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Remote Replication Feature Guide for File 04

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R002

"This document describes the file system remote replication feature, in terms of the implementation principle,application scenario, and explains how to configure and manage this feature."
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Overview

Overview

This section describes the background, definition, purposes, and benefits of the remote replication feature.

Background

As the digitalization drive advances in various industries, data has become critical to the operation of enterprises, and customers impose increasingly demanding requirements on the stability of storage systems. Although some storage devices offer extremely high stability, they fail to prevent irrecoverable damage to production systems caused by natural disasters. To ensure the consistency, recoverability, and high reliability of data access, remote disaster recovery solutions emerge. The remote replication technology is one of the key technologies used by remote disaster recovery solutions.

Definition

The remote replication feature developed by Huawei is called HyperReplication. When a storage system runs file services, asynchronous remote replication can be used to synchronize data periodically and mitigate performance deterioration caused by remote data transmission to the maximum.

Purposes and Benefits

Table 1-1 lists the purposes and benefits of the remote replication feature.
Table 1-1  Purposes and benefits of the remote replication feature

Function of Remote Replication

Purpose

Benefit

Remote backup and recovery

To recover service data using backup data in the remote storage system after the service data becomes unusable.

This feature prevents damage caused by data loss in the case that data at the primary site becomes unusable.

Continuous support for services

To quickly switch service data from the primary site to the secondary site, protecting service continuity.

This feature prevents damage caused by a service interruption upon a failure at the primary site.

Disaster recovery

To recover data at the primary site using backup data at the secondary site in the case of a disaster.

This feature prevents the damage caused by service data loss or long recovery duration.

Note 1: The primary site is a data center that includes the primary storage system, application servers, and links.

Note 2: The secondary site is a backup center that includes the secondary storage system, application servers, and links.

Note 3: Unless otherwise specified, hosts mentioned in this document refer to application servers.

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Updated: 2019-01-02

Document ID: EDOC1000069276

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