Wren III-182 question

[Chris R. Lewis]

In article <3391 at cbmvax.UUCP> grr at cbmvax.UUCP (George Robbins) writes:
|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:
|> 
|> [ ESDI drives know their own geometry ]
|
|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...

I'm pretty sure these things have EPROMs on them which contain the geometry
along with the bad zone list.  You might be able to simply order a new
EPROM from CDC - though if the bad zone list is there you may have to figger
out the bad spots yourself.
-- 
Chris Lewis, Spectrix Microsystems Inc,
UUCP: {uunet!mnetor, utcsri!utzoo, lsuc, yunexus}!spectrix!clewis
Phone: (416)-474-1955