From owner-freebsd-questions Tue Apr 9 13: 9:43 2002 Delivered-To: freebsd-questions@freebsd.org Received: from goliath.rri-usa.org (www.rri-usa.org [208.247.65.240]) by hub.freebsd.org (Postfix) with ESMTP id 420FD37B404 for ; Tue, 9 Apr 2002 13:09:37 -0700 (PDT) Received: (from root@localhost) by goliath.rri-usa.org (8.11.6/8.11.6) id g39K9ZY01927; Tue, 9 Apr 2002 16:09:35 -0400 (EDT) (envelope-from wgnadt@rri-usa.org) Received: from inspiron ([192.168.10.101]) by goliath.rri-usa.org (8.11.6/8.11.6av) with SMTP id g39K9Yb01919; Tue, 9 Apr 2002 16:09:34 -0400 (EDT) (envelope-from wgnadt@rri-usa.org) From: "William Gnadt" To: Cc: Subject: stress testing a USB hard drive Date: Tue, 9 Apr 2002 16:13:52 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Virus-Scanned: by AMaViS perl-11 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi: I've recently successfully configured an external USB hard drive, Prolific Technology Inc. ATAPI-4 Bridge Controller, rev 1.00/1.00, addr 2: uplata0 (v1) da0 at uplata-sim0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-0 device da0: 900KB/s transfers da0: 6194MB (12685680 512 byte sectors: 0H 0S/T 0C) using a kernel module kindly provided by Ian Dowse (iedowse@maths.tcd.ie), http://www.maths.tcd.ie/~iedowse/FreeBSD/uplata.tgz FYI, I recently purchased the enclosure from Computer Geeks (www.compgeeks.com) for $21, then added a Toshiba 2.5" laptop HD. (I'm running FreeBSD-4.5-STABLE, built 5 April 02.) Does anyone have recommendations for exercising the filesystem? (For stability testing.) I'm currently using 'iozone' (/usr/ports/benchmarks/iozone): iozone -az -i 0 -i 1 -R which should take several days at 50-150KB/s (!) I've completed testing with the msdos filesystem. Now, I'm running ufs+softupdates. What I'd really like is a utility which creates/deletes lots of files and directories, while repeatedly traversing the directory tree. Thanks for any help or pointers. --Bill To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message