Blair Campbell wrote:
Speaking of bugfixes, a person on FreeDOS IRC has mentioned many times
that the latest versions of HIMEM/EMM386 won't work with certain hard
drives, but will work with others. AFAIR, he also says that NOVDS
does nothing to change this.
Sorry, but "mentioning it on IRC many times" with zero technical
background is NOT the way to get these things working. This person needs
to post on here with exact FDCONFIG.SYS, controller model/firware,
hard-drive model, and definition of "won't work". For a start we need to
know whether they're talking about "hard drives" or "controllers"?
What we do know is this:
1. HIMEM is rock solid with a huge range of ATA/SCSI/SATA controllers
and just about any make of hard drive.
2. EMM386 with SCSI controllers and VDS enabled is completely unusable
and should never be tried outside the test lab.
3. EMM386 used with SCSI without VDS appears to work, but no one would
trust it in a business production environment, but for testing and home
PCs it seems fine.
4. EMM386 with IDE/ATA is probably fine, and anyway if the machine has
IDE/ATA it's probably not a very important machine.
5. EMM386 with SATA - I've never tested this.
If you have mission critical machines, they'll probably have SCSI and in
that case I'd recommend HIMEM with UMBPCI. I've tested this on a huge
range of hardware, servers, clients, SCSI, ATA, SATA and I've not seen a
single problem. It also gets round some strange issues you sometimes see
when the prog don't like prot-mode. One I can think of is Partition
Magic under DOS which does not like EMM386 to be loaded, complaining
there's only 32Mb of RAM because of it.
--
Gerry Hickman (London UK)
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