🚀 go-pugleaf

	About a month ago, I posted that I had a spare 1/2H drive bay, 
and a spare cable leading from (what I thought was) an MFM controller, and
asked the  question, "What is the biggest drive I can put in there?"

	A month of research yield the following, hopefully useful
information:

	Several up to 71M
	Imprimis CDC Wren III 92M/18ms  -- the largest specifically put
in the MFM category.

	However, I checked my drive. It is a Conner CP344 (a 3.5 inch
drive sitting on a 5.25 inch tray) and this drive is usually listed under
AT/IDE controllers, so adding that category gives:

	Imprimis Wren VI 	230M/15ms
and	Connor CP-3104:		100M/25ms
	Connor CP-3204:		200M/19ms

	I don't really know the technical difference between MFM and
AT/IDE, although given a few seconds, I could recite what the acronyms
stand for.

	Now, I am also under the impression that ESDI drives use the same
interupt as MFM and IDE controllers,, so that installing an ESDI
controller means sacrificing existing drives.  I am also under the
impression that SCSI is not subject to the same conflict.  So, if one
adds SCSI drives for consideration, the set from Micropolis looks
intriguing:
	Micropolis	MC1654/74	160Mb
	Micropolis	MC1558/68-15	320Mb
	Micropolis	MC1568-15D	660Mb
Of course, these are not 1/2 height.

	If I got anything wrong I'd appreciate being corrected. Also
correction of ommissions and experiences would be welcome.
-- 
	        Craig Werner   (future MD/PhD, 4.5 years down, 2.5 to go)
	     werner@aecom.YU.EDU -- Albert Einstein College of Medicine
              (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517)
                           "Trust me. I'm almost a doctor."