From owner-freebsd-questions@FreeBSD.ORG Sun Jul 23 15:54:03 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 915C016A4DF for ; Sun, 23 Jul 2006 15:54:03 +0000 (UTC) (envelope-from jhorne@dfwlp.org) Received: from zeus.int.dfwlp.com (zeus.dfwlp.com [208.11.134.127]) by mx1.FreeBSD.org (Postfix) with ESMTP id 39BBF43D58 for ; Sun, 23 Jul 2006 15:54:03 +0000 (GMT) (envelope-from jhorne@dfwlp.org) Received: from athena.int.dfwlp.com (athena.int.dfwlp.com [192.168.125.83]) (authenticated bits=0) by zeus.int.dfwlp.com (8.13.6/8.13.6) with ESMTP id k6NFs1s8056161 for ; Sun, 23 Jul 2006 10:54:01 -0500 (CDT) (envelope-from jhorne@dfwlp.org) From: Jonathan Horne To: freebsd-questions@freebsd.org Date: Sun, 23 Jul 2006 10:53:58 -0500 User-Agent: KMail/1.9.3 References: <44C26B7A.30200@firebadger.net> <44C357CA.4040801@firebadger.net> In-Reply-To: <44C357CA.4040801@firebadger.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200607231053.58927.jhorne@dfwlp.org> X-Spam-Status: No, score=-1.4 required=5.0 tests=ALL_TRUSTED autolearn=failed version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on zeus.int.dfwlp.com Subject: Re: Slow Write Performance on 3ware controller X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 23 Jul 2006 15:54:03 -0000 On Sunday 23 July 2006 06:04, Richard Collyer wrote: > Nikolas Britton wrote: > >> Would moving the top card to the bottom slot and putting the 9500S-12 in > >> the top slot screw with FreeBSD in anyway or will it just accept the > >> changes and keep on going? > > > > I don't see any problem doing that... FreeBSD would only care if it > > was the boot drive AND if it also changed the device name in /dev. So > > yes... try it... if it changes the /dev name just edit /etc/fstab with > > the new settings. > > Oh yes, had fun with fstab in single user mode yesterday ... I'd put a > spelling mistake in /etc/fstab that was fun as it was my first venture > into single user mode. Took me 20 mins to realise that only / was > mounted and that /use wasn't hence no editors or shells. > > As this is a production server (its only my home file server) and the > card was an ebay special at sub $200 I'm happy with the performance. > > I may play around with moving them when some more routine maintenance > comes up but as I am only writing to it over the 100Mbit network > 50MB/sec is more than enough for what I am looking at. > > Many thanks for the help. > > Cheers > Richard > all this 3ware discussion inspired me to check out my 6.1-releng server and see how its 3ware card stacks up to the previously posted scores. [root@zeus ~]# diskinfo -t /dev/twed2 /dev/twed2 512 # sectorsize 360099151872 # mediasize in bytes (335G) 703318656 # mediasize in sectors 43779 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 5.702448 sec = 22.810 msec Half stroke: 250 iter in 3.484361 sec = 13.937 msec Quarter stroke: 500 iter in 5.728894 sec = 11.458 msec Short forward: 400 iter in 2.178793 sec = 5.447 msec Short backward: 400 iter in 3.040917 sec = 7.602 msec Seq outer: 2048 iter in 0.502034 sec = 0.245 msec Seq inner: 2048 iter in 0.521798 sec = 0.255 msec Transfer rates: outside: 102400 kbytes in 2.872447 sec = 35649 kbytes/sec middle: 102400 kbytes in 2.996709 sec = 34171 kbytes/sec inside: 102400 kbytes in 2.341439 sec = 43734 kbytes/sec ive been a 3ware fan for many years now. this pic was taken in 2001... http://www.dfwlp.org/~jhorne/pics/computerroom/raid01.jpg heh, you want to talk about pci placement based on fit of ide cables... lol try mine. in the end, after 5 years, im impressed mine is still chugging away, at albeit the performance numbers of yesteryear. oh, incase anyone would ask, my /dev/twed2 is a 4x120GB RRAID5 with seagate's (ST3120026A), in a dual 1ghz thats almost as old as the card. i would love to go out and buy a new 3ware... but this one wont die! :) an btw to richard (and other 3ware users too), do you have the sysutils/tw_cli port installed? very useful! cheers, jonathan