I/O Modules; Power Cooling Modules - HP 3PAR StoreServ 7000 Troubleshooting Manual

Table 2 Controller node port locations
Callout
1
2
3
4
5

I/O Modules

The I/O modules connect the controller nodes to the drives using a SAS cable and help send data
back and forth between the nodes, the drives, PCMs, and enclosures. The I/O modules are located
in the rear of the drive enclosure and are numbered 0–1 from bottom to top. There are two I/O
modules per enclosure.

Power Cooling Modules

The Power Cooling Module (PCM) is an integrated power supply, battery, and cooling fan. There
are two types of PCMs:
The 580W is used in the drive enclosures and does not include a battery.
The 764W includes a replaceable battery and is used in the node enclosures.
The PCMs are located at the rear of the system located on either side of an enclosure. There are
two PCMs per enclosure numbered 0 and 1, from left to right.
Figure 6 PCM numbering
NOTE: In the HP M6720 Drive Enclosure (4U24), there are two PCMs that are diagonal from
each other; the remaining PCM slots are filled with blanks.
Port
Ethernet (2)
MGMT — connects the public interface with a RJ45 serial cable.
RC — connects to Remote Copy
Fibre channel
SAS (DP–2 and DP- 1 ) — connects to the drive enclosures and I/O modules
using SAS cables
Cluster link — Used with four directional interconnect cables that connect the
controller nodes in four node 7400 systems.
Fibre channel adaptor (4 ports) or CNA (2 ports).
Understanding Component Numbering 9