Power 775 Xcat Startup/Shutdown Procedures; Startup Procedures - IBM Power Systems 775 Manual

5.2 Power 775 xCAT startup and shutdown procedures
This section describes the steps that are used to start up and shut down the Power 775
cluster.

5.2.1 Startup procedures

This section describes the steps that are used to start xCAT 2.66 and the Power 775
hardware and software. The verification steps that are used as the system is started also are
described.
The commands that are shown in this section are for an AIX environment. All examples
assume that the administrator has root authority on the EMS. This section is intended only as
a post-installation startup procedure. Initial installation and configuration are not addressed in
this publication.
For more information about the Power 775 related software, see these websites:
https://www.ibm.com/developerworks/wikis/display/hpccentral/IBM+HPC+Clustering+wi
th+Power+775+Overview
https://www.ibm.com/developerworks/wikis/display/hpccentral/IBM+HPC+Clustering+wi
th+Power+775+-+Cluster+Guide
Terminology
The following terms are used in this document:
xCAT Direct FSP Management
Direct FSP Management (DFM) is the name that is used to describe the ability of the xCAT
software to communicate directly to the service processor of the Power system without the
need for the HMC management.
Frame node
This node features the hwtype set to frame, which represents a high-end Power system
server 24-inch frame.
CEC node
This node features the attribute hwtype set to cec, which represents a Power system CEC
(for example, one physical server).
BPA node
This node features a hwtype set to BPA and represents one port on one bpa (each BPA
has two ports). For the purposes of xCAT, the BPA is the service processor that controls
the frame. The relationship between the frame node and the BPA node from the system
administrator's perspective is that the administrator must always use the frame node
definition for the xCAT hardware control commands. xCAT figures out which BPA nodes
and their respective IP addresses to use for hardware service processor connections.
FSP node
This node features the hwtype set to FSP and represents one port on the FSP. In one CEC
with redundant FSPs, there are two FSPs and each FSP has two ports. There are four
FSP nodes that are defined by xCAT per server with redundant FSPs. Similar to the
relationship between Frame node and BPA node, system administrators always use the
CEC node for the hardware control commands. xCAT automatically uses the four FSP
node definitions and their attributes for hardware connections.
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IBM Power Systems 775 for AIX and Linux HPC Solution