Shmuel Metz (Seymour J.) wrote:
In
<77142d37c0c3c34da0d7b1da7d7ca343c4e...@nwt-s-mbx1.rocketsoftware.com>,
on 08/02/2010
at 03:01 PM, Bill Fairchild <bi...@mainstar.com> said:
I assume this is how IBM did it before they had debugged the E4
command.
Did IBM ever do device discovery before then?
Of course, you also had to remember that there was one 230x DASD
that IBM made that had around 96 or 100 "tracks" per cylinder (a
drum, maybe?),
The 2301 and 2303 were drums; I don't recall the geometry.
The 2302 was also an oddball device, with rather strange geometry.
Rick
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