Gartner Research

Improving Application Availability With Public Cloud Infrastructure Services

Published: 29 January 2014

ID: G00254788

Analyst(s): Kyle Hilgendorf

Summary

Organizations can achieve increased levels of availability with public cloud services — but only if architects properly design for it. This research walks cloud architects through improving application availability through possible architectures in cloud IaaS.

Table Of Contents

Summary of Findings

Guidance Context

  • Problem Statement
  • Guidance Applicability

The Gartner Approach

The Guidance Framework

  • Prework
  • Level 0. Basic VM Hosting
  • Level 1. Redundancy in a Single Zone
  • Level 2. Multiple Zones — Where the Public Cloud Shines
  • Level 3. Multiple Regions and Added Challenges
    • Software-Based Replication
    • Policy-Based DNS
  • Level 4: Multiple Providers — A Model for the Future
    • The Need for a Third-Party DNS Provider
    • Open Cloud Platforms Won't Solve Multiprovider Challenges
  • Follow-Up

Risks and Pitfalls

Gartner Recommended Reading

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