Fujitsu PRIMEQUEST 480 System Design Manual page 108

CHAPTER 4 Hardware System Management
The MMB manages the mounted components (SBs, IO_Unit, chip sets, power supply
units, fans, LANs, etc.) and partitions, and controls the system clock, management
LAN and private LAN, and PCI_Box. The MMB sets various types of operations
such as console redirection, KVM switching, and mirror mode. These functions can
be operated from the MMB Web-UI.
As shown in
the LANs. The MMB is also connected with various types of sensors through the
internal bus. The MMB firmware always monitors and manages the entire system by
linking with the BMC firmware mounted in the IO_Unit for each partition, the GSWB
firmware operating in the GSWB, and the PSA installed in each partition, by using the
networks in the cabinet.
The PSA, software that runs on Linux or Windows, manages the partitions.
The PSA monitors the state of the SB and IO_Unit forming the partition, and the
configuration and state of the connected hardware units.
Monitoring targets include all of the hardware units incorporated in the partition such
as the CPUs and memory of the SB, the HDDs and PCI slots of the IO_Unit and, if the
PCI_Box is connected to the IO_Unit, the PCI card to which the PCI_Box is
connected.
The PSA of each partition, operating independently of the PSAs in the other
partitions, links with the MMB. The PSA is operated from the MMB Web-UI.
The GSWB is a switching hub unit that manages the business LAN. The GSWB links
with the MMB and is operated from the MMB Web-UI.
To monitor the hardware, information is exchanged by using an information path
separated from the information path of the business system, that is, the private LAN
and management LAN. Not depending on the business system, a particular
information system with extensive multiple connections encompassing the hardware
unit is used. More specifically, various types of firmware around the MMB firmware
acquire information detected by the OS and various types of drivers and information
detected by various types of sensors and prompts users to take corrective action if
necessary.
Monitoring items are set and changed and details such as management values are set
from the MMB Web-UI.
Each partition has console information. This console information is input from and
output to the COM port of the IO_Unit incorporated in the partition.
4-2
Figure 4.1, the MMB is connected to each hardware component through
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