From owner-freebsd-questions Mon Dec 4 12:50:15 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id MAA28910 for questions-outgoing; Mon, 4 Dec 1995 12:50:15 -0800 Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id MAA28836 for ; Mon, 4 Dec 1995 12:50:07 -0800 Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id NAA04302; Mon, 4 Dec 1995 13:48:18 -0700 From: Terry Lambert Message-Id: <199512042048.NAA04302@phaeton.artisoft.com> Subject: Re: Inodes for news server To: swaits@pr.erau.edu (Stephen Waits) Date: Mon, 4 Dec 1995 13:48:18 -0700 (MST) Cc: terry@lambert.org, questions@freebsd.org In-Reply-To: from "Stephen Waits" at Dec 3, 95 06:30:28 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1068 Sender: owner-questions@freebsd.org Precedence: bulk > > 1) Device "concatenation" -- what the NetBSD cdd driver does; > > it could be ported to FreeBSD easily. > > > > 2) RAID. > > Are either of these being worked on??? 1) The NetBSD driver is an easy port... no more difficult than installing another disk, which you will need to do to make it work anyway. Native support, at least as far as I'm concerned, hinges on integration of devfs as the default device access mechanism. 2) There is a Compaq SCSI comtroller that has transparent RAID. There is a driver for FreeBSD, although it hasn't been integrated. Look at the -hackers list archive, subject "Re: RAID" for details on the Compaq controller. Software RAID is pretty much unusable because of [lack of] speed, although there was talk at one time of altering the AIC-7770 based controller's sequencer code (since it is home brew anyway) to support RAID at that level, which would make it more realistic. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.