From owner-freebsd-stable Sat Jan 20 21:54: 9 2001 Delivered-To: freebsd-stable@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id E757637B400 for ; Sat, 20 Jan 2001 21:53:49 -0800 (PST) Received: (from des@localhost) by flood.ping.uio.no (8.9.3/8.9.3) id GAA63905; Sun, 21 Jan 2001 06:53:44 +0100 (CET) (envelope-from des@ofug.org) X-URL: http://www.ofug.org/~des/ X-Disclaimer: The views expressed in this message do not necessarily coincide with those of any organisation or company with which I am or have been affiliated. To: "Shawn Barnhart" Cc: "Matt Dillon" , Subject: Re: Limit on the number of disklabel entries? References: <33819.980017896@winston.osd.bsdi.com> <200101201930.f0KJUKw08417@earth.backplane.com> <009201c0831a$94db1cf0$b8209fc0@marlowe> From: Dag-Erling Smorgrav Date: 21 Jan 2001 06:53:44 +0100 In-Reply-To: "Shawn Barnhart"'s message of "Sat, 20 Jan 2001 13:52:55 -0600" Message-ID: Lines: 23 User-Agent: Gnus/5.0802 (Gnus v5.8.2) Emacs/20.4 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG "Shawn Barnhart" writes: > Is this ever an issue for anyone with very, very large disks or arrays where > a large number of logical filesystems might be desired? If my math is > right, there's a limit of 24 filesystems per disk, which is really only 20 > if you exclude /, swap, /var, and /usr. No, it's seven times four = 28. Each slice can have eight partitions, one of which (c) is reserved. B doesn't have a special meaning anymore - you can swap and dump to any partition you like, and there's nothing to stop you from putting a filesystem on b. D isn't reserved any more, so you can use it for anything you like. A only has a special meaning insofar as the boot code will default to boot off the a partition on the first FreeBSD slice it finds, but otherwise you can use it for anything you like. If "very, very large disks or arrays" really are a problem, you can use a volume manager (such as vinum, or in a pinch, ccd) to split a partition into many logical volumes, each of which can hold a single partition. DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message