3PAR InServ® E-Class/F-Class Storage Server Physical Planning Manual (320 - 200120 Rev F, September 2010)

6.19
3PAR InServ E-Class/F-Class Storage Server Physical Planning Manual
■ Each controller node supports one Ethernet connection to a switch or hub. Separate
connections from the Ethernet switch or hub to at least two controller nodes are required
to support redundancy.
With redundancy, one IP address is shared between the two connections and only one
network connection is active at a time. If the active network connection fails, the IP address
is automatically moved to the surviving network connection.
■ At a minimum, the storage server requires one Fibre Channel (or iSCSI) connection from a
host computer to a controller node. However, separate connections from each host
computer to each of the controller nodes in the storage server, with connections
distributed evenly across all nodes, are recommended.
Table 6-5 shows the maximum supported Fibre Channel cable length based on the cable size
and port speed.
Table 6-5. Cable Limitations for Fibre Channel Host Connectivity
Cable Size Speed Cable Length Limit
62.5 micron 2 Gbps 100 meters
62.5 micron 4 Gbps 70 meters
50 micron 2 Gbps 300 meters
50 micron 4 Gbps 150 meters