HP XC System Software Installation Guide Version 3.2

5 Upgrading an HP XC System
This chapter describes how to use the upgrade process to install HP XC System Software Version
3.2 on an HP XC system that is already running a previous version of the HP XC System Software.
This chapter addresses the following topics:
• “Software Upgrade Overview” (page 119)
• “Task 1: Prepare for the Upgrade” (page 121)
• “Task 2: Prepare the System State” (page 122)
• “Task 3: Install the Upgrade RPM and Prepare the System” (page 123)
• “Task 4: Upgrade Linux and HP XC RPMs” (page 123)
• “Task 5: View the Results of the RPM Upgrade” (page 124)
• “Task 6: Install Patches and Reinstall Additional Software” (page 124)
• “Task 7: Manually Merge File Customizations” (page 125)
• “Task 8: Configure the System and Propagate the Golden Image” (page 126)
• “Task 9: Image and Boot the System and Start Compute Resources” (page 129)
• “Task 10: Start Availability Tools After the Upgrade” (page 131)
• “Task 11: Verify the Upgrade” (page 131)
5.1 Software Upgrade Overview
A software upgrade to HP XC System Software Version 3.2 installs new versions of Linux and
HP XC RPMs on the current system.
The software upgrade process begins on the head node, and the underlying update mechanism
is the Yellow Dog Updater, Modified (YUM). YUM determines RPM dependencies and updates,
installs, and removes RPMs from the system accordingly.
As part of the upgrade process, the cluster_config utility re-creates the golden image on the
head node, and the head node represents the configuration from which all other nodes are
upgraded and reimaged.
This section also provides information about the following topics:
• “Supported Upgrade Paths” (page 119)
• “Is Upgrading Appropriate for Your System Configuration?” (page 120)
• “Upgrade Characteristics” (page 120)
• “Upgrade Commands” (page 121)
5.1.1 Supported Upgrade Paths
Table 5-1 lists the supported upgrade paths to HP XC System Software Version 3.2.
Table 5-1 Supported Upgrade Paths
Is an Upgrade to Version 3.2
Supported?Installed Version of HP XC System Software
NoVersion 2.1
YesVersion 3.0
YesVersion 3.1 Accelerated Deployment Kit (ADK)
1
YesVersion 3.1
1 An ADK is also known as an advanced developer's kit.
5.1 Software Upgrade Overview 119