HP 3PAR StoreServ 7000 Storage Troubleshooting Guide

Table 2 Description of Controller Node Ports

PortItem

2 Ethernet

MGMT--Connects to the storage array management interfaces

RC--Connects to Remote Copy

Fibre Channel (FC-1 and FC-2)--Connects to host systems2

SAS (DP-2 and DP-1)--Connects the drive enclosures and I/O modules using

SAS cables

Node Interconnect--Connects four directional interconnect cables that connect

the controller nodes (four node 7400 only)

PCIe slot for optional four-port 8 Gb/s FC HBA or two-port 10 Gb/s CNA5

NOTE: The MFG port is not used.

I/O Modules

The I/O modules connect the controller nodes to the hard drives using a SAS cable and enabling

data transfer between the nodes, hard drives, PCMs, and enclosures. There are two I/O modules

located at the rear of the drive enclosure. There are two I/O modules per enclosure, numbered 0

and 1 from bottom to top. See Figure 6 (page 9).

Figure 6 I/O Module Numbering for HP M6710 (2U) and HP M6720 (4U) Drive Enclosures

NOTE: The I/O modules are located in slots 0 and 1 of the HP M6710 and M6720 drive

enclosures.

Power Cooling Modules

The PCM is an integrated power supply, battery, and cooling fan. There are two types of PCMs:

• The 580 W is used in drive enclosures and does not include a battery.

• The 764 W is used in node enclosures and includes a replaceable battery.

The PCMs are located at the rear of the storage system, and on the sides of the enclosure. There

are two PCMs per enclosure. The PCMs are numbered 0 and 1 from left to right.

Understanding Component Numbering 9