HP XC System Software Installation Guide Version 3.2.1

5 Upgrading Your HP XC System To This Release
This chapter describes how to use the upgrade process to install HP XC System Software Version
3.2.1 on an HP XC system that is running a previous version of the HP XC System Software.
This chapter addresses the following topics:
• “Software Upgrade Overview” (page 121)
• “Task 1: Prepare for the Upgrade” (page 123)
• “Task 2: Prepare the System State” (page 125)
• “Task 3: Install the Upgrade RPM and Prepare the System” (page 125)
• “Task 4: Upgrade Linux and HP XC RPMs” (page 126)
• “Task 5: Reboot the Head Node and Verify the New Kernel” (page 127)
• “Task 6: Install Patches and Reinstall Additional Software” (page 128)
• “Task 7: Manually Merge File Customizations” (page 129)
• “Task 8: Configure the System and Propagate the Golden Image” (page 130)
• “Task 9: Image and Boot the System and Start Compute Resources” (page 133)
• “Task 10: Start Availability Tools After the Upgrade” (page 135)
• “Task 11: Verify the Upgrade” (page 135)
5.1 Software Upgrade Overview
A software upgrade to HP XC System Software Version 3.2.1 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, or removes RPMs 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 121)
• “Is Upgrading Appropriate for Your System Configuration?” (page 122)
• “Upgrade Characteristics” (page 122)
• “Upgrade Commands” (page 123)
5.1.1 Supported Upgrade Paths
Table 5-1 lists the supported upgrade paths to HP XC System Software Version 3.2.1.
Table 5-1 Supported Upgrade Paths
Is an Upgrade to Version
3.2.1 Supported?Installed Version of HP XC System Software
NoVersion 2.1 or earlier
YesVersion 3.0
1
NoVersion 3.1 Accelerated Deployment Kit (ADK)
YesVersion 3.1
2
YesVersion 3.2
1 The system must have Patch Kit 2 (PK2) installed.
2 The system must have Patch Kit 1 (PK1) installed.
5.1 Software Upgrade Overview 121