User's Guide

25
Cooling Management
While the CPU blade is powered on, the amount of necessary cooling air changes according to the
temperature condition. The EM card determines the rotation speed of the fan according to the installed
number of fan units and others, and controls the fan so that it rotates in optimum speed.
TIPS:
Depending on the installed number of fan units and CPU blades and their installed locations, when the
EM card judges that the cooling capacity is insufficient, it may not permit the power-on of CPU
blade.
In such a case, check the fan units and CPU blades so that they are appropriately installed.
Interface Management between CPU Blade and Switch Module
If the CPU blade is incorrectly connected with the switch module, it will be damaged. EM card checks
the interface between them to prevent this damage. If the interface is improper, the EM card suppressed
power-on of the relevant CPU blade and the switch module, or disable the connection port.
TIPS:
For connection between the CPU blade and switch module in the Blade Enclosure, refer to the User‟s
Guide of the switch module.
Chassis Information Management
The EM card manages the names of the rack, a Blade Enclosure, CPU blades, and switch modules.
Except for CPU blade name, they are specified in a configuration file.