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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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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).
When Both the HyperMetro and Remote Backup Services Are Created, the Excessively Low Link Bandwidth Between Storage Systems Causes the Remote Backup Service to Fail

When Both the HyperMetro and Remote Backup Services Are Created, the Excessively Low Link Bandwidth Between Storage Systems Causes the Remote Backup Service to Fail

Question

Only one replication link is established between storage systems, and both the HyperMetro and remote backup services are created. In this scenario, why does the remote backup service fail?

When the host service bandwidth is higher than the replication network bandwidth between storage systems, the service with a high priority is preferentially processed. In the preceding scenario, the link bandwidth is too low. As a result, the service with a low priority fails.

NOTE:

HyperMetro and synchronous remote replication take precedence over HyperVault and asynchronous remote replication.

Answer

Perform the following operations:

  1. Increase the replication link bandwidth or the number of replication links to ensure that the replication network bandwidth is higher than or equal to the peak service bandwidth.
  2. Check whether the remote backup service is normal.

    • If the remote backup service is normal, no further action is required.
    • If the remote backup service is abnormal, contact Huawei technical support.

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Updated: 2018-09-03

Document ID: EDOC1000106183

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