If you are running a SPARC environment, and you do not intend to make use of the clustering features included in this release, you may want to consider setting up and configuring a secondary service domain to improve the availability of virtual machines in the instance where the primary control domain may need to be restarted, or may fail.

Instructions on configuring and setting up a secondary service domain are provided in Configuring a Secondary Service Domain on SPARC in the Oracle VM Administrator's Guide. This is an advanced configuration that imposes some limitations on how you are able to use the product.