On Tue, 27 Jun 2006, Teo Zenios wrote:
I was wondering if there were any drivers or utils
available that would
allow a DOS or Win3.1 machine to have drive partitions over 2GB? I know
old IDE controller had hardware limitations to the drive size they can
read (BIOS issues also) but would there be a problem with raiding SCSI
drives on say an old Adaptec card to give you 20GB of space that DOS
could read and write to (non booting)? I am not worried about DOS being
modified so that the individual file size can be extended, just the
available partition size so I don't have a dozen 2GB partitions.
At one time, there were patches available to correct the
error and permit some versions of MS-DOS to go to 4G.
BUT, some application programs (such as "Norton fUtilities"?)
also didn't grasp the difference between a signed and unsigned
long int.
(Early versions of DOS would permit having a drive or file that
was -2G! But, copying a -2G file to your hardwrive did NOT
increase the free space.)
DOS >= 7 can handle FAT32. But, if you do, I'd suggest
a 2G first partition followed by a 198G second partition.
DOS CAN handle a larger partition, not as a local drive,
but as a network drive. That's what MSCDEX is for - if
you ever try to CHKDSK a CD-ROM (2/3G), DOS will tell you
that that can't be done on a Network Drive!
About 7? years ago, there was a "CD-ROM" emulator, that
permitted accessing a hard drive through MSCDEX. It was
so that you could copy a CD-ROM onto a hard drive, for
faster speed, and some "only work from the CD-ROM" copy
protection.
There are a number of third party "device drivers" that
are specifically for using drives >2G. Didn't WD give
out one of those?
Watch out; some might want to make your cluster size way too big.
Even if you succeed, you might want to consider keeping one,
preferably the first, partition <2G (so that there is SOMEWHERE
on the drive that can be accessed by OS's and program that
"still don't get it".
There are drivers made for Mac systems that would
allow system 7.x to
use volumes up to a couple TB when Mac OS 7.x could not have greater
then 2GB partitions so I figured there might be something like that for
the DOS machines.
Yes, there were such. But the Mac OS 7.x ones will NOT work on the PC :-)
--
Grumpy Ol' Fred cisin at
xenosoft.com