From owner-freebsd-scsi Fri Apr 20 4:24:14 2001 Delivered-To: freebsd-scsi@freebsd.org Received: from relay.ioffe.rssi.ru (relay.ioffe.rssi.ru [194.85.224.33]) by hub.freebsd.org (Postfix) with ESMTP id 40E8937B424; Fri, 20 Apr 2001 04:24:10 -0700 (PDT) (envelope-from kopts@astro.ioffe.rssi.ru) Received: from astro.ioffe.rssi.ru (astro.ioffe.rssi.ru [194.85.229.130]) by relay.ioffe.rssi.ru (8.9.1/8.9.1) with ESMTP id PAA28254; Fri, 20 Apr 2001 15:24:08 +0400 (MSD) Received: by astro.ioffe.rssi.ru (8.9.3/Clnt-2.14-AS-eef) id PAA86602; Fri, 20 Apr 2001 15:23:33 +0400 (MSD) Date: Fri, 20 Apr 2001 15:23:33 +0400 (MSD) From: Alexey Koptsevich To: Mike Smith Cc: scsi@freebsd.org Subject: Re: IDE RAID In-Reply-To: <200104191949.f3JJnge01789@mass.dis.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Mike, > > Sure, only raid5 is interesting for me. Promise SuperTrak (raid5) > > controllers are available here. > > Hmm. RAID5 isn't really all that wonderful; you pay a high price in both > cost and performance to do all those XOR calculations. OK, for the moment we use software mirror via vinum, SCSI RAID controller and especially discs are a bit expensive :) > Yes, it is. I haven't had any time lately to test it, but it's known to > work. BTW, where can I read about configuration of the 'twe' array? E.g., how the discs are seen by the OS? How can I partition them? Can I have different types of RAID on the same array, e.g., half for RAD5 and half for mirror? Thanks a lot, Alex To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message