NAT-MCH Users Manual Version 1.16
NAT-MCH Users Manual Version 1.16
NAT-MCH Users Manual Version 1.16
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<strong>NAT</strong>-<strong>MCH</strong> – <strong>Users</strong> <strong>Manual</strong><br />
The System management software (SMS) is running on a host system that communicates via<br />
the Remote management control protocol (RMCP) over Ethernet with the <strong>MCH</strong>. The <strong>MCH</strong><br />
itself implements base management controller (BMC) functionality and communicates via<br />
IPMI messages over I2C with hardware modules (e.g. Cooling Units, Power Modules, AMC<br />
cards) that run hardware module specific software.<br />
The next figure gives an example for a software implementation that uses a graphical JAVA<br />
application running on top of the OpenHPI (see 7.3.3) middleware on the host system:<br />
Figure 5 : Software structure details<br />
The system management software is described more detailed in the following chapters.<br />
The software on the <strong>MCH</strong> can be divided up into two parts: first a layer structured stack that<br />
implements the interfaces to external systems (host and hardware) and the message handling,<br />
and second helper modules to save data (IPMI data base, FRU inventory, SDR repository,<br />
SEL) and communication information (session management). Shelf Manager capability is<br />
optional and can be configured (see 5.4) to allow usage of an external shelf manager, e.g. on a<br />
<strong>Version</strong> <strong>1.16</strong> © N.A.T. GmbH 41
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