Time: Tue Jun 03 05:22:51 1997 by primenet.com (8.8.5/8.8.5) with SMTP id FAA14909; Tue, 3 Jun 1997 05:15:52 -0700 (MST) Date: Tue, 03 Jun 1997 05:12:42 -0700 To: timr@efn.org From: Paul Andrew Mitchell [address in tool bar] Subject: SLF: FAT16 problem: demonstration and proof References: <3.0.1.16.19970603041137.2b5f5d34@pop.primenet.com> Tim, Thanks for pointing out my error. I was mistaken for thinking that cluster size was 64KB on a large partition. I just checked my Western Digital owner's manual, and their table for cluster size says: 1024 - 2047 MB cluster is 32 KB So, my formula predicts 0.50 x 32 KB = 16 KB average waste per file, not 32 KB. I was trying to remember a similar table which I cut out of a computer magazine last fall, when I first encountered this overhead problem. I am afraid that page has walked out of my life, however! Thanks for the clarification. And do I apologize for the error. I should have looked it up first; I am getting too busy to dot my T's and I end up crossing my I's :) Have you done any of the experiments which I described in that message? /s/ Paul Mitchell http://www.supremelaw.com At 11:40 PM 6/2/97 -0500, you wrote: >Paul Andrew Mitchell wrote: >> >> Dear Friends, >> TOTAL WASTED SPACE, FAT16: 28,745 bytes per file >> ============ >> >> Your numbers may vary; the average will be >> closer to a mean waste per file of 32K >> (0.50 x 64K). > >Well, the won't really be 32K, since that IS the cluster size with large >partitioned disks and the FAT16 software. A cluster is the number of >bytes within a set of tracks addressable by a head movement, i.e, the >smallest addressable space for file storage. If you have a file which >is 269 bytes, it is stored within 32K and nothing else can get stored >there. If you have a file which is 33K, one full 32K cluster is used >plus another which has ONLY 1K in it, but cannot be used for any other >data. > >The old DOS used to partition disks with a 512 byte sector, so even if >you had a drive with 16 heads, you still only had a cluster size of 8K, >which was 4 times more efficient than the 32K cluster you get now. > >The real answer is to go to Windows 95B. A relatively new release which >contains FAT32. >> /s/ Paul Mitchell >> http://www.supremelaw.com >> >> >-- > ************************************************************* > A lie on the throne is a lie, still, and truth in a dungeon > is truth, still, and a lie on the throne is on the way to > defeat, and truth in a dungeon is on the way to victory. > -- Anonymous > ************************************************************* > "War is an ugly thing but not the ugliest of things; the > decayed and degraded state of moral and patriotic feelings > which thinks that nothing is worth fighting for is much > worse. A man who has nothing for which he is willing to > fight, nothing he cares about more than his personal > safety, is a miserable creature who has no chance of > being free unless made and kept so by the exertions of > better men than himself." --Anonymous. Seen on a poster > at a gun show. > ************************************************************* > (541) 895-4417 voice > (541) 895-4681 fax > timr@efn.org > > ======================================================================== Paul Andrew, Mitchell, B.A., M.S. : Counselor at Law, federal witness email: [address in tool bar] : Eudora Pro 3.0.2 on Intel 586 CPU web site: http://www.supremelaw.com : library & law school registration ship to: c/o 2509 N. Campbell, #1776 : this is free speech, at its best Tucson, Arizona state : state zone, not the federal zone Postal Zone 85719/tdc : USPS delays first class w/o this ========================================================================
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