From owner-freebsd-stable Tue Jun 18 17:30:13 2002 Delivered-To: freebsd-stable@freebsd.org Received: from maul.immure.com (ns.immure.com [207.8.42.72]) by hub.freebsd.org (Postfix) with ESMTP id CDAA737B404 for ; Tue, 18 Jun 2002 17:30:03 -0700 (PDT) Received: (from root@localhost) by maul.immure.com (8.11.5/8.11.2) id g5J0U3964696 for freebsd-stable@freebsd.org; Tue, 18 Jun 2002 19:30:03 -0500 (CDT) (envelope-from bob@immure.com) Received: from luke.immure.com (luke.vieo.com [10.1.132.3]) by maul.immure.com (8.11.5/8.11.2) with ESMTP id g5J0U0w64655 for ; Tue, 18 Jun 2002 19:30:00 -0500 (CDT) (envelope-from bob@immure.com) Received: (from root@localhost) by luke.immure.com (8.12.3/8.12.3) id g5ILpp0c028179; Tue, 18 Jun 2002 16:51:51 -0500 (CDT) (envelope-from bob@luke.immure.com) Received: from luke.immure.com (localhost [127.0.0.1]) by luke.immure.com (8.12.3/8.12.3) with ESMTP id g5ILppwJ028154; Tue, 18 Jun 2002 16:51:51 -0500 (CDT) (envelope-from bob@luke.immure.com) Received: (from bob@localhost) by luke.immure.com (8.12.3/8.12.3/Submit) id g5ILppab028153; Tue, 18 Jun 2002 16:51:51 -0500 (CDT) Date: Tue, 18 Jun 2002 16:51:51 -0500 From: Bob Willcox To: John Nielsen Cc: stable list Subject: Re: the new ATA driver vs. vinum Message-ID: <20020618215151.GB9829@luke.immure.com> Reply-To: Bob Willcox References: <0fb301c2170c$df665ff0$0900a8c0@max> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0fb301c2170c$df665ff0$0900a8c0@max> User-Agent: Mutt/1.3.99i X-scanner: scanned by Inflex 1.0.12.3 on luke.immure.com X-scanner: scanned by Inflex 0.1.5c+ on maul.immure.com Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Jun 18, 2002 at 03:12:36PM -0600, John Nielsen wrote: > > Bear in mind that atacontrol is a utility to interact with a hardware ATA > raid controller, and doesn't do RAID itself. Vinum allows you to do RAID > without any special hardware. ATA RAID was possible in 4.5, you just had to > rely on the RAID controller's BIOS to set it up and manage it if there was a > problem. Actually, with the new ata driver and atacontrol you can do raid w/o an ata raid controller with some restrictions. From the atacontrol man page: Allthough the ATA driver allows for creating an ATA RAID on disks on any controller, there are restrictions. It is only pos- sible to boot on an array if its either located on a "real" ATA RAID controller like the Promise or Highpoint controllers, or if the RAID declared is of RAID1 or SPAN type, in case of a SPAN the partition to boot must reside on the first disk in the SPAN. So as long as you don't want/need to boot from the RAID, any IDE controller should work. I have several systems here runing both a RAID0 and a RAID0+1 array using a standard non-RAID promise IDE controllers (TX2's as I recall). Works fine! :-) Bob -- Bob Willcox Dealing with failure is easy: work hard to improve. bob@vieo.com Success is also easy to handle: you've solved the Austin, TX wrong problem. Work hard to improve. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message