For HPCS to install and operate correctly, the GigE network
must be cabled properly. The head node must have two connections;
one NIC connected to an enterprise (public) connection, and the other
NIC connected to an isolated (private) network infastructure. All
compute nodes must have the same NIC (NIC1 or NIC2) connected to the
same isolated (private) network which includes the head node private
NIC.
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 | NOTE: HP recommends isolating the private network and not connecting
any other enterprise machines to this network. |
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Most configurations do not require any special network switch
configurations or VLANing. However, some Blade configurations including
c3000 enclosures and/or mixed BL2x22X and BL46X configurations with
a BL4XX head node require additional switch configuration and VLAN
requirements to meet the basic public/private requirements stated
above.
Due to the vast number of possible configurations, see the standard
Cluster Platform cabling requirements located at www.docs.hp.com/en/highperfcomp.html for more detail on how to properly configure and cable your specific
network configuration.
To cable your cluster system, follow these steps:
Locate the appropriate cabling guides at:
http://www.docs.hp.com/en/highperfcomp.html.
Cables
are labeled with the origin and destination ports. Reference the cabling
tables to ensure that you understand the port naming syntax. In the
event of missing or damaged cable labels (or if replacing damaged
cables), use the cabling tables for your model and type of cluster
to determine the correct point-to-point cable routing.
When cabling the cluster, you might see cabling table
footnotes that are operating-environment specific. Follow all cabling
instructions that apply to the HP XC operating environment, which
applies the same cabling rules as HPCS.
Clusters are delivered preconfigured. For single-rack
solutions, connect the cluster to your local area network (LAN), using
the Ethernet switch port or NIC card designated in the cabling tables.
For clusters of more than one rack, you must do the following:
Complete the intrarack cabling, as described in the appropriate
documentation for InfiniBand or Gigabit Ethernet.
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 | CAUTION: InfiniBand cables and interconnect ports are highly sensitive
and prone to damage if not handled correctly. |
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Connect the cluster to your LAN, using the Ethernet switch
port or NIC card designated in the cabling tables.
Perform a visual check of the fabric,
as described in the cluster hardware documentation, referring to the
user guides for the specific interconnect and Ethernet network switches
used in your cluster. (This step involves only verifying that the
link status and activity LEDs at each end of a cable link indicate
that the link is good.)
Power up the cluster, as described in the interconnect
guide for your model of HP Cluster Platform.
Perform any hardware post-installation verification procedures
to ensure that all cabling is functioning.
Gigabit Ethernet
clusters have no specific post-installation verification procedures,
other than those documented in the HP ProCurve hardware documentation
shipped with your cluster.
Proceed to install or configure the HPCS operating environment,
as described in Chapter 4.
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 | IMPORTANT: The operating environment configuration procedure requires that
all cabling is complete and all hardware devices are in an appropriate
state. |
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