NEXTSTEP 3.3 patch, Adaptec 2940 and Command Queueing

Article View: comp.sys.next.hardware

Article #1621

Back to comp.sys.next.hardware Previous Next

#1621

From: Robert La Ferla
Date: Sat, 03 Feb 1996 20:45

34 lines
1390 bytes

Has anyone gotten this to work?  I have tried this with a few different
configurations without success.  I am thinking that NeXT's driver is
just broken.  I get system panics and corrupted disks (repairable via
fsck)

Configuration #1:

Adaptec 2940N, Seagate ST12550N, NEC 4Xi

 Configuration #2:

 Adaptec 2940N, Seagate ST12550N, Toshiba XM-3601

 Configuration #3:

 Adaptec 2940UW, Seagate ST32550W, Toshiba XM-3701

 Note:  I've tried all versions of the 2940 driver up to 3.37.

 Note that both Seagate drives support command queueing.  When I run
 Adaptec's DOS/Windows SCSI programs, it shows that they support it.
 All the CD-ROM drives DO NOT support it.  

 Is it the case that all peripherals on the bus need to support command
 queueing?

 Also, how much of a benefit is command queueing anyhow?

Robert La Ferla
Registered OPENSTEP / NEXTSTEP Consultant
Boston, MA
Tel: + 1 (617) 252-0088
Fax: + 1 (617) 252-0004
E-mail: Robert_La_Ferla@hot.com

Technical Details

Message-ID: <RDL.96Feb3154531@world.std.com>

Path: arc1-ca.pugleaf.net!in2.uu.net!world!rdl

Show Full Headers

Complete Article Headers

Newsgroups: comp.sys.next.hardware,comp.periphs.scsi,comp.sys.next.bugs
Path: arc1-ca.pugleaf.net!in2.uu.net!world!rdl
From: rdl@world.std.com (Robert La Ferla)
Subject: NEXTSTEP 3.3 patch, Adaptec 2940 and Command Queueing
Message-ID: <RDL.96Feb3154531@world.std.com>
Sender: rdl@world.std.com (Robert La Ferla)
Organization: The World Public Access UNIX, Brookline, MA
Date: Sat, 3 Feb 1996 20:45:31 GMT