From owner-freebsd-questions Sun Jan 10 01:23:26 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id BAA22836 for freebsd-questions-outgoing; Sun, 10 Jan 1999 01:23:26 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id BAA22831 for ; Sun, 10 Jan 1999 01:23:23 -0800 (PST) (envelope-from grog@freebie.lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.9.1/8.9.0) with ESMTP id TAA06858; Sun, 10 Jan 1999 19:52:49 +1030 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.1/8.9.0) id TAA15956; Sun, 10 Jan 1999 19:52:47 +1030 (CST) Date: Sun, 10 Jan 1999 19:52:47 +1030 From: Greg Lehey To: Dan Busarow Cc: "Michael G." , "freebsd-questions@FreeBSD.ORG" Subject: Re: FreeBSD Cluster Size Message-ID: <19990110195247.X8886@freebie.lemis.com> References: <199901100629.GAA119060@out4.ibm.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.1i In-Reply-To: ; from Dan Busarow on Sat, Jan 09, 1999 at 10:37:38PM -0800 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Saturday, 9 January 1999 at 22:37:38 -0800, Dan Busarow wrote: > On Sun, 10 Jan 1999, Michael G. wrote: >> By cluster I was using the minimum data storage size >> measurement used by FAT-16, FAT-32, HPFS, and NTFS. Well, I suppose for those file systems it's the same. But we only use them for Microsoft compatibility. >> i.e. for a FAT-16 based drive the minimum cluster size is based on >> the size of a FAT partition. Now USF uses partitions to mean the >> same thing..so I was looking for a cluster standard. > > I believe that a UFS fragment would correspond to a FAT cluster. > The default value for fragments is 1024 bytes and is independent > of the filesystem size. It's dependent on the block size, though. If you have a file system with lots of small files, you can save by allocating 4 kB blocks and 512 byte frags. Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message