From owner-freebsd-hardware Sat Jun 27 20:53:14 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA18461 for freebsd-hardware-outgoing; Sat, 27 Jun 1998 20:53:14 -0700 (PDT) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from freebie.lemis.com (freebie.lemis.com [139.130.136.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id UAA18452 for ; Sat, 27 Jun 1998 20:53:07 -0700 (PDT) (envelope-from grog@freebie.lemis.com) Received: (from grog@localhost) by freebie.lemis.com (8.9.0/8.9.0) id NAA28508; Sun, 28 Jun 1998 13:23:00 +0930 (CST) Message-ID: <19980628132300.J28055@freebie.lemis.com> Date: Sun, 28 Jun 1998 13:23:00 +0930 From: Greg Lehey To: Richard Foulk , Stefanos Kiakas , freebsd-hardware@FreeBSD.ORG Subject: Re: RAID and FreeBSD References: <199806280350.RAA25683@pegasus.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: <199806280350.RAA25683@pegasus.com>; from Richard Foulk on Sat, Jun 27, 1998 at 05:50:06PM -1000 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-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Saturday, 27 June 1998 at 17:50:06 -1000, Richard Foulk wrote: >>> Having had a software RAID system fail I would recommend against them. >> >> What would you have done if you had had a hardware RAID system fail? > > ?? > > Fix it or replace it. But not recommend against it? >>> With hardware RAID there is greater assurance that once you've used >>> it for a few weeks or months that it will remain consistent. As >>> part of an OS kernel (drivers, etc.) uncertainty revisits every time >>> the system software is upgraded, patched or changed in some way. >> >> I suppose if you don't upgrade your RAID box, you don't change old >> bugs for new. The same applies to a kernel, of course. > > Even if you upgrade your RAID box (which happens much less often than > OS upgrades in my experience), the system is simpler That's a valid point. > and the RAID is much more likely to be just like the vendors units. I don't understand that. What are you saying? > With OS-based software RAID you'll almost never have a configuration > just like the vendor's. I still don't understand. Are you saying that configurability is a disadvantage? Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message