A partitioned system, its operating system is MVS 5.2.2 with JES2, which the Operations staff monitors the system via system consoles, virtual terminals and Omegamon displays.
Tape storage is managed by two subsystems.
A 3480 subsystem, using 6 cartridge drives with a 3 MByte data transfer rate. Its tape library consists of over 7000 cartridges, each with a 200 MByte capacity uncompressed. The second tape subsystem is IBM's 3494 Magstar . As a shared resource with the SP RS600 system, it includes 5 IBM 3590 cartridge drives with a 9 MByte data transfer rate, and currently holds over 300 cartridges, each with a 10 GByte capacity uncompressed. Its self-contained structure is handled primarily by its robotics .