From owner-freebsd-hackers Tue Oct 21 09:51:31 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id JAA24303 for hackers-outgoing; Tue, 21 Oct 1997 09:51:31 -0700 (PDT) (envelope-from owner-freebsd-hackers) Received: from pluto.plutotech.com (ken@mail.plutotech.com [206.168.67.137]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id JAA24294 for ; Tue, 21 Oct 1997 09:51:29 -0700 (PDT) (envelope-from ken@plutotech.com) Received: (from ken@localhost) by pluto.plutotech.com (8.8.5/8.8.5) id KAA18361; Tue, 21 Oct 1997 10:50:49 -0600 (MDT) From: Kenneth Merry Message-Id: <199710211650.KAA18361@pluto.plutotech.com> Subject: Re: on ccd and large disk array In-Reply-To: <199710211052.OAA12808@asteroid.mgt.msk.ru> from "Alexander B. Povolotsky" at "Oct 21, 97 02:52:01 pm" To: tarkhil@mgt.msk.ru Date: Tue, 21 Oct 1997 10:50:49 -0600 (MDT) Cc: hackers@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28s (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Alexander B. Povolotsky wrote... > Hello! > > We're making a (relatively) large disk array using ccd: 5 Micropolis HDDs, > 8.7 Gb each, i.e. about 40 Gb total. > > Does anyone know possible traps on our way? Is FFS as-is stable on 40 Gb > filesystems? What may we need to patch? You'll need to make sure that you edit login.conf and increase the limits on memory usage, etc., so that you can fsck the partition. > We're running FreeBSD 2.2.2, PPro-200, 128 Mb RAM, AHA 2940 Ultra and AHA > 2940 Ultra Wide (all HDDs in ccd are on Ultra Wide). I built a 60G ccd array a couple of months ago, it seemed to work just fine. I think it should work okay for you as well, but you might want to get input from some of the folks running news servers, etc., on big ccd arrays. Ken -- Kenneth Merry ken@plutotech.com