HP 3PAR T-Class Installation and Deinstallation Guide

Split
With a split network topology, the storage system is on the internal customer network, but the
storage system communicates with the service processor on a dedicated private network segment
(Figure 3 (page 12)). 3PAR assigns the IP address to the private segment.
Figure 3 Storage System on the Local Area Network with the Service Processor on a Private Segment
(Split Topology)
A split topology requires:
• Two static IP addresses and a system name for the storage system.
One IP address is for the LAN and the other IP address is for the private network segment. Only
one interface per network is active at any one time.
• Two Ethernet connections from a switch or hub to the storage system controller nodes.
1
• Two Ethernet connections from the private network segment to the storage system controller
nodes.
1
• A static IP address for the service processor.
• One Ethernet connection from the private segment to the service processor.
NOTE: The private network segment should also have a management station to communicate
with the service processor.
Service Processor Connectivity
The storage system service processor is used to provide remote error detection and reporting, and
to support diagnostic and maintenance activities involving storage systems. In general, one service
processor is required per storage system.
NOTE: For more information about service processor security, see the HP 3PAR Service Tools
Platform document.
When a new HP 3PAR storage system is installed at a customer location, a Service Processor (SP)
is also included with the system. If the system is delivered in an HP cabinet, the SP comes
pre-installed in the cabinet. If the storage system is being installed in a third party rack, the SP must
be installed in the same area. For more details of SP placement, see Section (page 25).
The data collected by the service processor is used by HP to maintain, troubleshoot, and upgrade
the HP equipment on the customer site. To perform these activities, the service processor must
communicate with HP Central or a local service provider. The connection between the service
1. For an HP 3PAR T-Class Storage System, it is only possible to create one Ethernet connection from a switch or hub to
a storage system controller node and one Ethernet connection from the private network segment to a controller node.
This configuration does not support redundancy and is not permitted.
12 Preparing for Storage System Installation