From owner-aic7xxx Mon Mar 22 6:59: 9 1999 Delivered-To: aic7xxx@freebsd.org Received: from hoggar.fisica.ufpr.br (hoggar.fisica.ufpr.br [200.17.214.33]) by hub.freebsd.org (Postfix) with ESMTP id A99B114C13 for ; Mon, 22 Mar 1999 06:58:49 -0800 (PST) (envelope-from carlos@fisica.ufpr.br) Received: (from carlos@localhost) by hoggar.fisica.ufpr.br (8.9.3/8.9.3/Debian/GNU) id MAA09777; Mon, 22 Mar 1999 12:01:19 -0300 From: Carlos Carvalho MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <14070.23359.544656.404989@hoggar.fisica.ufpr.br> Date: Mon, 22 Mar 1999 12:01:19 -0300 (EST) To: AIC7xxx@FreeBSD.ORG Subject: Re: SOFTWARE-RAID-TIPS (was: Adaptec 7890 and RAID portIII RAID controller Linux Support) In-Reply-To: References: <199903220803.AAA09207@frogger.cisco.com> X-Mailer: VM 6.62 under Emacs 19.34.1 Sender: owner-aic7xxx@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Osma Ahvenlampi (oa@razorfish.fi) wrote on 22 March 1999 12:52: >Beau James writes: >> Why bother breaking these directories into separate partitions, >> especially if you are going to put all of them onto a RAID array? > >Well, there is the issue of different mount options (nosuid,noexec,etc) >that you might want to set for some directories. Another issue is >system vs data separation and user quotas. Exactly. I think system X data separation isn't so much an issue, but mount options and quotas are essential. Another important reason is that if a partition gets full it doesn't hurt the others. I already try to minimize partitions. That's why I don't separate /usr/local and rwin-dows trash, er, stuff (via samba) from /usr. For a general application machine it seems that /, /var, /usr and /home is the minimum. On the seek speed issue, the small filesystems (compared to total drive size) don't hurt seek speed much, so /, /var and swap aren't that important, particularly if you spread them among all drivers so that the partition on each drive is small. The problem is /usr versus /home, which are both large and can't be put on non-overlapping disks (at least for my few 3rd-world cents). I'm using about 15% for /usr and the rest for /home in the smallest drive. I hope this doesn't slow the raid down too much... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message