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Chapter 2
Installation
MP Core I/O Connections
36
MP Core I/O Connections
Each hp rp7405/rp7410 can have up to two MP Core I/O board sets installed. This allows for two partitions to
be operating, or allows for MP Core I/O redundancy in a single partition configuration. Each MP Core I/O
board set consists of two boards: the MP/SCSI board and the LAN/SCSI board. The MP/SCSI board is
oriented vertically and accessed from the back of the server. The LAN/SCSI is accessed from the PCI
expansion card bay. Only the primary MP core I/O board set (MP/SCSI slot 1 & LAN/SCSI slot 8, Chassis 1) is
required for a single partition implementation. The secondary MP/SCSI board is not necessary for full
operation, however, without the secondary MP/SCSI board only two internal disks can be accessed.
MP/SCSI Connections
The MP/SCSI board is required to update firmware, access the console, turn partition power on/off, access all
but one of the internal peripherals, and utilize other features of the system.
Connections to the MP/SCSI board include the following:
• DB25 Connector; via 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 3 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 active when AC is present and the front panel power switch is off.
• Internal LVD Ultra 160 SCSI channel for connections to internal mass storage.
• Internal SE Ultra SCSI channel for connection to 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 In order 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 board. The Primary
MP/SCSI board is located in the lower MP/SCSI board slot.