From owner-freebsd-amd64@FreeBSD.ORG Mon Oct 2 17:02:48 2006 Return-Path: X-Original-To: amd64@freebsd.org Delivered-To: freebsd-amd64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E5BAA16A412 for ; Mon, 2 Oct 2006 17:02:48 +0000 (UTC) (envelope-from cbh-freebsd-current@groups.chrishedley.com) Received: from lon-mail-1.gradwell.net (lon-mail-1.gradwell.net [193.111.201.125]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9F3B743D66 for ; Mon, 2 Oct 2006 17:02:41 +0000 (GMT) (envelope-from cbh-freebsd-current@groups.chrishedley.com) Received: from 53-233.adsl.zetnet.co.uk ([194.247.53.233] helo=mail.chrishedley.com country=GB ident=postmaster*pop3#chrishedley#com) by lon-mail-1.gradwell.net with esmtpa (Gradwell gwh-smtpd 1.232) id 45214630.175b3.8e1 for amd64@freebsd.org; Mon, 2 Oct 2006 18:02:40 +0100 (envelope-sender ) Received: from localhost (localhost [127.0.0.1]) by mail.chrishedley.com (Postfix) with ESMTP id A7991D296 for ; Mon, 2 Oct 2006 18:02:32 +0100 (BST) X-Virus-Scanned: amavisd-new at chrishedley.com Received: from mail.chrishedley.com ([127.0.0.1]) by localhost (mail.chrishedley.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id NYBlOlJCLtxX for ; Mon, 2 Oct 2006 18:02:30 +0100 (BST) Received: from teapot.cbhnet (teapot.cbhnet [192.168.1.1]) by mail.chrishedley.com (Postfix) with ESMTP id B0004D295 for ; Mon, 2 Oct 2006 18:02:30 +0100 (BST) Date: Mon, 2 Oct 2006 18:02:30 +0100 (BST) From: Chris Hedley X-X-Sender: cbh@teapot.cbhnet To: amd64@freebsd.org In-Reply-To: <20060829134709.L16098@3jane.math.ualberta.ca> Message-ID: <20061002175336.J1531@teapot.cbhnet> References: <20060829134709.L16098@3jane.math.ualberta.ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Subject: Re: suggestions for SATA RAID cards X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Oct 2006 17:02:49 -0000 On Tue, 29 Aug 2006, Barkley Vowk wrote: > Little late to the game on this post... Even later here, but I thought I may as well throw in my tuppence worth since I'm going through this again at the moment. I have an Adaptec 2410SA coupled to 4 250GB discs. I strongly recommend avoiding it: terrible performance, on RAID5 or 10 partitions I get around 30-40 MB/s on reads and between 3 and 6 MB/s on writes. Performance is probably better if using write back caching on the card and discs, but nobody here will be doing that, right? Its other main "issue" is more timeouts than you can shake a stick at under load, and unless you can kill off the offending process, the reset button's the only way out. I tested its ability to rebuild its sets after simulating a disc failure by removing one of the hot-swap trays, which it repaired without any issues other than the time it took; I eventually got fed up with hanging around for it to finish, but it was somewhere between 6 and 12 hours. I suspect I'll go for the Areca this time around, but I think I'll approach it with rather more caution as I don't want to find myself with another lemon like the 2410SA! Chris.