Compaq StorageWorks HSZ80 Configuration And Cli Reference Manual page 293

5–107
The EMU instructs the fans to operate at high speed when any of the temperature
setpoints are exceeded or when one or more fans are not functioning.
Examples
This example shows how to set EMU sensor number 2 to 34°C:
SET EMU SENSOR_2_SETPOINT=34
This example shows how to set the EMU fan to operate at high speed:
SET EMU FANSPEED=HIGH
See also
SHOW
Compaq HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide