Abstract: Embodiments are described for proximity auditing of removable media cartridge magazines in a data storage library. For example, a proximity sensor mounted on a robotic assembly can be used to detect one or more target features of cartridge magazines. In particular, the proximity sensor can look for relatively large structural features of a removable cartridge magazine in a manner that is fast and reliable, and does not rely on precise positioning of the robotic assembly with respect to the magazine. Some implementations can use the proximity sensor in conjunction with further auditing and/or other functions of line camera, and/or other sensors of the robotic assembly. Proximity-based auditing of the magazines can permit storage library systems to initialize faster and with more reliable inventory information.

Abstract: Embodiments are described for proximity auditing of removable media cartridge magazines in a data storage library. For example, a proximity sensor mounted on a robotic assembly can be used to detect one or more target features of cartridge magazines. In particular, the proximity sensor can look for relatively large structural features of a removable cartridge magazine in a manner that is fast and reliable, and does not rely on precise positioning of the robotic assembly with respect to the magazine. Some implementations can use the proximity sensor in conjunction with further auditing and/or other functions of line camera, and/or other sensors of the robotic assembly. Proximity-based auditing of the magazines can permit storage library systems to initialize faster and with more reliable inventory information.

Abstract: Embodiments of the invention include systems and methods for providing gripper recovery using a magazine drop-out feature. Embodiments operate in context of a data storage library having a number of media cartridges physically located within slots of one or more magazines. A robotic hand assembly uses a gripper mechanism to retrieve and ferry the cartridges between the magazines and one or more media drives. In some instances, the gripper mechanism is unable to disengage from the cartridge or to disengage the cartridge from its magazine slot. Embodiments detect this condition and direct the robotic hand assembly to drop out of engagement with the cartridge through the drop-out region of the magazine slot, allowing the gripper mechanism to recover.

Abstract: Embodiments of the invention include systems and methods for providing gripper recovery using a magazine drop-out feature. Embodiments operate in context of a data storage library having a number of media cartridges physically located within slots of one or more magazines. A robotic hand assembly uses a gripper mechanism to retrieve and ferry the cartridges between the magazines and one or more media drives. In some instances, the gripper mechanism is unable to disengage from the cartridge or to disengage the cartridge from its magazine slot. Embodiments detect this condition and direct the robotic hand assembly to drop out of engagement with the cartridge through the drop-out region of the magazine slot, allowing the gripper mechanism to recover.