"The addition of 64-bit support extends our users' fine grain control over resource allocation," says Bert Armijo, senior VP of sales and product management for 3Tera. "With AppLogic customers can allocate resources from less than one percent of a CPU and 16MB of memory, up to eight CPUs and 16GB of memory for each virtual appliance instance. Users can drag and drop multiple Web and database servers. Now, they can also do all of that into a mixed 32-bit and 64-bit environment."

The AppLogic grid operating system is the first commercial platform designed specifically to enable true utility computing, says 3Tera. The system converts commodity servers into scalable grids on which users can visually deploy, operate and scale transactional Web applications without modifying any code.

3Tera announced last week it is offering the alpha release of a new concept in data center operations called Dynamic Appliances.