From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Reis Subject: Re: Recomended IDE-RAID MB Date: Sun, 6 Apr 2003 11:38:29 -0300 Sender: linux-admin-owner@vger.kernel.org Message-ID: <20030406113829.B498@blackjesus.async.com.br> References: <3E8F7C30.21091.31D33A@localhost> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <3E8F7C30.21091.31D33A@localhost>; from andrew.cramer@cramer-ts.com on Sun, Apr 06, 2003 at 01:00:32AM -0600 List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Andrew B. Cramer" Cc: linux-admin On Sun, Apr 06, 2003 at 01:00:32AM -0600, Andrew B. Cramer wrote: > > What brand of motherboard would you use for just mirroring two huge > IDE drives? I'd just make sure the drives were fast, that the MB supported ATA100 and that you used 80w IDE cables. My Soyo Dragon Plus gets fairly good throughput; unfortunately, my drives are too slow, which means the total performance would be better than: Version 1.02c ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP blackjesus 512M 7128 64 8339 6 4925 3 8256 70 13530 5 161.1 0 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 11707 97 +++++ +++ 13882 99 8859 76 +++++ +++ 12141 100 In my experience it takes at the most 5 minutes to resync the (on-average) 2GB partitions it is cut up into. This board also includes Promise IDE Hardware RAID, but I've never used it and can't comment on its performance. Take care, -- Christian Reis, Senior Engineer, Async Open Source, Brazil. http://async.com.br/~kiko/ | [+55 16] 261 2331 | NMFL