No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

FusionStorage V100R006C30 Block Storage Service Disaster Recovery Feature Guide 03

Rate and give feedback:
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).
Creating a HyperMetro Pair

Creating a HyperMetro Pair

Scenarios

After specifying a HyperMetro domain (including local and remote devices and a quorum server), device resources at two sites, and data synchronization attributes, you can create a HyperMetro relationship (HyperMetro pair) for devices at the two sites. After the HyperMetro relationship is established, the quorum server and preferred site mechanisms can determine which site continues providing services in the event of a disaster to minimize data losses and service interruptions.

Perform this operation only for the local FusionStorage Block system.

Prerequisites

  • You have logged in to FusionStorage Block Self-Maintenance Platform.
  • The local and remote devices work normally and correctly communicate with each other.
  • The remote volume has not been mapped to a host.
  • You have obtained the remote volume ID from the volume information list on the remote device.
  • You have created the volumes that are used to create the pair at the local and remote sites. If volumes have not been created, create the volumes first. For details, see Creating a Volume.

Procedure

    1. On FusionStorage Block Self-Maintenance Platform, choose DR Service > dr > DR Cluster, click Manage HyperMetro in the row where the cluster resides.
    2. Choose HyperMetro Pair Management, and click Create.

      The Create HyperMetro Pair page is displayed.

    3. Select a local volume and set the remote volume ID. Click Next.

      NOTE:
      • Ensure that the size of the local volume is consistent with that of the remote volume.
      • Encrypted volumes cannot be used to create the HyperMetro pair.
      • If the volumes used to create the HyperMetro pair are configured with a QoS policy, configure the same QoS policy for the local and remote volumes.

    4. Set parameters for the HyperMetro pair.

      Table 2-19 lists the configuration parameters.

      Table 2-19  HyperMetro pair configuration parameters

      Name

      Description

      Example Value

      Restoration Policy

      A restoration policy determines whether the system automatically synchronizes data after the fault is rectified.
      • Automatic: The system automatically synchronizes data.
      • Manual: Data synchronization must be performed manually.

      Automatic

      Synchronization Speed

      Data replication speed of the HyperMetro service
      • Low: When the synchronization speed is set to Low, data synchronization takes a relative long period of time. This speed applies to scenarios where the service load is heavy. The speed is 1 MB/s.
      • Medium: When the synchronization speed is set to Medium, data synchronization takes a relative short period of time. This speed applies to scenarios where the service load is relatively heavy. The speed is 32 MB/s.
      • High: When the synchronization speed is set to High, data synchronization takes a short period of time. This speed applies to scenarios where the service load is relatively light. The speed is 256 MB/s.
      • Highest: When the synchronization speed is set to Highest, data synchronization takes the shortest period of time. This speed applies to scenarios where the service load is light. The speed is 1024 MB/s.
      Medium
      NOTE:
      If the volumes used for creating the HyperMetro pair carry services and the service load changes constantly, you are advised to set the synchronization speed to Medium to ensure the proper running of services.

      Initial Synchronization

      Initial synchronization for data at local and remote sites

      • If data at the local and remote sites is inconsistent and needs to be synchronized after creation, set this parameter to ON.
      • If data at the local and remote sites is consistent and does not need to be synchronized after creation, set this parameter to OFF.

      ON

    5. Click Next.
    6. Select the target HyperMetro domain and click Create.
    7. In the dialog box that is displayed, determine whether to associate a consistency group, and then perform the following operations:

      • If you want to associate a consistency group, perform 8.
        NOTE:

        To perform this operation, an existing consistency group must be available. To associate the consistency group, the pair or consistency group must be in suspension state.

      • If you do not want to associate the consistency group, click OK to finish creating the consistency group.

    8. Click here.
    9. Select a consistency group for association and click OK.
    10. Associate the consistency group as prompted.
Translation
Download
Updated: 2019-01-17

Document ID: EDOC1100044928

Views: 17509

Downloads: 34

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next