STAM

STAM's architecture centered around a central server and agent processes deployed on each z/OS system. These agents communicated with the central server using a proprietary protocol to coordinate tape access. The central server maintained a proprietary database containing metadata about the tape library, including tape locations, access permissions, and usage statistics.

Configuration was managed through configuration files, defining tape libraries, devices, and access rules. STAM supported authentication through RACF and used Access Control Lists (ACLs) for managing permissions. Administrative tasks were performed via a command-line interface (CLI).

STAM's functionality was later integrated into CA MIM with SDSI and SCON. Alternatives include IBM Tape Manager and z/OS Global Resource Serialization (GRS). Monitoring capabilities were provided through the CLI and system logs.

STAM did not expose standard APIs like REST or SOAP; integration typically involved custom scripting or the CLI. The system required specific ports for communication between the central server and agents. The ACL model allowed granular control over tape resource access, specifying which users and systems could access specific tapes and what operations they could perform.