Upgrade Requirements and Software Support Guidelines

Observe the following requirements and software-support guidelines when you upgrade to Sun Cluster 3.1 8/05 software:

• Supported hardware - The cluster hardware must be a supported configuration for Sun Cluster 3.1 8/05 software. Contact your Sun representative for information about current supported Sun Cluster configurations.

• Architecture changes during upgrade - Sun Cluster 3.1 8/05 software does not support upgrade between architectures.

• Minimum Solaris OS - The cluster must run on or be upgraded to at least Solaris 8 2/02 software, including the most current required patches.

• Restriction on upgrade to the March 2005 distribution of the Solaris 10 OS - Sun Cluster 3.1 8/05 software does not support upgrade to the original release of the Solaris 10 OS, which was distributed in March 2005. You must upgrade to at least Solaris 10 10/05 software or compatible.

• Upgrading between Solaris major releases - Sun Cluster 3.1 8/05 software supports only nonrolling upgrade from Solaris 8 software to Solaris 9 software or from Solaris 9 software to Solaris 10 10/05 software or compatible.

• Upgrading to compatible versions - You must upgrade all software to a version that is supported by Sun Cluster 3.1 8/05 software. For example, if a data service is supported on Sun Cluster 3.0 software but is not supported on Sun Cluster 3.1 8/05 software, you must upgrade that data service to the version of that data service that is supported on Sun Cluster 3.1 8/05 software. See Supported Products in Sun Cluster 3.1 8/05 Release Notes for Solaris OS for support information about specific data services.

  If the related application of a data service is not supported on Sun Cluster 3.1 8/05 software, you must upgrade that application to a supported release.

• Minimum Sun Cluster software version - Sun Cluster 3.1 8/05 software supports direct upgrade only from Sun Cluster 3.x software.

• Converting from NAFO to IPMP groups - For upgrade from a Sun Cluster 3.0 release, have available the test IP addresses to use with your public-network adapters when NAFO groups are converted to Internet Protocol (IP) Network Multipathing groups. The scinstall upgrade utility prompts you for a test IP address for each public-network adapter in the cluster. A test IP address must be on the same subnet as the primary IP address for the adapter.

  See the IP Network Multipathing Administration Guide (Solaris 8) or IPMP, in System Administration Guide: IP Services (Solaris 9 or Solaris 10) for information about test IP addresses for IP Network Multipathing groups.

• Downgrade - Sun Cluster 3.1 8/05 software does not support any downgrade of Sun Cluster software.

• Limitation of scinstall for data-service upgrades - The scinstall upgrade utility only upgrades those data services that are provided with Sun Cluster 3.1 8/05 software. You must manually upgrade any custom or third-party data services.