IBM p5 550, Technical Overview And Introduction

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Chapter 2. Architecture and technical overview
61
Figure 2-16 HMC to service processor and LPARs network connection
The default mechanism for the allocation of the IP addresses for the service processor HMC
ports is dynamic. The HMC can be configured as a DHCP server and can provide the IP
address at the time the managed server is powered on. If the service processor of the
managed server does not receive a DHCP reply before timeout, predefined IP addresses are
set up on both ports. Static IP address allocation is also an option. You can configure the IP
address of the service processor ports with a static IP address by using the Advanced
System Management Interface (ASMI) menus. See 2.15.7, “Service processor” on page 72
for predefined IP addresses and additional information.
Functions performed by the HMC include:
򐂰 Creating and maintaining a multiple partition environment
򐂰 Displaying a virtual operating system session terminal for each partition
򐂰 Displaying a virtual operator panel of contents for each partition
򐂰 Detecting, reporting, and storing changes in hardware conditions
򐂰 Powering managed systems on and off
򐂰 Acting as a service focal point
The HMC provides both graphical and command line interfaces for all management tasks.
Remote connection to the HMC using Web-based System Manager or SSH are possible. For
accessing the graphical interface, you can use the Web-based System Manager Remote
Client running on AIX 5L, Linux, or Windows® operating systems. You can download the
Web-based System Manager client installation image from the HMC itself:
http://<hmc_address_or_name>/remote_client.html
Both un-encrypted and encrypted Web-based System Manager connections are supported.
The command-line interface is also available by using the SSH secure shell connection to the
HMC. It can be used by an external management system or a partition to perform HMC
operations remotely.
Note: If you need to access ASMI (for example, to set up the IP address of a new
processor-based server when HMC is not available or not providing DHCP
services), you can connect any client to one of the service processor HMC ports with any
kind of Ethernet cable, and use a Web browser to access the predefined IP address, such
as the following example:
https://192.168.2.147
Management LAN
`
eth0
eth1
p5 System
HMC 1
Service
Processor
LPAR
1
LPAR
2
LPAR
...
LPAR
n
eth0 eth0 eth0 eth0
HMC 2
HMC