The IBM System Storage TS3310 is a modular, scalable tape library designed to meet the tape storage requirements of rapidly growing businesses with limited space and resources for tape backup and other tape-based applications. Built on a 5U high library base unit, the TS3310 is designed to scale vertically by adding LTO tape cartridges, drives, and redundant power supplies. The TS3310 L5B library can be expanded with E9U expansion units. The IBM System Storage TS3310 is a modular, scalable tape library designed to meet the tape storage requirements of rapidly growing businesses with limited space and resources for tape backup and other tape-based applications. Built on a 5U library base module, the TS3310 is designed to scale up by adding LTO tape cartridges, drives, and redundant power supplies. The TS3310 L5B library can be expanded with E9U expansion units.