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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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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuration Operations

Configuration Operations

After completing the network and service plans, configure the remote replication feature on the DeviceManager according to the plans.

Prerequisites

  • The connection between the storage system and application server at each site is normal.
  • The iSCSI connection between the primary storage system at site A and the secondary storage system at site B is normal.

Procedure

  1. Check the license file.

    Remote replication is a value-added feature. Before configuring this feature, you must make sure that the license file of the storage system grants the permission for the remote replication feature.

    On the navigation bar of the DeviceManager of each storage system, click Settings. Click License Magement. On the Active License tab page, check information about the license file for remote replication. If the license file does not grant the permission for remote replication, search for License in Help. Then follow the displayed instructions to import and activate the license file.

  2. Create a secondary filesystem in the secondary storage system at site B.
    1. Create a disk domain in the secondary storage system at site B.

      On the navigation bar of the DeviceManager, click Provisioning. And on the Storage Configuration and Optimization area, click Disk Domain to create DiskDomain_BK.

    2. Create a storage pool in the secondary storage system at site B.

      This step is fundamental for subsequent storage space configuration. A storage pool is a container, in which multiple FSs can be created.

      On the navigation bar of the DeviceManager, click Provisioning. And on the Storage Configuration and Optimization area, click Storage Pool to create StoragePool_BK.

    3. Create the secondary FS in the storage pool.

      Storage pool cannot be identified by hosts. The host can use the storage space only when the storage space of the storage pool is divided into FS, and shared them to the hosts.

      On the navigation bar of the DeviceManager, click Provisioning. And on the File Storage Service area, click File System to create a secondary FS. The secondary FS must have the same capacity as the primary FS (500 GB). Otherwise the system cannot detect the created secondary FS when you adding a secondary FS.

  3. Set up a logical connection between sites A and B.
    1. Configure host port IP addresses.

      This step is fundamental for setting up a logical connection between the two storage systems. The following uses port CTE0.R5.IOM0.P0 on the primary storage system at site A as an example to describe how to configure a port IP address. The procedure for any other host port on either site is the same.

      In the navigation tree, click Provisioning. Click Port, and click the host port whose IP address you want to change. In the dialog box that is displayed, click Properties. On the Properties of the Port dialog box, configure the IP address of the port.

    2. Add routes for iSCSI host ports of both the primary and secondary storage systems, perform this step when the host port on the primary storage system and that on the secondary storage system use IP addresses in different network segments.

      If the host ports use IP addresses in the same network segment, skip this step. The following uses the primary storage system at site A as an example to describe how to add a route for a host port. The procedure at site B is the same.

      After modifying host port IP address, select the host port need to add routes under the device view. Then click Route Management, and choose Add in the displayed diagnose box to add route information.

    3. Add a remote device in either the primary storage system at site A or the secondary storage system at site B.

      Add a remote device at one side to establish an usable link between two storage systems. The following uses the primary storage system at site A as an example to describe how to add a remote device. The procedure for the secondary storage system at site B is the same.

      On the navigation bar of the DeviceManager, click Data Protection, and click Remote Device. Choose Add Remote Device to add a remote device following the Add Remote Device Wizard dialog box.

      NOTE:
      • If remote devices are OceanStor 18000 series V1R1C20, T series V2R2C20, or OceanStor V3 series V3R1C10 or later, you need to use the machine-machine user. The default username and password of the machine-machine user are mm_user and mm_user@storage respectively.
        NOTE:
        You are advised to change your login password periodically in the future by executing the change mm_user password command. This reduces the password leakage risks. For details about how to use the command, see OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R002 Command Reference .
      • If remote devices are OceanStor 18000 series V1R1C10, T series V2R2C10, or OceanStor V3 series V3R1C00 or earlier, you need to use the super administrator or administrator account on the older version remote device. The username and password of the super administrator or administrator account are consistent with the password on the remote device.

    4. Add an iSCSI link.

      Only one link is selected between the storage systems during remote device adding. To ensure link redundancy, you must manually add links after the remote device is added.

      Select the added remote device and click Add Link. Set Link Type to iSCSI and then add desired links.

  4. Create an asynchronous remote replication.

    The created asynchronous remote replication session is used to implement remote data replication.

    On the navigation bar of the DeviceManager, click Data Protection, and click Remote Replication. Choose Create to create RP_001 following the Create Remote Replication Wizard dialog box.

    The following shows the properties of the asynchronous remote replication.

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Updated: 2019-01-02

Document ID: EDOC1000069276

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