lkml.org 
[lkml]   [2001]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Poor SCSI drive performance on SMP machine, 2.2.16
Date
Here is the output from dmesg. How do I tell if it is improperly terminated?

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
>
>
(scsi0) <Adaptec AIC-7890/1 Ultra2 SCSI host adapter> found at PCI 0/12/0
(scsi0) Wide Channel, SCSI ID=7, 32/255 SCBs
(scsi0) Downloading sequencer code... 392 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.31/3.2.4
<Adaptec AIC-7890/1 Ultra2 SCSI host adapter>
scsi : 1 host.
(scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 15.
Vendor: IBM Model: DGHS09U Rev: 0350
Type: Direct-Access ANSI SCSI revision: 03
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
scsi : detected 1 SCSI disk total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 17916240 [8748 MB] [8.7 GB]
Partition check:
sda: sda1 sda2 sda3
\
 
 \ /
  Last update: 2005-03-22 13:24    [from the cache]
©2003-2011 Jasper Spaans