Usage notes

When using the TAPEDEV command, consider the following:

  1. When ATT is used, the device will be added to the list of managed devices immediately, even if the device cannot be attached.

    If the ATT is issued with the WAIT option, the command will complete when Tape Manager processes the command and before the Device Manager (DMM) performs the attach. A return code of zero (0) indicates that the attach request was passed to the Device Manager.

  2. When DET is used, the device will be removed from the list of managed devices immediately, even if the device is associated with an active tape mount request. The device will be detached when the active request completes.

    If the DET is issued with the WAIT option, the command will complete when Tape Manager processes the command and before the Device Manager performs the detach. A return code of zero (0) indicates that the detach request was passed to the device manager.

  3. When ADD or DEL is used, the devices will be removed from the device pool list and a corresponding request will be sent to the Device Manager (DMM).

    If the WAIT option is used, the command will not complete until a response has been received from the Device Manager or the request times out. The DMM response will be reflected to the requestor. A successful response means that the DMM processed the request and those devices have been added to or deleted from the device pool.

  4. A device that is dedicated at a remote node will not be removed from the list of dedicated devices unless the TAPEDEV DET command specifies the correct node name. Instead, message EUM0767W will be issued.