Gets information about an FZ unit LUN one may which will load the communication area
COMMON /FZSTAT/ INFLUN, INFSTA, INFOFZ(40)
with
INFLUN = LUN if success,
= 0 if unit LUN was not found, in which case
the rest of the information is useless.
INFSTA = a copy of the status word and
INFOFZ = the first 40 data words of the FZ control bank for LUN.
Details about the significance of the returned information are found below.
The lay-out of the control-bank has changed with version 3.66.