Gartner Research

Decision Point for Data Replication for HA/DR

Published: 04 March 2019

ID: G00381089

Analyst(s): Nik Simpson, Gabriel Chapman

Summary

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

Alternatives

  • 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

Gartner Recommended Reading

©2020 Gartner, Inc. and/or its affiliates. All rights reserved. Gartner is a registered trademark of Gartner, Inc. and its affiliates. This publication may not be reproduced or distributed in any form without Gartner’s prior written permission. It consists of the opinions of Gartner’s research organization, which should not be construed as statements of fact. While the information contained in this publication has been obtained from sources believed to be reliable, Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartner research may address legal and financial issues, Gartner does not provide legal or investment advice and its research should not be construed or used as such. Your access and use of this publication are governed by Gartner’s Usage Policy. Gartner prides itself on its reputation for independence and objectivity. Its research is produced independently by its research organization without input or influence from any third party. For further information, see Guiding Principles on Independence and Objectivity.

Already have a Gartner Account?

Become a client

Learn how to access this content as a Gartner client.