Fujitsu IRMC S2/S3 Manual De Usuario

iRMC S2/S3

 23

The IPMI initiative resulted in three central standards:

–

describes the higher-level architecture, the current commands, event 
formats, data packets and properties that are used in IPMI-based systems.

–

is an I

2

C based (write only) bus, which provides a standardized connection 

between various modules in a common housing.
IPMB can also be used as a standardized interface for remote management 
modules.

–

(Not currently implemented in the ServerView remote management 
environment.)
provides a standardized interface for exchange of platform management 
information and for control across systems. ICMB is designed in such a way 
that it can be implemented with a device that is connected to the IPMB.

The core element of an IPMI implementation is the Baseboard Management 
Controller (BMC).
The BMC performs the following tasks:

–

The BMC organizes the interface between the system management 
software and the platform management hardware.

–

It provides autonomous functions for monitoring, event logging and recovery 
control.

–

The BMC acts as a gateway between the system management software and 
IPMB.

IPMI allows platform management to be extended: Additional management 
controllers can be connected via the IPMB. The IPMB is an I

2

C based serial 

bus, which runs between the main modules of the system. It is used for 
communication with and between the management controllers.

With the support of multiple management controllers, IPMI provides a scalable 
architecture: A complex server system can use multiple controllers for 
monitoring different subsystems, e.g. power supplies, hot swap RAID drive 
modules etc.