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Chapter 2. IBM Eserver BladeCenter overview 7
that is connected to the lower section of the midplane. All other components plug into one
section only (upper or lower). However, there is another matching component that can plug
into the other midplane section for redundancy.
Figure 2-2 Midplane view
It should be noted that the upper and lower midplane sections in an IBM Eserver
BladeCenter are independent of each other (see Figure 2-3). Having a dual midplane ensures
that there is no single point of failure and the blades remain operational.
Figure 2-3 Internal picture of the upper and lower midplane of the BladeCenter chassis
IBM
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BladeCenter™ - Midplane
Management
Module 1
Switch
Module
CPU
Blade
1
CPU
Blade
2
CPU
Blade
14
Blower
Blower
Power
Module
Power
Module
Power
Module
Power
Module
Front
Panel/Media
Tray
Midplane Upper Section
Midplane Lower Section
Management
Module 2
Switch
Module
Switch
Module
Switch
Module