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Administrator Guide 15

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R003

Routine maintenance activities are the most common activities for the storage device, including powering on or off the storage device, managing users, modifying basic parameters of the storage device, and managing hardware components. This document applies to the system administrators who are responsible for carrying out routine maintenance activities, monitoring the storage device, and rectifying common device faults.
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Creating a SmartErase Task

Creating a SmartErase Task

This operation enables you to sanitize the data on a LUN before discarding the LUN. The sanitized data cannot be recovered, which ensures data security.


The system provides the following two methods of data sanitation:
  • DoD: The system overwrites a LUN in accordance with US Department of Defense (DoD) Standards to destroy source data.
  • Customize: The system overwrites a LUN according to the configured overwrite times.


  • SmartErase cannot be used to destroy LUN data on SSD.
  • SmartErase is used to destroy data of thick LUNs created on the hard disk drive (HDD). A thin LUN cannot be fully destroyed because of capacity-on-write and space release.
  • A LUN has been added to a SmartCache partition cannot be destroyed by SmartErase.
  • An abnormal LUN cannot be destroyed by SmartErase.
  • A mapped LUN cannot be destroyed by SmartErase.
  • A LUN for which value-added services are configured cannot be destroyed by SmartErase.
  • A LUN whose migration property has not been set to No relocation cannot be destroyed by SmartErase.
  • If the SmartErase function is performed on a LUN and you need to continue to use this LUN, to ensure normal running of services, format the LUN and then configure services.


  1. Log in to DeviceManager.
  2. Choose Provisioning > LUN.
  3. Select a LUN whose data you want to sanitize, and choose More > Create SmartErase Task.

    The Create SmartErase Task dialog box is displayed.

  4. Configure the LUN data sanitation. For details about data sanitation parameters, see Table B-17.

    Table B-17  Parameters for LUN data sanitation





    Overwrite data based on the DoD standard to erase original data.




    The system overwrites the selected LUN according to the configured overwrite times.


    If this parameter is selected, Overwrite Times is valid.



    Overwrite Times

    Customize data overwrite times. More overwrite times indicate more thorough erase.

    [Value range]

    3 to 99



  5. Confirm the LUN data sanitation.


    If you want to stop the ongoing data sanitation, right-click the LUN and choose Delete SmartErase Task.

    1. Click OK.

      The Warning dialog box is displayed.

    2. Carefully read the content in the dialog box. Then select I have read and understand the consequences associated with performing this operation. for confirmation.
    3. Click OK.

      The Success message box is displayed, indicating that the operation succeeded.

    4. Click OK.
Updated: 2019-04-17

Document ID: EDOC1000084191

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