From owner-freebsd-isp Sun Feb 9 16:31:59 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id QAA22638 for isp-outgoing; Sun, 9 Feb 1997 16:31:59 -0800 (PST) Received: from alpha.risc.org (trt-on18-33.netcom.ca [207.181.85.225]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id QAA22633 for ; Sun, 9 Feb 1997 16:31:54 -0800 (PST) Received: from localhost (taob@localhost) by alpha.risc.org (8.8.4/8.8.4) with SMTP id TAA18756 for ; Sun, 9 Feb 1997 19:31:41 -0500 (EST) Date: Sun, 9 Feb 1997 19:31:41 -0500 (EST) From: Brian Tao To: FREEBSD-ISP-L Subject: Re: SCSI-to-SCSI RAID controllers (was "RAID ? ") In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Sun, 9 Feb 1997, Dror Matalon wrote: > > After a while though I felt that there isn't yet a mature solution > that works well with FreeBSD and so we spent the extra $ and got a > Netapp (www.netapp.com). Cost $20K for 18 Usable Gigs, but we're > very happy with it. SCSI-to-SCSI RAID controllers don't have to be OS-specific. The CMD controller is quite nice and appears as a single device to FreeBSD. Absolutely no tweaking was necessary with FreeBSD. If you have the bucks, I'd suggest going that route. A high-end subsystem with hot/warm spares, auto-rebuild, multiple host support and a couple hundred megs of cache ends up costing roughly the same as a NetApp and you can plug it directly into your FreeBSD servers. NetApps are more scalable if you have a farm of servers that need to share the same filesystem though. If you can't afford to pay over $1/meg for storage, the ccd driver will give you excellent performance and the ability to see one, large filesystem, with the option of disk mirroring (but no parity information). -- Brian Tao (BT300, taob@risc.org) "Though this be madness, yet there is method in't"