You can obtain the ESN in three ways: from the device's front panel, on the DeviceManager, and using command lines.
Procedure
l View the ESN on the mounting ear of your device's front panel.
l On the navigation bar of the DeviceManager, click Home. In the function pane, view the SN in the Basic Information area.
l Log in to the command-line interface (CLI). Then, run the show system general command and view the SN.
More Information
For more information, see the OceanStor V3 Converged Storage V300R005C00 License Application Instructions.