Observe the following requirements and software-support guidelines when you upgrade to Sun Cluster 3.2 11/09 software:
Upgrade of x86 based systems - On x86 based systems, you cannot upgrade from the Solaris 9 OS to the Solaris 10 OS. You must reinstall the cluster with a fresh installation of the Solaris 10 OS and Sun Cluster 3.2 11/09 software for x86 based systems. Follow procedures in Chapter 2, Installing Software on Global-Cluster Nodes, in Sun Cluster Software Installation Guide for Solaris OS.
Minimum Sun Cluster software version - Sun Cluster 3.2 11/09 software supports the following direct upgrade paths:
SPARC: From version 3.1 8/05 through version 3.2 1/09 - Use the standard, dual-partition, or live upgrade method.
From version 3.2 including update releases through version 3.2 1/09 - Use the standard, dual-partition, or live upgrade method.
From version 3.2 through version 3.2 1/09 with no Solaris upgrade or Solaris upgrade only to an update release – You can also use the rolling upgrade method.
See Choosing a Sun Cluster Upgrade Method for additional requirements and restrictions for each upgrade method.
Patch requirement - The following are the minimum Sun Cluster patch levels that are required if you upgrade from Sun Cluster 3.2 or Sun Cluster 3.2 2/08 software. Apply the appropriate patch to your cluster before you start to upgrade Sun Cluster software. These patches contain versioning functionality that is necessary for Sun Cluster upgrade:
Solaris 9 OS - 125510–02
Solaris 10 OS on SPARC - 125511–02
Solaris 10 OS on x86 - 125512–02
No Sun Cluster patches are required to upgrade from Sun Cluster 3.2 1/09 software.
Minimum Solaris OS - The cluster must run on or be upgraded to at least Solaris 10 5/09 or Solaris 9 9/05 software, including the most current required patches. The Solaris 9 OS is supported only on SPARC based platforms.
New-feature support – To use any of the new features and bug fixes that are introduced in the Sun Cluster 3.2 11/09 release, the cluster must run on or be upgrade to at least Solaris 10 10/09 software.
Supported hardware - The cluster hardware must be a supported configuration for Sun Cluster 3.2 11/09 software. Contact your Sun representative for information about current supported Sun Cluster configurations.
Architecture changes during upgrade - Sun Cluster 3.2 11/09 software does not support upgrade between architectures.
Software migration - Do not migrate from one type of software product to another product during Sun Cluster upgrade. For example, migration from Solaris Volume Manager disk sets to VxVM disk groups or from UFS file systems to VxFS file systems is not supported during Sun Cluster upgrade. Perform only software configuration changes that are specified by upgrade procedures of an installed software product.
ZFS root file system restriction – If the cluster uses ZFS for the root file system, you can only use the Live Upgrade method to upgrade the cluster.
Global-devices partition size - If a node uses a dedicated partition for the /global/.devices/node@nodeid file system and the partition is less than 512 Mbytes but it provides sufficient space for existing device nodes, you do not need to change the file-system size. The 512-Mbyte minimum applies to new installations of Sun Cluster 3.2 11/09 software.
However, you must still ensure that the global-devices file system has ample space and ample inode capacity for existing devices and for any new devices that you intend to configure. Certain configuration changes, such as adding disks, disk volumes, or metadevices, might require increasing the partition size to provide sufficient additional inodes.
Data services - You can continue to use data service software from Sun Cluster 3.1 or 3.2 releases after you upgrade the cluster to the Sun Cluster 3.2 11/09 release. However, you must upgrade data-service software to the Sun Cluster 3.2 11/09 version to use any new features and bug fixes that are provided in this release.
Upgrading to compatible versions - You must upgrade all software on the cluster nodes to a version that is supported by Sun Cluster 3.2 11/09 software. For example, if a version of an application is supported on Sun Cluster 3.1 software but is not supported on Sun Cluster 3.2 11/09 software, you must upgrade that application to the version that is supported on Sun Cluster 3.2 11/09 software, if such a version exists. See Supported Products in Sun Cluster Release Notes for information about supported products.
Downgrade - Sun Cluster 3.2 11/09 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 3.2 11/09 software. You must manually upgrade any custom or third-party data services.