From owner-freebsd-hardware Mon Mar 11 15:02:15 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id PAA27039 for hardware-outgoing; Mon, 11 Mar 1996 15:02:15 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id PAA26992 Mon, 11 Mar 1996 15:02:08 -0800 (PST) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id AAA14652; Tue, 12 Mar 1996 00:01:59 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id AAA27759; Tue, 12 Mar 1996 00:01:58 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.7.4/8.6.9) id XAA00663; Mon, 11 Mar 1996 23:46:04 +0100 (MET) From: J Wunsch Message-Id: <199603112246.XAA00663@uriah.heep.sax.de> Subject: Re: Slow Toshiba 6.7X cdrom drive. To: fcawth@jjarray.umd.edu (Fred Cawthorne) Date: Mon, 11 Mar 1996 23:46:04 +0100 (MET) Cc: freebsd-scsi@freebsd.org, freebsd-hardware@freebsd.org Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199603111723.MAA08823@jjarray.umd.edu> from "Fred Cawthorne" at Mar 11, 96 12:23:07 pm X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL24 ME8a] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Fred Cawthorne wrote: > > I just purchased a Toshiba 3701B 6.7X scsi drive. I have the 3401 and I > like it, and the price was good... Has anyone else had problems getting > this drive to work at full speed?? I get 300K/sec with a 486-66 and > an Ultrastor 14f controller. I get 500K/sec with a 1542CF on a P-90 > system. I can get 1MB/sec with an NCR scsi controller on the pentium system. > What's going on here? Just for reference: i get 330 KB/s (only) from the 3401 on a 486/33 with a Buslogic BT472A (EISA) controller (raw `dd' throughput). The controller is known to get about 5 MB/s from the Seagate Hawk that's also in the machine. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)