From owner-freebsd-questions Mon Jan 29 12:38:51 2001 Delivered-To: freebsd-questions@freebsd.org Received: from sleipner.eiffel.dk (sub19-229.member.dsl-only.net [63.105.19.229]) by hub.freebsd.org (Postfix) with ESMTP id DC5A037B404 for ; Mon, 29 Jan 2001 12:38:32 -0800 (PST) Received: from tychobrahe (sub19-225.member.dsl-only.net [63.105.19.225]) by sleipner.eiffel.dk (8.11.1/8.9.3) with SMTP id f0TKiEm54494 for ; Mon, 29 Jan 2001 12:44:15 -0800 (PST) (envelope-from flemming@froekjaer.org) Message-Id: <4.1.20010129121833.012e80e0@sleipner.eiffel.dk> X-Sender: flemming@sleipner.eiffel.dk X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1 Date: Mon, 29 Jan 2001 12:39:20 -0800 To: questions@FreeBSD.ORG From: Flemming =?iso-8859-1?Q?Fr=F8kj=E6r?= Subject: Which raid controler? Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I recently told my boss to put more disks in our database server, and run the database on a raid 0-1 drive and the log files on a raid 1. I told him that with a raid 0-1 the controller would be able to spread 2 concurrent reads to the different disks in the raid, so reads effectively would be twice as fast as reads on a raid 0 which already are faster than our current raid 5 He asked me which raid controllers supports this, and I think almost any newer, but i haven't done this since my first DPT raid controller, and that is 5 years ago. Which raid controller would be best for this kind of application. Should i put several controllers in the box? One for the database, one for the log files and one for the system, or just one? I have my own opinion on this, but it would make it a lot easier for me to convince him if somebody else would back me up. \Flemming To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message