From owner-freebsd-hackers Wed Oct 28 02:35:40 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id CAA14544 for freebsd-hackers-outgoing; Wed, 28 Oct 1998 02:35:40 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from mail.aussie.org (hallam.lnk.telstra.net [139.130.54.166]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id CAA14538 for ; Wed, 28 Oct 1998 02:35:36 -0800 (PST) (envelope-from mlnn4@oaks.com.au) Received: from bigbox (dialup-b1-29.raytrace.com [203.29.75.73]) by mail.aussie.org (8.9.0/8.9.0) with SMTP id VAA01075 for ; Wed, 28 Oct 1998 21:34:54 +1100 (EST) Message-Id: <199810281034.VAA01075@mail.aussie.org> From: "Hallam Oaks" To: "hackers@FreeBSD.ORG" Date: Wed, 28 Oct 1998 21:27:59 +1100 Reply-To: "Hallam Oaks" X-Mailer: PMMail 98 Standard (2.01.1600) For Windows NT (4.0.1381;3) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: Re: Multi-terabyte disk farm Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Thanks for all the advice. At the moment we're looking at a solution involving Kingston enclosures and hot-swap trays, hooked up to 56 IBM UltraStore 18.2gb HDD's. We'll be running these off two servers using double-ended SCSI controllers in much the same way as the tertiary disk project does. This gives us 1tb in a single rack ; we add new racks each time we need a new terabyte. We're taking a punt on drive prices going down and capacities going up as we stock the farm over a period of two years to its final capacity of 8tb. We won't be using raid because (a) we don't care about speed, and (b) we don't care if a drive dies and takes its data along with it. All data will be backed up on AIT tape (shelved). This is a usable solution to us since the type of data being stored is very static. It comes in one end, sits there for two years, then is deleted. It doesn't change in the meantime, and in fact it's likely that any drive with >6mo data on it will be spun down. If anyone's interested, and we go ahead with it, I'll let -hackers know how much the thing ended up costing and how well it worked. -- Chris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message