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Dell NetWorker 19.9 Administration Guide

Modifying the control port

When a change in the control port of the robotic arm of a library occurs, NetWorker may not be able to perform library operations, such as labeling, mounting, and unmounting, and inventorying. You may see the error no such file or directory when NetWorker tries to perform library operations.

To update the NetWorker server or storage node to use the new control port, perform the following steps.

Run the inquire command to determine the SCSI device address of the library arm and to confirm that a serial number is reported.
NOTE:Use the inquire command with caution. The inquire command sends the SCSI inquiry command to all devices detected on the SCSI bus. If you use inquire during normal operations, unforeseen errors and possible data loss may result.
  • If inquire reports the serial number of the arm, follow the procedure at Scanning for libraries and devices to scan the library for devices, then enable the library in NMC:
    1. In the Administration window, click Devices.
    2. Expand the Libraries folder, then right-click the library and select Enabled/Disable.
  • If inquire does not report the serial number or if the scan for devices operation does not detect the control port change, use the nsradmin command to change the control port:
    1. Log in as root or as Windows administrator on the NetWorker host that manages the control port.
    2. At the command prompt, type nsradmin The nsradmin prompt appears.
    3. To disable the library, type the following commands:

      type: NSR jukebox
      update enabled: no

    4. When nsradmin prompts you to update the resource, type yes.
    5. To update the control port, type:

      update control port: scsidev@b.t.l

      where b.t.l is the bus.target.lun of the library’s robotic arm (as reported by the inquire command).

    6. When nsradmin prompts you to update the resource, type yes.
    7. To re-enable the library, type:

      update enabled: yes

    8. When nsradmin prompts you to update the resource, type yes.
    9. To verify that the control port was changed and the library is now enabled, type print at the nsradmin prompt.

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