From owner-freebsd-questions Tue Feb 23 1:34:27 1999 Delivered-To: freebsd-questions@freebsd.org Received: from relay.ucb.crimea.ua (relay.ucb.crimea.ua [212.110.138.1]) by hub.freebsd.org (Postfix) with ESMTP id 690AB11122 for ; Tue, 23 Feb 1999 01:33:31 -0800 (PST) (envelope-from ru@ucb.crimea.ua) Received: (from ru@localhost) by relay.ucb.crimea.ua (8.9.2/8.9.2/UCB) id LAA40330; Tue, 23 Feb 1999 11:33:13 +0200 (EET) (envelope-from ru) Date: Tue, 23 Feb 1999 11:33:13 +0200 From: Ruslan Ermilov To: FreeBSD Questions Subject: WD Enterprise SCSI drive performance Message-ID: <19990223113313.A37683@ucb.crimea.ua> Mail-Followup-To: FreeBSD Questions Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.94.17i X-Operating-System: FreeBSD 3.1-STABLE i386 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi! I have the following hardware: FreeBSD 3.1-STABLE #1: Mon Feb 22 13:14:55 EET 1999 ahc0: rev 0x00 int a irq 11 on pci0.13.0 ahc0: Using left over BIOS settings ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs da0 at ahc0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit) da0: 4157MB (8515173 512 byte sectors: 64H 32S/T 4157C) Using (dd if=/dev/zero of=/usr/tmp/file bs=64k count=1000) I get about 4.2MB/s. Is it normal? What is the expected write speed of this drive? -- Ruslan Ermilov Sysadmin and DBA of the ru@ucb.crimea.ua United Commercial Bank +380.652.247.647 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message