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HyperReplication Feature Guide for Block

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, 6800F V5, 18500 V5, 18500F V5, 18800 V5, and 18800F V5. It describes the working principle and application scenarios of the HyperReplication feature (for block). Also, it explains how to configure and manage the feature.
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Data Recovery

Data Recovery

If the primary site fails, the secondary site takes over its services. When the primary site recovers, it takes control of those services again.

After the primary site recovers from a disaster, it is required to rebuild a remote replication relationship between the primary and secondary storage systems. You can use the data of the secondary site to recover that of the primary site. Figure 1-5 shows how the storage system recovers data at the primary site after a disaster.

Figure 1-5 Process of recovering data at the primary site after a disaster
NOTE:

In asynchronous remote replication scenarios, the storage systems perform data synchronization until data differences between the primary and secondary LUNs are minimal. Then, services are stopped and the last data synchronization is executed. This prevents data loss and minimizes the service downtime.

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Updated: 2019-07-11

Document ID: EDOC1000181492

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