X-Apparently-From:	<pmoran22 AT yahoo DOT com>
Message-ID:	<032c01c09dd5$7bb92520$34822a40@dbcooper>
From:	"Patrick Moran" <pmoran22 AT yahoo DOT com>
To:	<opendos AT delorie DOT com>
References:	<01FD6EC775C6D4119CDF0090273F74A4021F69 AT emwatent02 DOT meters DOT com DOT au>
Subject:	Re: Max. drive letter, etc. (was Hard Disk 20gb and dos)
Date:	Fri, 23 Feb 2001 12:39:21 -0700
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Reply-To:	opendos AT delorie DOT com

----- Original Message -----
From: "da Silva, Joe" <Joe DOT daSilva AT emailmetering DOT com>
To: <opendos AT delorie DOT com>
Sent: Friday, February 16, 2001 12:32 AM
Subject: RE: Max. drive letter, etc. (was Hard Disk 20gb and dos)


> Oh, yeah - that reminds me ... does anyone know for
> certain that this 24 drive limit is real, or are people
> simply assuming this because there are about 24
> letters (26 actually) in the English alphabet?
>
> I remember reading an old Micro$oft manual that
> said you could have *more* drive letters than there
> were letters in the alphabet, so that the drives above
> "Z:" would be "[:" and so on, as per the ASCII
> character set ...

There are probably drives that will do this. Hor example the one you
give above is used with Novell Netware, but that is basically it's own
operating system. This is a limitation of DOS and other MS OSes. DOS
only allows 24 HDs. I have tried those other characters and always get
an error.

Take Linux for example, You can have up to 16 partitions on each SCSI
drive and the drives go up to something sdh. With IDE, you can have up
to 24 partitions on each drive and they go to something like hdh. (I
don't recall the exact maximum drives in Linux without looking it up.
There are ways around these limits as well.)



> Speaking of other (possible) myths, I also vaguely
> recall reading somewhere that the often quoted
> statement, that "if you have two drives on an IDE
> cable, then the slowest drive will determine the
> speed (transfer rate) of both drives", is a myth ...

That is not a myth, or at least at one time that was true. I believe I
read that in the docs that came with either Maxoverdrive or Rocket Drive
software. I believe that was in refernce to mixing IDE and EIDE drives.
i.e. block mode setting has to be whatever the lowest one is capable of
and this can directly affect the transfer speed.

Pat



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