5.40 LEGACYSENSEID (SENSE ID CCW (x'E4') feature)
5.40.1 Function
This option specifies whether the SENSE ID CCW (X'E4') will be honoured for the devices that originally
did not support that feature. This includes (but may not be limited to) 3410 and 3420 tape drives, 2311
and 2314 direct access storage devices and 2703 communication controllers. Because those legacy
devices didn't originally support this command, and for compatibility reasons, the default is OFF or
DISABLE.
Specify ON or ENABLE, if your guest operating system needs the Sense ID support to dynamically detect
those devices. Note that most current operating systems will not detect those devices even though Sense
ID is enabled because those devices never supported the Sense ID in the first place. This mainly applies
to custom built or modified versions of guest operating systems that are aware of this specific Hercules
capability.
5.40.2 Syntax
Descriptive
OFF
Diagram
Êʬ¬¬ ¬¬¬§¬¬¬¬¬ OFF ¬¬¬¬¬§¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ÊÍ
¬¬¬«
5.40.3 Parameter
OFF
Specify OFF or DISABLE if your guest operating system does not need the Sense
ID support to dynamically detect devices that originally did not support that feature.
This is the default.
DISABLE
This is the same os ‘OFF’.
ON
Specify ON or ENABLE if your guest operating system needs the Sense ID support
to dynamically detect devices that originally did not support that feature.
ENABLE
This is the same as ‘ON’.
