This chapter provides the following information and procedures to prepare to upgrade or update the Oracle Solaris Cluster 4.2 software:
An upgrade moves the cluster to the latest Oracle Solaris Cluster release by updating all packages. By default, the upgrade also upgrades the Oracle Solaris OS and any other packages to the latest compatible version.
A software update changes a specific Oracle Solaris Cluster package to a newer Support Repository Update (SRU) level. For more information about using the pkg commands to update packages, see Overview of Updating Oracle Solaris Cluster Software in Oracle Solaris Cluster System Administration Guide .