From owner-freebsd-questions@FreeBSD.ORG Sun Jul 23 16:28:04 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 2659516A4DD for ; Sun, 23 Jul 2006 16:28:04 +0000 (UTC) (envelope-from nikolas.britton@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.175]) by mx1.FreeBSD.org (Postfix) with ESMTP id B48EA43D7E for ; Sun, 23 Jul 2006 16:27:53 +0000 (GMT) (envelope-from nikolas.britton@gmail.com) Received: by ug-out-1314.google.com with SMTP id m2so2027128uge for ; Sun, 23 Jul 2006 09:27:52 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=TPD1nghD00+oLDiGYRDcJecSLhTn6zbsHeP+zxXJPdj4WHQ1zUE6imm4k6Qvt+TizGv0w0uGLSm++gu4g4JYoZnKmw8OxRCiL6yZryk9aHMdU133r/lbTUskjFvP9JIhA2gyJWH+FNbA+YTMlM5uUZXhonOU2wTzMnai+TAhW0I= Received: by 10.78.160.2 with SMTP id i2mr1158896hue; Sun, 23 Jul 2006 09:27:51 -0700 (PDT) Received: by 10.78.143.13 with HTTP; Sun, 23 Jul 2006 09:27:51 -0700 (PDT) Message-ID: Date: Sun, 23 Jul 2006 11:27:51 -0500 From: "Nikolas Britton" To: "Jonathan Horne" In-Reply-To: <200607231053.58927.jhorne@dfwlp.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <44C26B7A.30200@firebadger.net> <44C357CA.4040801@firebadger.net> <200607231053.58927.jhorne@dfwlp.org> Cc: freebsd-questions@freebsd.org 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 16:28:04 -0000 On 7/23/06, Jonathan Horne wrote: > 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. IBM Deathstars, not so fond memories of those drives. Here's another diskinfo from an 8 disk Maxtor 7L250S0 array connected to a HighPoint 2220, It's days away from being decommissioned and then rebuilt into a backup array for the new one taking it's place (Areca ARC-1220 + 8 Maxtor 7V300F0s): > diskinfo -t /dev/da0 /dev/da0 512 # sectorsize 1756440297472 # mediasize in bytes (1.6T) 3430547456 # mediasize in sectors 213541 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 4.068691 sec = 16.275 msec Half stroke: 250 iter in 3.614864 sec = 14.459 msec Quarter stroke: 500 iter in 6.100577 sec = 12.201 msec Short forward: 400 iter in 2.314725 sec = 5.787 msec Short backward: 400 iter in 2.492332 sec = 6.231 msec Seq outer: 2048 iter in 0.251374 sec = 0.123 msec Seq inner: 2048 iter in 0.299685 sec = 0.146 msec Transfer rates: outside: 102400 kbytes in 0.712265 sec = 143767 kbytes/sec middle: 102400 kbytes in 0.698637 sec = 146571 kbytes/sec inside: 102400 kbytes in 0.690232 sec = 148356 kbytes/sec -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/