Re: Is max HPFS drive size only 2 GB?

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Article #17186

#17186

From: goff4923
Date: Fri, 15 Sep 1995 00:00

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In <43a7vt$aat@News1.mcs.net>, itsinc@mcs.com writes:
>	I found this quote in OS/2's README file today, and I need to know
>if it's right.  I was 99% sure HPFS could support larger drives.
>
>	If this is true, can HPFS386 (from LAN Server) handle larger drives?
>
>Steve
>
>

Here are the limitations for fat and hpfs under OS/2:


The FAT file system, when implemented under OS/2 2.x and 3.0, has the following capacities: 

	Number of physical drives:       	24 (SCSI)
	Number of partitions:            	16
	Number of logical drives:        	24 (C:through Z:)
	Size of partition:               		2GB
	Sector size:                     		512 Bytes
	Cluster (allocation unit) size:  	Normal 2KB; Range  1KB - 64KB, depending upon disk size.
	File size:                       		2GB
 
Note:  	ESDI hard drives have a 528MB limitation due to the physical to logical head/sector conversion geometry.  
	This limit is not a function of OS/2, but rather it is a result of the hard drive hardware design.   

OS/2 HPFS file system capacities and limitations 
 
The HPFS file system, when implemented under OS/2 2.x and 3.0, has the following capacities: 

	Number of physical drives:    	24 (SCSI)
	Number of partitions:         		16
	Number of logical drives:     	24 (C:through Z:)
	Size of partition:            		64GB
	Sector size:                  		512 Bytes
	Block (allocation unit) size: 	512 Bytes
	File size:                    		2GB
 
Note:  	ESDI hard drives have a 528MB limitation due to the physical to logical head/sector conversion geometry.  
	This limit is not a function of OS/2, but rather it is a result of the hard drive hardware design.   

Jim

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From: goff4923@nova.gmi.edu
Subject: Re: Is max HPFS drive size only 2 GB?
Date: 1995/09/15
Message-ID: <43ba3k$aem@wheel.gmi.edu>
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