s142029@betty.ucdavis.edu (06/07/91)
From ucdavis!ucbvax!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!wuarchive!uunet!zephyr.ens.tek.com!uw-beaver!milton!serval!yoda.eecs.wsu.edu!wbonner Thu Jun 6 15:23:06 PDT 1991 Article: 1740 of comp.os.os2.misc Path: ucdavis!ucbvax!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!wuarchive!uunet!zephyr.ens.tek.com!uw-beaver!milton!serval!yoda.eecs.wsu.edu!wbonner From: wbonner@yoda.eecs.wsu.edu (Wim Bonner) Newsgroups: comp.os.os2.misc Subject: Re: HPFS on a Floppy ? Message-ID: <1991Jun6.183131.22948@serval.net.wsu.edu> Date: 6 Jun 91 18:31:31 GMT References: <13201@aggie.ucdavis.edu> Sender: news@serval.net.wsu.edu (USENET News System) Organization: Washington State University Lines: 18 In article <13201@aggie.ucdavis.edu> s142029@fred.ucdavis.edu writes: > > > > I am just wandering, since I haven't read the manual, but is it possible > >to format a floppy with HPFS on it ? I have tried > > It is not possible,. I think That they wanted to keep the Floppies Standard > so that you didn't think that the disks are blank and re-format them when > you are running DOS. It probably also has something to do with the buffering > system for HPFS that makes it work well, and the number of buffers used woud > basicly make it read the entore floppy when you first put the disk in and read > it. Then you get the fun of dealing with systems that don't properly do the > disk change lead thing. > > Wim > -- > | wbonner@yoda.eecs.wsu.edu |P.O.Box 2062cs |The Loft BBS > |27313853@wsuvm1.csc.wsu.edu|Pullman WA 99165|Currently down for the summer. > | 72561.3135@CompuServe.com |(509)334-4626 |USR HST Dual Standard HST/V.32 > Do you mean absolutely impossible. I was thinking about trying to fool FORMAT.COM into thinking the floppy drive is another fixed disk. I don't know much about HPFS file structure organization, so clarify it for me. I was hoping to patch FORMAT.COM or getting OS/2 to think that the floppy drive is a fixed disk with 2 heads, 80 cylinders, 9 sectors per track. How about that ? Anyone know about this ? Larry (IBM) ? ... T. Huynh PS : What was that IBM toll-free number for complaints and concerns again ? I missed it ?
U39648@uicvm.uic.edu (Darius Vaskelis) (06/07/91)
> Do you mean absolutely impossible. I was thinking about trying to fool >FORMAT.COM into thinking the floppy drive is another fixed disk. I don't know >much about HPFS file structure organization, so clarify it for me. I was >hoping to patch FORMAT.COM or getting OS/2 to think that the floppy drive is >a fixed disk with 2 heads, 80 cylinders, 9 sectors per track. How about that >? Nope. Last I checked, I think the minimum size for an HPFS partition was 14M. Bummer, eh? And might I add, HPFS on a floppy would suck, bigtime, in terms of performance. FAT was designed for floppies, and HPFS is designed for hard disks. Imagine your floppy files being shuffled around to keep them contiguous while you tried to work... you might accidently remove the floppy while it's being played with. More interesting, I want to hear about the rumor that the newer and improved FAT file system that IBM has designed for the commercial release of OS/2 2.0 is FASTER than HPFS in some circumstances! Any truth to this, people-in-the-know? - Darius ========================================================================= BITNET: U39648@UICVM | "I'd rather laugh with the sinners Internet: u39648@uicvm.uic.edu | than cry with the saints, ====================================| the sinners are much more fun, "Don't set fire to strangers." | and only the good die young." - Mr. Zarniwoop | - Billy Joel
cs_b144@ux.kingston.ac.uk (Ian Stickland) (06/10/91)
Why do you want HPFS on a floppy anyway ?? I was under the impression that HPFS only gave significant performance gains on large drives anyway. Apart from the long filenames which get preserved when you transfer to another HPFS partition, I don't see the point. Also, how can you buffer a floppy when there is no guarantee that a) it will be the same floppy next time you use the drive and b) the write cache might try flushing it's buffers after you've removed it. Ian Stickland.
yee@aix01.aix.rpi.edu (Crimson Avenger) (06/17/91)
>> It is not possible,. I think That they wanted to keep the Floppies Standard >> so that you didn't think that the disks are blank and re-format them when >> you are running DOS. It probably also has something to do with the buffering >> system for HPFS that makes it work well, and the number of buffers used woud >> basicly make it read the entore floppy when you first put the disk in and read >> it. Then you get the fun of dealing with systems that don't properly do the >> disk change lead thing. >> Someone wrote that, sorry, I didn't get the author's name. That talk about worrying about formating HPFS and DOS thinks they are blank diskette is *SILLY*. The problem is that IBM/MS-DOS doesn't recognized HPFS format. It's JUST a simple matter of putting the recognition of the HPFS format on MD-DOS, ( maybe MS-DOS 5.01) and then the files can be seen. Someone at Microsoft/IBM can just insert a routine to say if diskette can't be read, then check for HPFS. IF not HPFS then disk format unknown. Disk buffering is just reading consecutive number of tracks into memory (memory buffer) and hope that the next read will come from memory instead of going to the track. It has no bearing on HPFS. There should be no reason, technically that I see for not having HPFS floppies. -- -- Robert aka Crimson Avenger (yee@rpi.edu or crimson_avenger@mts.rpi.edu) Once a hacker, always a hacker. (usere3jp@rpitsmts.bitnet)
taj@cunyvms1.gc.cuny.edu (06/20/91)
1-800-ps2-2227 Good luck with "live" recorded messages, you'll need it !