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

OceanStor 18500, 18800, and 18800F Storage System V100R001C30 Remote Replication Feature Guide 09

This document describes the remote replication feature, in terms of the implementation principle, application scenario, configuration process, and reference information.
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).
Splitting a Remote Replication

Splitting a Remote Replication

If you want a secondary LUN to save data on a primary LUN at a specific point in time, maintain a remote replication link, or expand network bandwidth, you must split the remote replication. After a remote replication is split, the application server only writes data on the primary LUN. This may cause data inconsistency between the primary LUN and secondary LUN.

Prerequisites

  • The remote replication that you want to split is not added to a consistency group.
  • Based on Pair Running Status and Secondary LUN Data Status of the remote replication, determine whether the remote replication can be split, as shown in Table 4-17.
    Table 4-17  Status requirements for splitting a remote replication

    Pair Running Status

    Secondary LUN Data Status

    Splitting a Synchronous Remote Replication

    Splitting an Asynchronous Remote Replication

    Normal

    Synchronized

    N/A

    Normal

    Consistent

    N/A

    Split

    Consistent

    ×

    ×

    Split

    Inconsistent

    ×

    ×

    Interrupted

    Consistent

    ×

    ×

    Interrupted

    Inconsistent

    ×

    ×

    To be recovery

    Consistent

    To be recovery

    Inconsistent

    Synchronizing

    Inconsistent

    Synchronizing

    Consistent

    Invalid

    Any status

    ×

    ×

Precautions

If the remote replication does not complete the initial synchronization, splitting the remote replication will cause data on the secondary LUN unavailable. Perform this operation with caution.

Procedure

  1. Go to the remote replication management page.
    1. On the right navigation bar, click .
    2. In the left function pane, click Remote Replication.
    3. Click the Remote Replication tab.

      The remote replication management page is displayed.

  2. Split a remote replication.
    1. Right-click the remote replication you want to split and choose Split.

      The security alert dialog box is displayed.

  3. Confirm the remote replication splitting.
    1. Confirm the information in the dialog box. Select I have read and understood the consequences associated with performing this operation. and click OK.

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

    2. Click OK.
Download
Updated: 2019-01-28

Document ID: EDOC1000077758

Views: 10704

Downloads: 65

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