Gartner Research

Decision Point for Data Replication for HA/DR

Published: 04 March 2019

ID: G00381089

Analyst(s): Nik Simpson , Gabriel Chapman


Replicating data is key in disaster recovery and high-availability scenarios. However, the variety of approaches available for replication is confusing. This document helps technical professionals understand the different approaches and select the most appropriate method to achieve their goals.

Table Of Contents

Decision Point Question

Decision Overview

Decision Tool

  • Selecting the Right Replication Mode
  • Selecting Replication Implementation
    • Selecting VM-Optimized Methods for VM Workloads
    • Selecting Methods for Host-Independent Replication
  • Replication for Cloud-Based Applications
  • Replication for Container-Based Applications
  • Selecting Additional Features
    • DR Orchestration
    • Application Consistency Groups
    • Public Cloud Integration

Principles, Requirements and Constraints

  • Principles
    • Single or Multiple Tools
    • Technology Maturity
    • Single or Multiuse Capabilities
    • Cost
  • Requirements and Constraints
    • Recovery Requirements
    • Active-Active Requirements
    • Application, Data Type and Platform Support Requirements
    • Processing/Network/Bandwidth Requirements
    • Management Requirements
    • Operational Requirements
    • Infrastructure and Technology Constraints
    • Organizational and Budgetary Constraints


  • Implementation Approach
    • Host-Based
    • VM-Optimized
    • Host-Independent
  • Replication Mode
    • Differences Between Synchronous, Asynchronous and Hybrid Replication
    • Different Types of Asynchronous Replication
    • Backup-Based Replication
  • Additional Features

Future Developments

  • Blending of Backup and DR Solutions
  • Public Cloud Use as a DR Site
  • Integration of Replication Technologies With DR Orchestration

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