We have a three node Oracle RAC cluster. TSM for Databases is installed on each of the three systems. There is a single collection of database backups that could be read or updated by any of the three instances of TSM for Databases. Proxy node access was used to set up this arrangement. So far, one node has performed all the database backups. We have contingency plans for switching the database backup function to another node if the current node suffers a prolonged outage.
We currently have enough TSM for Databases value units to cover the processor configurations on all three cluster nodes. We are planning a hardware upgrade that will greatly increase the value unit requirements for each node, and are wondering if we really need value units for all the nodes. Some Tivoli products have license agreements that specify that no value units are needed for cold standby instances of the products. So far, we have not found any IBM document discussing licensing for cold standby instances of TSM for Databases. We have also not found any document that states precisely what event triggers the requirement for possession of value units for a system with TSM for Databases installed. The more obvious possibilities include running the software installation utility, setting up configuration files, connecting to a TSM server, and sending database backups to a TSM server. Does anyone know of an IBM document covering either of these points? Thomas Denier, Thomas Jefferson University Hospital
