HP 3PAR StoreServ 7000 Storage Site Planning Manual

Table 14 Cable Limitations for Fibre Channel Host Connectivity

Cable Length LimitSpeedCable Size

100 meters2 Gb/s62.5 micron

70 meters4 Gb/s62.5 micron

300 meters2 Gb/s50 micron

150 meters4 Gb/s50 micron

Internal Cable Connections

NOTE: For important exceptions to the cabling rules and guidelines described in this section,

see the HP 3PAR OS Administrator’s Guide.

The following table lists the typical SAS cable lengths required for a given type of connection.

Table 15 SAS and Link Cable Usage Guidelines

Used For:Cable Length

Drive enclosure to drive enclosure and drive enclosure to

node

Drive enclosure to drive enclosure and drive enclosure to

node

Cabling between racks6m

7400 4–way node interconnect7400, 4–Node, Interconnect Cable:

520 mm

Cable Routing Options

For 10 Gigabit Ethernet (10GbE), iSCSI, and Fibre Channel cables that connect the storage system

to the customer network or hosts, approximately 7 feet (2 meters) of each cable must be reserved

for internal routing within the storage system rack.

Network Access

External Ethernet, iSCSI, FCoE, or Fibre Channel cable connections are completed at the time of

installation. These external connections are necessary to do the following:

• Establish connections from the controller nodes to the host computer or computers

• Connect the storage system to the network, enabling storage system management through the

HP 3PAR Management Console and HP 3PAR Command Line Interface (CLI)

• Allow communication to the storage system from the SP

Supported Network Topologies

Several different network topologies can connect the storage system to the local area network,

depending on operating site policies and requirements. Currently, the two supported topologies

are shared and private.

Internal Cable Connections 29