Host/Ethernet Cables
WARNING!
•
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 system requires one Fibre Channel (or iSCSI) connection from a host
computer to a controller node. Hewlett Packard Enterprise recommends separate connections
from each host computer to each of the controller nodes in the system, with connections
distributed evenly across all controller nodes.
Table 26 External controller node connections
Recommended Configuration
Minimum Configuration
Connection Type
See the section
Supported Network
Topologies
in
HPE 3PAR StoreServ 8000
Storage Site Planning Manual
.
Connection from the Ethernet switch or hub
to two controller nodes
Ethernet
Separate connections from host computers
to each controller node, through a switch,
Connection from a host computer to one
controller node
Fibre Channel
with connections distributed evenly across
all controller nodes
Example: SAN Switch A connected to even
ports and SAN Switch B connected to odd
ports.
NOTE:
To provide redundancy and to
permit online software upgrades, both
controller nodes in a controller node pair (for
example, controller nodes 0 and 1 or
controller nodes 2 and 3) must maintain
connections to each host server.
Varies according to system and network
configuration
None
Maintenance
describes the maximum supported Fibre Channel cable length based on the
cable size and port speed.
Table 27 Cable limitations for FC host connectivity
Cable Length Limit
Speed
Cable Size
150 meters
4 Gb/s
50 micron
50 meters
8 Gb/s
50 micron
35 meters
16 Gb/s
50 micron
Cabling Expansion Cabinets
For more information about cabling drive enclosures (SAS), before you continue to cable the
system, see the
HPE 3PAR StoreServ 8000 Storage Cabling Configuration Guide
at:
http://www.hpe.com/info/storage/docs
80
System Cabling
Summary of Contents for HPE 3PAR StoreServ 8000
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