From owner-freebsd-fs Fri Nov 6 15:50:51 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA23859 for freebsd-fs-outgoing; Fri, 6 Nov 1998 15:50:51 -0800 (PST) (envelope-from owner-freebsd-fs@FreeBSD.ORG) Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA23851 for ; Fri, 6 Nov 1998 15:50:47 -0800 (PST) (envelope-from grog@freebie.lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.9.1/8.9.0) with ESMTP id KAA01507; Sat, 7 Nov 1998 10:20:16 +1030 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.1/8.9.0) id KAA00798; Sat, 7 Nov 1998 10:20:14 +1030 (CST) Message-ID: <19981107102014.F499@freebie.lemis.com> Date: Sat, 7 Nov 1998 10:20:14 +1030 From: Greg Lehey To: Bagnara Stefano , freebsd-fs@FreeBSD.ORG Subject: Re: RAID1 Software vs Hardware References: <008e01be09a3$88e06880$0f63b1c2@lust.datasail.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: <008e01be09a3$88e06880$0f63b1c2@lust.datasail.it>; from Bagnara Stefano on Fri, Nov 06, 1998 at 05:35:58PM +0100 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org [Format autorecovered at freebie.lemis.com] On Friday, 6 November 1998 at 17:35:58 +0100, Bagnara Stefano wrote: > I don't know if this is the correct list (sorry if not), anyway: The list's OK. Your message is difficult to read, though: one of the lines was 136 characters long. I've corrected the format here. > I need to implement a simple raid1 with 2 9gigs SCSI HDD. I need a > inexpensive solution ... so i was thinking about a software raid1. > Is it possible? Yes. > is it too slow? The software aspects don't make a significant difference in performance. You're still limited by the disks themselves. > the system will be only a mail server. Any idea of the disk data rates? > How can i do hw raid with a low cost card?? and.. what card? Well, it would be a DPT board, but I don't know if it's low cost. For the software alternative, see Vinum (http://www.lemis.com/vinum.html). Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message