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OceanStor 2200 V3 and 2600 V3 Storage System V300R005 SmartVirtualization Feature Guide 07

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What Can I Do If an External LUN Abnormality Has Been Rectified on a Heterogeneous Storage System but the Corresponding Remote LUN or eDevLUN Information on the Local Storage System Fails to Be Updated or the Remote LUN Information Fails to Be Displayed?

What Can I Do If an External LUN Abnormality Has Been Rectified on a Heterogeneous Storage System but the Corresponding Remote LUN or eDevLUN Information on the Local Storage System Fails to Be Updated or the Remote LUN Information Fails to Be Displayed?

Question

What can I do if an external LUN abnormality has been rectified on a heterogeneous storage system but the corresponding remote LUN or eDevLUN information on the local storage system fails to be updated or the remote LUN information fails to be displayed?

Answer

If a local storage system has one of the following abnormalities after the external LUN mapped from a heterogeneous storage system becomes normal, manually scan the local storage system for LUNs:
  • The local storage system cannot display information about the remote LUN corresponding to the external LUN.
  • The remote LUN corresponding to the external LUN on the local storage system is still in the fault state.
  • The eDevLUN is still in the faulty state.
Use one of the following methods to scan for LUNs:
  • Start an automatic LUN scan in DeviceManager.
  • In CLI, run the scan remote_lun command.
NOTE:

The operations in the following procedure are based on DeviceManager. For details about how to use scan remote_lun, see OceanStor 2200 V3&2600 V3 Storage System V300R005 Command Reference .

  1. Log in to the DeviceManager for the local storage system.
  2. Go to the Automatic LUN Scan dialog box.
    1. On the navigation bar, click Data Protection.

      The Data Protection page is displayed.

    2. In the left function pane, click Remote Device.

      The Remote Device page is displayed.

    3. Based on Name and SN, select the remote device that corresponds to the heterogeneous storage system. In the lower function pane, click Automatic Scan.

      The OK dialog box is displayed.

  3. Click OK to start an automatic LUN scan.

    DeviceManager then scans for LUNs, and updates information about the remote LUN and eDevLUN, making the information consistent with information about the external LUN.

  4. Click Close.
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Updated: 2018-12-29

Document ID: EDOC1000106155

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