From owner-freebsd-hackers Fri Sep 14 15:21:48 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from revolt.poohsticks.org (revolt.poohsticks.org [63.227.60.74]) by hub.freebsd.org (Postfix) with ESMTP id D3D7D37B401 for ; Fri, 14 Sep 2001 15:21:45 -0700 (PDT) Received: from revolt.poohsticks.org (localhost [127.0.0.1]) by revolt.poohsticks.org (8.11.3/8.11.3) with ESMTP id f8EMLhs84165; Fri, 14 Sep 2001 16:21:43 -0600 (MDT) (envelope-from drew@revolt.poohsticks.org) Message-Id: <200109142221.f8EMLhs84165@revolt.poohsticks.org> To: Dan Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: ide striping In-reply-to: Your message of "Fri, 14 Sep 2001 04:37:58 PDT." <20010914043602.P31777-100000@gandalf.bravenet.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <84162.1000506103.1@revolt.poohsticks.org> Date: Fri, 14 Sep 2001 16:21:43 -0600 From: Drew Eckhardt Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <20010914043602.P31777-100000@gandalf.bravenet.com>, dphoenix@braven et.com writes: > >Does it make sense at all to stripe primary slave, >secondary master and slave together? >I would imagine it is a waste of time , just looking for thoughts >on this vs just a single primary master IDE. On a normal system, random access time will have a much bigger effect on performance than raw throughput. Although you can transfer 800K sequentially to or from the outer cylinders on a modern drive in 20ms, it's going to take just as long to transfer a single 4K block from an arbitrary disk location because of seek time and rotational latency. So, you'd be better off running a file system on each spindle and spreading your data out accross those file systems than striping for one big file system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message