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Cabling and Power Up
MP/SCSI Core I/O Connections
MP/SCSI Core I/O Connections
Each HP 9000 rp7420 Server can have up to two core I/O board sets installed, which allows two partitions to
operate, or MP/SCSI Core I/O redundancy in a single partition configuration. Each core I/O board set consists
of two boards: the MP/SCSI Core I/O board and the LAN/SCSI board. The MP/SCSI Core I/O board is oriented
vertically and accessed from the back of the server. The LAN/SCSI is accessed from the PCI/PCI-X expansion
card bay. Only the primary core I/O board set (MP/SCSI Core I/O slot 1 and LAN/SCSI slot 8, chassis 1) is
required for a single partition implementation. The secondary MP/SCSI Core I/O board is not necessary for
full operation; however, without the secondary MP/SCSI Core I/O board, only the top two internal hard disks
can be accessed. See Figure 3-1 on page 34.
MP/SCSI Core I/O Board Connections
The MP/SCSI Core I/O board is required to update firmware, access the console, turn partition power on/off,
access all but two of the internal peripherals, and use other features of the system.
Connections to the MP/SCSI Core I/O board include the following:
•
DB25 Connector, by way of the M cable
This RS232 connector provides connections for a local console, external modem, and a UPS. The server
end of the M cable terminates in a DB25 connector. The opposite side of the cable terminates in three DB9
connectors labeled CONSOLE, UPS, and REMOTE.
•
10/100 Base-T LAN RJ45 connector (for LAN and Web Console access).
This LAN uses standby power and is still active if the front panel power switch is off and AC is present.
•
Internal LVD Ultra 160 SCSI channel for connections to internal mass storage
•
Internal SE Ultra SCSI channel for connection to an internal removable media device.
LAN/SCSI Connections
The LAN/SCSI board is a PCI form factor card that provides the basic external I/O connectivity for the
system.
Connections to the LAN/SCSI board include the following:
•
PCI-X to PCI-X bridge for multi-device compatibility
•
Internal LVD Ultra 160 SCSI channel for connections to internal mass storage
•
External LVD Ultra 160 SCSI channel connected to a 68-pin VHDCI connector
•
10/100/1000 Base-T LAN RJ45 connector
The primary LAN interface is located on the LAN/SCSI board installed in the rightmost slot when viewing
the system from the back.
Management Processor Access
NOTE
To access the Management Processor for the initial installation, the M cable must first be
connected to the DB25 connector located on the primary MP/SCSI Core I/O board. The primary
MP/SCSI Core I/O board is located in MP/SCSI Core I/O board slot 1 (lower slot).
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Chapter 4
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