werner@aecom.yu.edu (Craig Werner) (02/15/90)
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."