 
recent versions of the kernel, to see if it would do any difference ? 
(I'm using 2.4.18, and it happens to be as reliable as 2.2.x on my G3 
White & Blue.) I also dimly remember a kernel config option to improve 
I/O latencies, maybe you could try that one too.

Francois

John Schmidt wrote:

> On Sunday 21 April 2002 08:36 am, John Schmidt wrote:
>
> > Hi,
> >
> > I have a Power Tower Pro with a G3/466 card running with scsi drives.  I am
> > running woody with kernel 2.2.20.  The drive is hooked up to the internal
> > scsci bus which supposedly can do 10MB/sec transfers (I think I got the
> > right specs; I do know that the external bus is half the speed of the
> > internal). The drive in question is:
> >
> > mesh: target 1 synchronous at 10.0 MB/s
> >  Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X
> >  Type:   Direct-Access                      ANSI SCSI revision: 02
>
> Oops, I goofed and copied the wrong drive:
>  
> Vendor: QUANTUM   Model: FIREBALL SE8.4S   Rev: PJ0A
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sdc at scsi0, channel 0, id 2, lun 0
> mesh: target 3 synchronous at 10.0 MB/s
>
> The hdparm from my previous post apply to the above "corrected" drive.
>
> John


--
Francois Taiani              LAAS-CNRS (http://www.laas.fr)
+33 (0) 561 336 406          Dependable Computing
http://www.laas.fr/~ftaiani  and Fault Tolerance


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