Date: Sun, 10 Jan 1999 19:52:47 +1030 From: Greg Lehey <grog@lemis.com> To: Dan Busarow <dan@dpcsys.com> Cc: "Michael G." <mikegoe@ibm.net>, "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG> Subject: Re: FreeBSD Cluster Size Message-ID: <19990110195247.X8886@freebie.lemis.com> In-Reply-To: <Pine.BSF.3.96.990109223458.19191A-100000@java.dpcsys.com>; from Dan Busarow on Sat, Jan 09, 1999 at 10:37:38PM -0800 References: <199901100629.GAA119060@out4.ibm.net> <Pine.BSF.3.96.990109223458.19191A-100000@java.dpcsys.com>
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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
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