When the primary system fails, the cold standby is brought online and promoted to primary server. When the standby is online, it reestablishes connections with all agents, runs recovery, and proceeds with any queued processes. Because the most intense work is handed-off to agents, a high performance configuration must not have an agent on the same computer as the main server.
The IBM UrbanCode Build server aggressively uses threading and takes advantage of any additional processor cores that are assigned to it. A small to mid-range server with 2-4 multi-core processors is ideal. However, because it is relatively easy to move an existing IBM UrbanCode Build server installation to a new location, you can start small and scale as needed. For example, you can increase the memory that is available to the application tier from the default 256 MB to something close to 1 GB.