Binyamin Dissen wrote:
X’3010200E’ = 3380 DISK DEVICE CODE
Where is the table defined?
There is no one table. The basic information is similar, but not
identical to, fields UCBTBYT1-UCBTBYT4 in macro IEFUCBOB.
UCBTBYT3 (the x'20' above) is the device category, DASD in this
case. These are defined in the UCB macro.
UCBTBYT4 (x'0E') is the device type, 3380 in this case.
The leading two bytes are device dependent, and may describe
device characteristics and optional features (e.g., shared
DASD). Some are in the UCB macro, most are not. They're
scattered in documentation all over the place, usually hardware
manuals or application notes.
Gerhard Postpischil
Bradford, VT
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