
Chapter 2. General description 31
The key features on the rear of the BladeCenter S are:
Four hot-swap blower modules as standard.
One hot-swap management-module bay with one management module as
standard.
Four I/O bays for standard switch modules (bays 1, 3, and 4 can be used for
installing I/O modules, bay 2 is reserved for future use).
One pair of 950/1450-watt power modules. An additional power module
option (configured in pairs of two 950/1450 W feature 4548 power modules) is
available.
One bay for a serial pass-through module to give a direct serial connection to
installed blades (for those blades with the functionality).
Figure 2-6 BladeCenter S rear view
The BladeCenter S chassis allows for either six single-slot blade servers or three
double-slot blade servers. However, you can mix different blade server models in
one chassis to meet your requirements.
The BladeCenter S chassis ships standard with an Advanced Management
Module. This module provides the ability to manage the chassis as well as
providing the local KVM function. Only one management module is supported
with a BladeCenter S chassis.
The BladeCenter S chassis does not ship standard with any I/O modules. You
choose these I/O modules based on your connectivity needs. An Ethernet Switch
Module (ESM) is required in I/O module bay 1, to enable the use of both Ethernet
ports on a blade server. The I/O modules required in I/O module bays 3 and 4 will
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