AT&T 6300+ add-in disk problem!
george.p.wilkin
gpw at cbnewsc.ATT.COM
Thu May 25 08:49:14 AEST 1989
>From article <1537 at cunixc.cc.columbia.edu>, by wilson at cunixc.cc.columbia.edu (Samuel Wilson):
> Ahem. This friend of mine... has an AT&T 6300+ with an extremely
> awkward disk configuration: it has a Western Dig. WX1002 controller
> (i.e. an 8-bit card), a miniscribe 40 meg drive, and DiskManager
> software. Under AT&T DOS 3.2 the performance is *terrible* -- about
> .5 the speed of an IBM-XT according to Norton SI v.4. The disk is
> fast enough, and the computer is fast enough, but the controller card
> / Diskmanager software / DOS version / ROM version software is a disaster.
DO YOU(er I mean your friend) HAVE THE CORRECT DISK INTERLEAVE
I have found this to be sooo far off befor that you would do well to check it.
How do I do this?? Spinwrite or the mace utilities Hoptimum will do it
for you...... YOU WILL HAVE TO BACK UP DATA FIRST....
Interleave on 6300s with 40 megers has been in the 4-7 range. A plus
could go as low as a 2 interleave. DON'T assume someone did this
for you. If you must use external rom code also consider a program
called RAMIT, it takes the romed code and caches it into ram on the motherboard
improving performance greatly..
george
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