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Article #6580

Re: Number of subdirectories limited ?

#6580
From: Allen J Michielsen
Date: Thu, 19 Nov 1992 00:43
27 lines
2053 bytes
In article > mccall@mksol.dseg.ti.com (fred j mccall 575-3539) writes:
>In > jav2d@faraday.clas.Virginia.EDU (Jason Adams Vanvalkenburgh) writes:
>>ernst@opal.cs.tu-berlin.de  writes:
>>> I know there is a limitation on the number of subdirectories in the
>>> root directory, but is there any limitation in directories other
>>> than "\" ?
>>> Ernst Kloecker phone: ++49-30-6181635      e-mail: ernst@cs.tu-berlin.de

>>The FAT system only allows a maximum number of file entries.  I'm not
>>sure about numbers, but I remember reading that a 360K floppy couldn`t
>>have any more than 112 file entries.  Therefore 112 0-byte files would
>>actually fill up the disk, because the FAT tables were full.  Larger
>>capacity disks have proportionally more space allocated for the FAT
>>tables, etc.  I had never heard of limitations for the root directory,
>>though.

>Just backwards.  The root directory is the ONLY one with a limit. ..
>...Once you are off the root directory, the 'directory listing'
>is just another file, and it can be however large a file is allowed...

One more piece of this, is that 360K system disks have a limit of 112 files,
114 for non-system disks.  However, in eithercase...   The root FAT can also
run out of room.  This occurs when you have lots and lots of little files and
the disk is heavily fragmented.  This (probably) is impossible for a 360K
floppy but not for other disks.  But, again, subdir's help to eliminate this.

al
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Message-ID: <1992Nov18.194342.20953@newstand.syr.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!rpi!psinntp!psinntp!newstand.syr.edu!rodan.acs.syr.edu!amichiel
References: <1992Nov17.111130.17833@cs.tu-berlin.de> <1992Nov17.195401.772@murdoch.acc.Virginia.EDU> <1992Nov18.004253.3704@mksol.dseg.ti.com>

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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!rpi!psinntp!psinntp!newstand.syr.edu!rodan.acs.syr.edu!amichiel
From: amichiel@rodan.acs.syr.edu (Allen J Michielsen)
Subject: Re: Number of subdirectories limited ?
Message-ID: <1992Nov18.194342.20953@newstand.syr.edu>
Organization: Syracuse University, Syracuse, NY
References: <1992Nov17.111130.17833@cs.tu-berlin.de> <1992Nov17.195401.772@murdoch.acc.Virginia.EDU> <1992Nov18.004253.3704@mksol.dseg.ti.com>
Date: Wed, 18 Nov 92 19:43:42 EST
Lines: 27