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Remote Replication Feature Guide for File 04

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R002

"This document describes the file system remote replication feature, in terms of the implementation principle,application scenario, and explains how to configure and manage this feature."
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Configuration Verification

Configuration Verification

After configuring the remote replication feature, view the data status of the secondary file system of the remote replication session to check whether data replication from the primary file system to the secondary file system succeeded.

Prerequisites

  • Initial synchronization of the asynchronous remote replication has been complete.
  • Local authentication users have been created at the primary and secondary sites.
NOTE:

To authenticate Homedir information, create user information same as that in the primary storage system and enable Homedir sharing in the secondary storage system. After the Homedir share is mounted to the secondary storage system, you can verify the remote replication result.

Procedure

  1. Log in to DeviceManager, choose Provisioning > Share > CIFS (Windows/MAC), and click Create to create a CIFS share. Share the primary file system with the local authentication user in CIFS share mode.
  2. Check whether data replication succeeded.
    1. Log in to application server 1 at the primary site and write data X into the primary file system.
    2. Wait for 15 to 20 minutes and Click the remote replication, and choose More > Split to split the remote replication pair.
    3. Log in to the storage system at the primary site. Click the remote replication, and choose More > Disable Protection for Secondary Resource to disable protection for secondary resource.
    4. Share the secondary file system with the local authentication user in CIFS share mode.
    5. Log in to the client at the secondary site, load the CIFS share of the secondary file system, and check whether data X is successfully written into the secondary file system.

      • If yes, data replication succeeded.
      • If no, performing the following steps.
        • Log in to DeviceManager at the primary site. In the navigation tree, click Data Protection. Then click Remote Replication.
        • Right-click the remote replication that requires data synchronization and choose More > Enable Protection for Secondary Resource to enable protection for secondary resource.
        • Choose More > Synchronize to start data synchronization, and then check whether data replication succeeded.

  3. Check whether site B can take over services.
    1. Log in to DeviceManager at site B, click Data Protection on the navigation bar, and click Remote Replication. Click the remote replication, and choose More > Primary/Secondary Switchover to switch the secondary file system to the primary file system.
    2. Share the file system at the secondary site with the local authentication user in CIFS share mode.
    3. Log in to the secondary server at the secondary site and load the CIFS share of the file system. Write data into the primary file system (after the primary/secondary switchover), and check whether the secondary file system is readable and writable.

      • If yes, the secondary site can take over services.
      • If no, the secondary site cannot take over services.

  4. Check whether data can be recovered.
    1. Log in to DeviceManager at site B, click Data Protection on the navigation bar, and click Remote Replication. Click the remote replication, and choose More > Enable Protection for Secondary Resource to enable protection for secondary resource.
    2. Choose More > Synchronize to synchronize data manually.
    3. After data synchronization, log in to the storage system at the primary site. Click the remote replication, and choose More > Split.
    4. Choose More > Disable Protection for Secondary Resource.
    5. Log in to application server 1 at site A to check whether data block Y is on the secondary file system (after the primary/secondary switchover).

      • If yes, data can be recovered.
      • If no, data cannot be recovered.

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Updated: 2019-01-02

Document ID: EDOC1000069276

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