Altiris 7.1 is not an HA-aware application, and thus it does not support HA/failover active-active or active-passive mode. For our environment, we have a set of cold backup servers that support our SMP and ServiceDesk server. In an outage situation, we have to restore the environment using these cold backup machines restored using full and incremental backups of our production servers. It is not the ideal situation because it requires so much manual intervention, but it is the best we can do given the fact the limitation is in the application.