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Article View: comp.sys.ibm.pc.hardware.storage
Article #156

Re: Using a 4G SCSI disk under DOS ? (how?)

#156
From: The Mu-Meister
Date: Tue, 26 Dec 1995 17:03
33 lines
2139 bytes
Craig Faichney (craigf@inforamp.net) spoke thusly:

: >You have to enable >1GB on your SCSI contoller.
: >Then you can use fdisk to create 2 2GB partitions. DOS can't handle
: >more than 2GB, but 2 partions are OK. Create a primary partion of
: >2GB, then an extended partion using the rest. Works fine for me.

: Why the 2 GB limit? DOS, as long as you fiddle with the BIOS to get
: over the >540 MB limitation, should handle any size drive. Yes? No?

: Now, Win95 is another story. Why they went for that 2 gig limit when
: drives are already at the 1.6 gig mark, I'll never know.

The FAT system only has enough bits for 2GB worth of partitions - it's four 
bytes of whatever, kinda like the 10bits causing the 1024 cylinder limit 
(though that's a BIOS thing). FAT was never designed with huge drives in mind.

Win95 uses V-FAT, I think they call it, virtual FAT. Same limits.

Linux, HPFS or NTFS, and Novell are all "solutions" :)

--
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Path: arc1-ca.pugleaf.net!news.emf.net!dremu
From: dremu@emf.net (The Mu-Meister)
Newsgroups: comp.sys.ibm.pc.hardware.storage,comp.periphs.scsi,comp.os.msdos.misc
Subject: Re: Using a 4G SCSI disk under DOS ? (how?)
Followup-To: comp.sys.ibm.pc.hardware.storage,comp.periphs.scsi,comp.os.msdos.misc
Date: 26 Dec 1995 17:03:23 GMT
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