Hardware Management Console; Ipl Flow With An Hmc Attached To The System - IBM p5 550 Technical Overview And Introduction

Manual or Normal. Manual mode overrides various automatic power-on functions, such as
auto-power restart, and enables the power switch button.
AIX/Linux partition mode boot, available only if the system is not managed by the HMC.
– Service mode boot from saved list. This is the preferred way to run concurrent AIX
diagnostics.
– Service mode boot from default list. This is the preferred way to run stand-alone AIX
diagnostics.
– Boot to open firmware prompt.
– Boot to System Management Service (SMS) to further select the boot devices or
network boot options.
Boot to server firmware:
Select the state for the server firmware: Standby or Running.
When the server is in the server firmware standby state, partitions can be set up and
activated

2.12.2 Hardware Management Console

Depending on the model, the HMC provides a number of native serial ports and Ethernet port.
One serial port can be used to attach a modem for the Service Agent. The Service Agent
Connection Manager can be used instead if the HMC has a TCP/IP port 80 connection to the
Internet. The HMC provides an Ethernet port (or ports) to connect to partitions on its
POWER5 processor-based managed systems. The network connection is mandatory for the
HMC to p5 systems, and highly recommended between the HMC and partitions. It supports
the following functions:
Logical partition configuration and management
Dynamic logical partitioning
Capacity and resource management
System status
HMC management
Service functions (for example, Microcode Updates and Service Focal Point)
Remote HMC interface
Note: The same HMC cannot be attached to POWER4 and POWER5 processor-based
systems simultaneously, but for redundancy purposes, one POWER5 processor-based
server can be attached to two HMCs.
All the managed servers must be authenticated from the HMC. If a new attached system is
discovered, the HMC will prompt you to set two passwords using the HMC interface:
Advanced System Management general user ID password
Advanced System Management admin ID password
HMC access password

2.12.3 IPL flow with an HMC attached to the system

When the system status is in standby, you can use the HMC to open a virtual terminal and
access the SMI, or launch a Web browser to access the ASMI.
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p5-550 Technical Overview and Introduction