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HyperMirror Feature Guide

OceanStor V3 Series V300R006

This document is applicable to OceanStor 2200 V3, 2600 V3, 5300 V3, 5500 V3, 5600 V3, 5800 V3, 6800 V3, 18500 V3, and 18800 V3. This document describes the implementation principles and application scenarios of the HyperMirror feature. Also, it explains how to configure and manage HyperMirror.
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Adding a Mirror Copy

Adding a Mirror Copy

This operation allows you to add a mirror copy for a mirror LUN for backup.

Prerequisites

At least one HyperMirror has been created and the HyperMirror has only one mirror copy.

Context

Only system administrators are allowed to add a mirror copy.

Procedure

  1. Log in to DeviceManager.
  2. Go to the user interface of HyperMirror in vStore.

    Click vStore, select the desired vStore, and click Details to go to the vStore view. Choose Data Protection > HyperMirror.

  3. Select a HyperMirror for which you want to add a mirror copy. In the menu bar, click Add Mirror Copy.

    The Add Mirror Copy Wizard dialog box is displayed.

  4. Add a mirror copy for the selected mirror LUN.

    1. Select the storage pool where the mirror copy to be added resides.
      NOTE:

      If the mirror copy is a local LUN, select a storage pool that resides in a different disk domain from the existing mirror copy to ensure the high availability of the mirror copy.

    2. Determine the type of the mirror copy to be added. The type can be LUN or eDevLUN.
    3. Click Next.

  5. Optional: If eDevLUN is selected, select a LUN from a remote device.

    1. In the Remote Device drop-down list, select a remote device.
    2. In Available LUNs, select a remote LUN.

      The system automatically creates an eDevLUN using the selected remote LUN. The eDevLUN is used as a mirror copy of the mirror LUN.

  6. Set data synchronization properties.

    1. Select or deselect Initial synchronization based on service requirements.
      NOTE:

      If initial synchronization is not implemented, data consistency between mirror copies and mirror LUNs cannot be ensured. Initial synchronization is not needed if mirror LUNs are newly created and have not been read or written.

    2. Click Next.

  7. Confirm the settings of the mirror copy to be created.

    1. Confirm the settings of the mirror copy to be created and click Finish.

      The Execution Result dialog box is displayed indicating that the operation succeeded.

    2. Click Close.

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Updated: 2019-07-12

Document ID: EDOC1000138859

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