
Table 5 External Controller Node Connections
Recommended ConfigurationMinimum ConfigurationConnection Type
See the section Supported Network
Topologies in HP 3PAR StoreServ 7000
Storage Site Planning Manual.
Connection from the Ethernet switch
or hub to two controller nodes
Ethernet
Separate connections from host
computers to each node, through a
switch, with connections distributed
evenly across all nodes
1
Connection from a host computer to
one controller node
Fibre Channel
Varies according to system and network
configuration
NoneMaintenance
1
To provide redundancy and to permit online software upgrades, both controller nodes in a node pair (for example,
nodes 0 and 1 or nodes 2 and 3) must maintain connections to each host server.
Table 6 (page 51) describes the maximum supported Fibre Channel cable length based on the
cable size and port speed.
Table 6 Cable Limitations for Fibre Channel Host Connectivity
Cable Length LimitSpeedCable Size
100 meters2 Gbps62.5 micron
70 meters4 Gbps62.5 micron
21 meters8 Gbps62.5 micron
300 meters2 Gbps50 micron
150 meters4 Gbps50 micron
50 meters8 Gbps50 micron
35 meters16 Gbps50 micron
Cabling Expansion Cabinets
For more information about cabling drive enclosures in expansion cabinets, see the following
documents:
• HP 3PAR StoreServ 7000/7450 Storage Cabling Configuration Guide A: 2 Node Systems
with Small 2.5-inch Drive Enclosures
• HP 3PAR StoreServ 7000/7450 Storage Cabling Configuration Guide B: 2 Node Systems
with Large 3.5-inch Drive Enclosures
• HP 3PAR StoreServ 7000/7450 Storage Cabling Configuration Guide C: 2 Node Systems
with Mixed-Size Drive Enclosures
• HP 3PAR StoreServ 7000/7450 Storage Cabling Configuration Guide D: 4 Node Systems
with Small 2.5-inch Drive Enclosures
• HP 3PAR StoreServ 7000/7450 Storage Cabling Configuration Guide E: 4 Node Systems
with Large 3.5-inch Drive Enclosures
• HP 3PAR StoreServ 7000/7450 Storage Cabling Configuration Guide F: 4 Node Systems
with Mixed-Size Drive Enclosures
Visit www.hp.com/go/3par. Scroll to Support, and click HP 3PAR StoreServ 7000/7450 Support
and then Manuals. Then scroll to Setup and install — general and select the specific HP 3PAR
StoreServ 7000/7450 Storage Cabling Configuration Guide.
Cabling Expansion Cabinets 51
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