IBM Power 595, Технический обзор и введение, Страница: 114 / 188

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IBM Power 595 Technical Overview and Introduction
The 595 server requires one primary HMC that can communicate to all BPHs in the system.
The primary HMC is connected to port J01 on the BPH located on the front side of the system
(CEC) rack.
On a systems that support mission-critical workloads, for improved system availability, a
redundant HMC is highly recommended. The redundant HMC is connected to port J01 on the
BPH located on the back side of the system rack. It is common to make use of an Ethernet
hub or switch to facilitate the connections between the The HMC and the 595 server.
The default mechanism for allocation of the IP addresses for the 595 server HMC ports is
dynamic. The HMC must be configured as a DHCP server, which provides an IP address to
the system controller (service processor) when the server is powered on.
For dynamic LPAR operations and system performance reporting, it is recommended that all
AIX and Linux for Power partitions be configured to communicate over an administrative or
public network that is shared with the HMC. Figure 2-46 shows a simple network
configuration that enables communications between the HMC and server LPARs for the
enablement of Dynamic LPAR operations. For more details about HMC and the possible
network connections, refer to the
Hardware Management Console V7 Handbook ,
SG24-7491.
Figure 2-46 HMC and LPAR public network
For any logical partition (dedicated or shared processor pool-based) in a server, it is possible
to configure a Shared Ethernet Adapter using the Virtual I/O Server to satisfy the public
network requirement. This can help to reduce the quantity of physical adapters required to
communicate with the HMC.
2.13.1 Determining the HMC serial number
For some HMC or service processor troubleshooting situations, an IBM service
representative must log into the HMC. The service password changes daily and is not
generally available for client use. If an IBM project engineer (PE) determines a local service
HMC Connections on BPCs HMC Connections on BPCs