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Basic Storage Service Configuration Guide for Block

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5300 V5, 5500 V5, 5600 V5, 5800 V5, 6800 V5, 5300F V5, 5500F V5, 5600F V5, 5800F V5, 6800F V5, 18500 V5, 18800 V5, 18500F V5, and 18800F V5. It describes the basic storage services and explains how to configure and manage them.
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Modifying a Host LUN ID

Modifying a Host LUN ID

A host LUN ID is an ID allocated by the storage system to a LUN mapped to a host. This ID is visible on the host. You can manually change host LUN IDs based on site requirements.


  • A mapping view has been created.
  • The LUN group in the existing mapping view contains LUNs.
  • Host services running on the LUN have been stopped. In addition, the LUN's physical disks and virtual disks generated by multipathing software have been uninstalled.


  • A host LUN ID is uniquely allocated to each LUN of a host.
  • LUNs of different hosts can have the same host LUN ID.


  1. Log in to DeviceManager.
  2. Choose Provisioning > Mapping View.
  3. Select a mapping view and click the LUN Group tab in the lower part of the left function pane.
  4. In the LUN group list, select the LUN whose host LUN ID you want to change and click Modify Host LUN ID.

    The Modify Host LUN ID dialog box is displayed.

  5. Select a new host LUN ID and click OK.
  6. Confirm the information in the dialog box and select I have read and understand the consequences associated with performing this operation.
  7. Click OK.

    A message is displayed, indicating that the operation succeeded.

  8. Click OK.

Follow-up Procedure

After modifying the host LUN ID, scan disks on the host again.

Updated: 2019-08-30

Document ID: EDOC1000181506

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