The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main as well.


[EMAIL PROTECTED] (Rick Fochtman) writes:
> There are similar references for all the "newer" DASD since that time,
> as well. But they're hard to find.

i would be happy to update gcard section 
http://www.garlic.com/~lynn/gcard.html#26.3

if somebody can provide the info ... previous post
http://www.garlic.com/~lynn/2006v.html#28 MB to Cyl Conversion

gcard started out as ios3270 version of the green card. i've done a
very simple conversion to html.

for those that don't think they've seen ios3270 ... the service
processor on the 3090 was a pair of 4361s running a highly modified
version of vm/cms release 6 ... using ios3270 for the service screens.

and for something completely different ... i'm still looking for
code names for completing the following.

           2301       fixed-head/track (2303 but 4 r/w heads at time)
           2303       fixed-head/track r/w 1-head (1/4th rate of 2301)
Corinth    2305-1     fixed-head/track
Zeus       2305-2     fixed-head/track
           2311
           2314
           2321       data-cell "washing machine"
Piccolo    3310       FBA
Merlin     3330-1
Iceberg    3330-11
Winchester 3340-35
           3340-70
           3344       (3350 physical drive simulating multiple 3340s)
Madrid     3350
NFP        3370       FBA
Florence   3375       3370 supporting CKD
Coronado   3380 A04, AA4, B04
EvergreenD 3380 AD4, BD4
EvergreenE 3380 AE4, BE4
           3830       disk controller, horizontal microcode engine
Cybernet   3850       MSS (also Camanche & Oak)
Cutter     3880       disk controller, jib-prime (vertical) mcode engine
Ironwood   3880-11    (4kbyte/page block 8mbyte cache)
Sheriff    3880-13    (full track 8mbyte cache)
Sahara     3880-21    (larger cache for "11")
??         3880-23    (larger cache for "13")

... snip ... 

i believe most current dasd is really ckd emulated on FBA-based disks
... sort of the first would have been 3375.

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