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From: twg0214@uxa.cso.uiuc.edu
Newsgroups: comp.os.os2.misc
Subject: 1024 cylinder limit in 1.2
Message-ID: <135200001@uxa.cso.uiuc.edu>
Date: 3 Aug 90 14:54:00 GMT
Lines: 17
Nf-ID: #N:uxa.cso.uiuc.edu:135200001:000:857
Nf-From: uxa.cso.uiuc.edu!twg0214    Aug  3 09:54:00 1990


HPFS and 640 Mbyte disk
A number of articles on OS/2 1.2 stipulated that HPFS removed any
disk size limits. Therefore, I did not hesitatate to buy a
386/33 clone with a 640 Mbyte ESDI disk. The disk was formatted 
as a single partition under DOS 4.01. However, OS/2 could not recognize 
the drive. The same was happening when I erased the DOS partition and	 
attempted to create the HPFS partition. Then I read carefully a manual 
of my ESDI controller. It said that OS/2 can't recognize disks with more 
than 1024 cylinders which limits the size of the disk to about 508 Mbytes.
After low-level format of my disk to 1024 cylinders (and losing 132 Mbytes)
OS/2 installed nicely as either FAT or HPFS partition. Apparently, the
1024 cylinder limit is still in 1.2.  Does anybody know if this limit will
gone in 1.21 or 2.0?  

Ignacy Misztal
ignacy@uiuc.edu