Re: Poor SCSI drive performance on SMP machine, 2.2.16

["Johan Kullstam" <kullstam@ne.mediaone.net>]

"paradox3" <paradox3@maine.rr.com> writes:

> Here is the output from dmesg. How do I tell if it is improperly
> terminated?

you never gave the model of the hard drive (or if you did, i didn't
see it), but you did say a 10k rpm ibm.  i am going to assume it is
u2w/lvd capable.  no lvd hard drive has termination built in.  you
must use a seperate termination device at the end of the ribbon.  or
you can use a terminating cable.  since your controller is a
single-ended device, get a single-ended, wide, active terminator and
plug it into the end of the ribbon.  put the hard drive in the middle
somewhere.

see <URL:http://www.scsifaq.org/> for more information.

> Thanks, Para-dox (paradox3@maine.rr.com)
> 
> 
> 
> 
> ----- Original Message -----
> From: "Michael Brown" <flight666@hotmail.com>
> To: <paradox3@maine.rr.com>
> Sent: Sunday, January 28, 2001 11:12 PM
> Subject: Re: Poor SCSI drive performance on SMP machine, 2.2.16
> 
> 
> > Your problem appears to be improper SCSI termination.
> >
> > You need to either
> >   1) make sure your SCSI drive has termination enabled
> > or
> >   2) move your SCSI drive to the middle connector and put a terminator on
> > the last connector
> >
> > Check your syslog and post to l-k the part where it detects your drives.
> > I'll bet the adapter is throttling back quite dramatically in the presence
> > of improper termination.
> >
> > --
> > Michael Brown
> >
> > _________________________________________________________________
> > Get your FREE download of MSN Explorer at http://explorer.msn.com
> >
> >
> 

-- 
J o h a n  K u l l s t a m
[kullstam@ne.mediaone.net]
Don't Fear the Penguin!
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