HP Superdome SX2000 User Service Guide, Seventh Edition - HP Integrity Superdo - Page 25

Compact Flash, HUCB, Management Processor

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Figure 1-4 Management Processor The SBCH provides the physical and electrical interface to the SBC, the fanning out of the USB to internal and external subsystems, and a LAN 10/100BT ethernet connection. It plugs into the HUCB and is hot-swappable. Every CPU cabinet contains one SBCH board, but only one SBCH contains an SBC board used as the MP for the complex. The remaining SBCH boards act as USB hubs. The SBC board is an embedded computer running system utility board (SUB) firmware. It is the core of the MP. It plugs into the SBCH board through a PC104 interface. The SBC provides the following external interfaces to the utility subsystem: • LAN (10/100BT ethernet) for customer console access • RS232 port for local console access for manufacturing and field support personnel The modem function is not included on the SBC and must be external to the cabinet. Compact Flash The Compact Flash is a PCMCIA-style memory card that plugs into the SBC board. It stores the MP firmware and the customer's MP configuration parameters. The parameters stored in the compact flash are as follows: • Network configurations for both the public and private LANs • User name and password combinations for logging in to the MP • Baud rates for the serial ports • Paging parameters for a specified alert level • Configurable system alert parameters HUCB The HUCB, shown in Figure 1-5, is the backplane of the utility subsystem. It provides cable distribution for all the utility signals except the clocks. It also provides the customer LAN interface and serial ports. The support management station (SMS) connects to the HUCB. The system type switch is located on the HUCB. This board has no active circuits. It is not hot-swappable. Utilities Subsystem 25

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Figure 1-4 Management Processor
The SBCH provides the physical and electrical interface to the SBC, the fanning out of the USB
to internal and external subsystems, and a LAN 10/100BT ethernet connection. It plugs into the
HUCB and is hot-swappable. Every CPU cabinet contains one SBCH board, but only one SBCH
contains an SBC board used as the MP for the complex. The remaining SBCH boards act as USB
hubs.
The SBC board is an embedded computer running system utility board (SUB) firmware. It is the
core of the MP. It plugs into the SBCH board through a PC104 interface. The SBC provides the
following external interfaces to the utility subsystem:
•
LAN (10/100BT ethernet) for customer console access
•
RS232 port for local console access for manufacturing and field support personnel
The modem function is not included on the SBC and must be external to the cabinet.
Compact Flash
The Compact Flash is a PCMCIA-style memory card that plugs into the SBC board. It stores the
MP firmware and the customer's MP configuration parameters. The parameters stored in the
compact flash are as follows:
•
Network configurations for both the public and private LANs
•
User name and password combinations for logging in to the MP
•
Baud rates for the serial ports
•
Paging parameters for a specified alert level
•
Configurable system alert parameters
HUCB
The HUCB, shown in
Figure 1-5
, is the backplane of the utility subsystem. It provides cable
distribution for all the utility signals except the clocks. It also provides the customer LAN interface
and serial ports. The support management station (SMS) connects to the HUCB. The system type
switch is located on the HUCB. This board has no active circuits. It is not hot-swappable.
Utilities Subsystem
25