Table 4-43, Hpi-b daemon log messages, Using hpi-b – Artesyn System Management Interface Based on HPI-B (Centellis 2000 R3.0/4411) User's Guide (June 2014) User Manual
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Using HPI-B
System Management Interface Based on HPI-B (Centellis 2000 R3.0/4411) User’s Guide (6806800P20C)
81
Following table describes the way to interpret these log messages.
The y values are filtered from the read sensor data. In this example the values vary in decimals, 
whereas the real read sensors may change in the +/-1 range.
User can interpret the following message to know the whereabouts of the sensor driving the 
new fan speeds. For e.g., as per the following log message the fan level 14 is driven by the 
sensor AF on IPMP address 9a, FRU ID 0, LUN Number 0. 
04:14:21.733 <debug> {ipmicooling}: New fan level 14 driven by
9a.0/0/af
(9a.0.0/af) means (IPMBAddress(9a).FruID(0).LUN(0)/SensorNumber(af))
Table 4-43 HPI-B daemon Log Messages
Code in log message
Name, Description
sp
Set Point for the control
y
Filtered value of read sensor
u
Calculated speed in %
xd
Difference of sp - y - tolerance
xdi
Integral
xdp
Differential
Damage of Blades and Shelf
The default configuration used for the cooling management provides optimized cooling of 
the shelf and all blades/FRUs in it. Changing the configuration may lead to poor cooling and 
thus damage of the shelf and blades/FRUs in it. Therefore we strongly recommend not to 
change the configuration. 
If you decide to change the standard configuration, after all, then this should be done in 
close coordination with your local Artesyn representative.