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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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What Is the Relationship Among Remote Replication, Clone, and Consistency Group?

What Is the Relationship Among Remote Replication, Clone, and Consistency Group?

Question

What is the relationship among remote replication, clone, and consistency group?

Answer

The relationship among remote replication, clone, and consistency group is described as follows:

  • Remote replication and consistency group can be implemented only between storage systems while clone can be implemented only in a single storage system.
  • A remote replication task involves two types of objects: pairs and remote replication consistency groups. A clone only involves pairs.
  • A consistency group manages remote replication pairs in it in a unified manner. When a consistency group implements synchronization, splitting, or a primary/secondary switchover, the operation applies to remote replication pairs in the consistency group at the same time, ensuring data consistency among multiple LUNs.
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Updated: 2019-07-11

Document ID: EDOC1000181492

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