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Article #34412

Re: FDISK

#34412
From: Tom Bird
Date: Tue, 13 Apr 1999 00:00
25 lines
1712 bytes
In article <923681977snz129.os2.7@sunshine.tm>, Richard Ashton
<{R}@sunshine.tm> writes

>2a) 2.147Mb. There is BIOS issue with LBA drives that cannot go past
>    4097 cyls.
>
>2b) 2GB? There is a specific maximum DOS partition size caused by ?

FAT16.  The maximum number of clusters is 65536 (16 bit) and the maximum
size for these is 32768 bytes.  65536 * 32768 = 2147483648

>3) 8.4Gb. DOS 6.xx and earlier also Windows 3.1 cannot see past 8.4Gb, why?
Also, original Win95 can't.
>          NT4 with SP3 does recognise drives > 8.4Gb
>          Novell 4.11 needs drivers to see past 8.4Gb
>          Novell 5 supports 8.4Gb drives and bigger
>          OS/2 Warp needs a fix to see past 8.4Gb
OS/2 Warp needs a fix, full stop.

I think it's a LBA thing, when they broke the 504Mb barrier (with LBA),
they decided that the next barrier would be 8Gb but as it was
*impossible* that anyone should want more than 1 or 2Gb, they decided to
cross that bridge when they got there.  They got there last year.

TB
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From: Tom Bird <hamster@nospam.demon.co.uk>
Subject: Re: FDISK
Date: 1999/04/13
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