Sun Microsystems Enterprise 10000 System Upgrade Instructions page 11

3. If using SSP version 3.0, restore the system boards thermal calibration data.
See "Restoring the Thermal Calibration Information Using SSP Version 3.0" on
page 9."
Restoring the Thermal Calibration
Information Using SSP Version 3.0
This procedure is performed automatically by SSP version 3.1.
The system boards and centerplane contain ASICs which require thermal calibration
data in order for the SSP software to correctly report temperature data. The initial
thermal calibration of the system boards and centerplane is done during the
manufacturing process using the thermcal(1M) command. The resulting thermcal
calibration data is then written to EEPROMs resident on the boards. Once done, the
thermcal(1M) procedure need not be repeated.
The SSP software requires the correct thermal calibration data for each system board
and centerplane resident in the system. A data file containing this information is
created by the thermcal_config(1M) command. In order for this data file to be
correct, thermcal_config(1M) must be executed during SSP software installation
or when system boards or centerplanes are replaced, added, or moved to new slots.
Failure to execute this procedure in these cases will prevent the SSP software from
correctly monitoring the system's temperature.
1. Type:
% edd_cmd -x stop
This stops the edd daemon monitoring scripts.
Installing 336-Mhz Processor Modules into a Enterprise 10000 System 9