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OceanStor 2600 V3 Storage System V300R005 HyperMetro Feature Guide 06

"This document describes the implementation principles and application scenarios of theHyperMetro feature. Also, it explains how to configure and manage HyperMetro."
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Forcibly Enabling a HyperMetro Pair

Forcibly Enabling a HyperMetro Pair

In a scenario where a system fault occurs or the quorum server fails to implement arbitration, you can forcibly enable the local or remote site to manually allow the local or remote site to continue to provide services.

Prerequisites

  • The following requirements must be met before performing this operation: Link Status and Running Status of HyperMetro pair is Disconnected and Paused or To be synchronized, respectively and the local resource data is unreadable and unwritable.
  • To ensure data security, check whether the host access status of the remote LUN is Access denied before forcibly starting a HyperMetro pair.
    • If yes, you can forcibly start the pair at the local end.
    • If no, disconnect the remote storage array from the service host and quorum server. Then you can forcibly start the pair at the local end. After the HyperMetro pair is started, reconnect the storage array to the service host and quorum server.

Context

If HyperMetro works in Static Priority Mode or the HyperMetro service encounters concurrent faults, the storage array at the preferred site malfunctions and cannot take over the HyperMetro service. As a result, the HyperMetro service stops. Forcibly start the service at the non-preferred site to restore the HyperMetro service.

When HyperMetro works in Static Priority Mode or the HyperMetro service encounters concurrent faults, if one storage system can carry services, do not forcibly start the faulty storage system to carry host services.

Procedure

  1. Log in to DeviceManager.
  2. Choose Data Protection > HyperMetro > HyperMetro Pair.
  3. Click the HyperMetro Pair tab.

    The HyperMetro Pair management page is displayed.

  4. Right-click a HyperMetro pair that you want to enable forcibly and choose Force Start from the short-cut menu.

    The security alert dialog box is displayed.

  5. Confirm the operation to forcibly enable the HyperMetro pair.

    1. Confirm the information of the dialog box and select I have read and understand the consequences associated with performing this operation. Then click OK.

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

    2. Click OK.

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Updated: 2018-09-03

Document ID: EDOC1000106183

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