From owner-freebsd-fs Tue Mar 13 15:46: 4 2001 Delivered-To: freebsd-fs@freebsd.org Received: from eozoon.coleman.org (adsl-209-233-238-136.dsl.snfc21.pacbell.net [209.233.238.136]) by hub.freebsd.org (Postfix) with ESMTP id A545637B741; Tue, 13 Mar 2001 15:45:49 -0800 (PST) (envelope-from don@eozoon.coleman.org) Received: from eozoon.coleman.org (eozoon.coleman.org [127.0.0.1] (may be forged)) by eozoon.coleman.org (8.9.3/8.9.3) with ESMTP id PAA28094; Tue, 13 Mar 2001 15:45:37 -0800 (PST) Message-Id: <200103132345.PAA28094@eozoon.coleman.org> X-Mailer: exmh version 2.3.1 01/18/2001 with nmh-1.0.4 To: Poul-Henning Kamp Reply-To: don@coleman.org Cc: Wilko Bulte , Chris Dillon , scsi@FreeBSD.ORG, fs@FreeBSD.ORG Subject: Re: Disk I/O problem in 4.3-BETA In-reply-to: Your message of "Tue, 13 Mar 2001 22:49:13 +0100." <10844.984520153@critter> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 13 Mar 2001 15:45:37 -0800 From: Don Coleman Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org The original legato prestoserve board (VME bus) was manufactured by Micro Memory Inc, 9540 Vassar Ave Chatsworth, CA 91311 818-998-0070 Our contact was Mose' Jadon. The address and phone # are circa 1989. Amazingly enough, a web search turns up http://www.micromemory.com, and the old phone # is still valid. The original board was called the MM6704c by Micro Memory. A design firm we didn't pick wanted a bit under $100,000 for a custom engineering design, plus about $1000 per board. A PCI board is *much* smaller then a 9U VME board, and I'd expect the boards to be a lot cheaper. I think you'd want at least a couple weeks of backup, since if the machine crashes due to a hardware failure, it may not come back up soon, and the NVRAM is logically part of the disks... The original Preserve had 3 NiCd batteries to backup its low power static CMOS memory, good for about 6 months with no power (it also had a built in charger). don To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message