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HyperReplication Feature Guide for Block

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, 6800F V5, 18500 V5, 18500F V5, 18800 V5, and 18800F V5. It describes the working principle and application scenarios of the HyperReplication feature (for block). Also, it explains how to configure and manage the feature.
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Synchronizing a Remote Replication Pair

Synchronizing a Remote Replication Pair

In the scenario where the initial synchronization of a remote replication pair has been completed and then a host writes data to the primary resource or splits the remote replication pair, there will be data inconsistency between the primary resource and the secondary resource. In this case, you can synchronize the remote replication pair to ensure data consistency between the primary resource and secondary resource.

Prerequisites

  • The remote replication pair for which you want to perform data synchronization is not added to a consistency group.
  • The secondary resource protection status is read-only.
  • The Pair Running Status of the remote replication pair determines whether data synchronization can be performed for the remote replication pair, as shown in Table 3-20.
    Table 3-20 Status requirements for synchronizing a remote replication pair

    Running Status of a Remote Replication Pair

    Synchronizing a Synchronous Remote Replication Pair (Supported or Not)

    Synchronizing an Asynchronous Remote Replication Pair (Supported or Not)

    Normal

    No

    Yes

    Split

    Yes

    Yes

    Interrupted (link down)

    No

    No

    Interrupted (link up)

    Yes

    Yes

    To be recovered

    Yes

    Yes

    Synchronizing

    N/A

    No

    Invalid

    No

    No

Procedure

  1. Log in to DeviceManager.
  2. Choose Data Protection > Remote Replication > Remote Replication Pair.
  3. Right-click the remote replication pair you want to synchronize and choose Synchronize.

    The security alert dialog box is displayed.

  4. Confirm the remote replication pair synchronization.

    1. Confirm the information in the dialog box. Select I have read and understand the consequences associated with performing this operation. Click OK.

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

    2. Click OK.

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Updated: 2019-07-11

Document ID: EDOC1000181492

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