From owner-freebsd-current Mon Nov 23 19:06:58 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA24559 for freebsd-current-outgoing; Mon, 23 Nov 1998 19:06:58 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from frmug.org (frmug-gw.frmug.org [193.56.58.252]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA24552 for ; Mon, 23 Nov 1998 19:06:54 -0800 (PST) (envelope-from roberto@keltia.freenix.fr) Received: (from uucp@localhost) by frmug.org (8.9.1/frmug-2.3/nospam) with UUCP id EAA26261 for freebsd-current@FreeBSD.ORG; Tue, 24 Nov 1998 04:06:39 +0100 (CET) (envelope-from roberto@keltia.freenix.fr) Received: by keltia.freenix.fr (Postfix, from userid 101) id 599DC14FA; Tue, 24 Nov 1998 01:15:12 +0100 (CET) Date: Tue, 24 Nov 1998 01:15:12 +0100 From: Ollivier Robert To: freebsd-current@FreeBSD.ORG Subject: Re: Adaptec SCSI messages Message-ID: <19981124011512.B11237@keltia.freenix.fr> Mail-Followup-To: freebsd-current@FreeBSD.ORG References: <19981114144915.A244@zappa.demon.nl> <19981117112118.A252@zappa.demon.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.94.16i In-Reply-To: <19981117112118.A252@zappa.demon.nl>; from Ron Klinkien on Tue, Nov 17, 1998 at 11:21:18AM +0100 X-Operating-System: FreeBSD 3.0-CURRENT/ELF ctm#4829 AMD-K6 MMX @ 200 MHz Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG According to Ron Klinkien: > Strange though that after doubling the data transfer rate from 40 -> 80Mb/s > iozone 100 doesn't reports any increase of speed. Because you have enlarged the _bus_ by two doesn't mean the drive is able to move bytes faster from the platters. You are now able to put more disks before saturating the SCSI bus but bear in mind that it is very unlikely that you'll be ever eble to saturate a 80 MB/s bus with only one drive. -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr FreeBSD keltia.freenix.fr 3.0-CURRENT #2: Sun Nov 8 01:22:20 CET 1998 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message