Wren III-182 question

George Robbins grr at cbmvax.UUCP
Tue Mar 1 05:06:11 AEST 1988


In article <870 at bigtex.UUCP> james at bigtex.UUCP (James Van Artsdalen) writes:
> In article <3371 at cbmvax.UUCP>, grr at cbmvax.UUCP (George Robbins) writes:
> 
> I forgot to mention it in my original article, but the Wren III-182 I have is
> an ESDI drive, and therefore knows how many heads/cylinders/sectors-per-track
> it supports.

In this case it seems likely that it is a special order "OEM" version.  There
is probably a control microprocessor that is programmed slightly differntly
so that it returns the "fradulent" geometry information.  You might try to
compare the drive to a "normal" unit and see if there is a micro-processor
or ROM that has different part number/version identification on it.

It may not be that easy to get CDC to "fix" the unit.  In this case, you
might try patching the driver or playing games to force it to use the
"native" geometry...

-- 
George Robbins - now working for,	uucp: {uunet|ihnp4|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr at uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)



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