Gartner Research

Data Center System High Availability

Published: 02 October 2008

ID: G00203609

Analyst(s): Richard Jones

Summary

As business operations' dependency on IT infrastructure continues to increase in response to the need for faster and leaner business processes, the need for these systems to be highly and continuously available also increases. Not only do high-availability designs focus on automatically detecting and reacting to failures, but, more importantly, they also focus on mitigating the downtime required for standard maintenance tasks. This Reference Architecture template outlines the approach and architecture to five levels of availability from no-recoverability to continuous availability and disaster recovery.

Table Of Contents

Template Applicability

Template Diagram

Template Description

  • Data Center Networks
  • Network Switches
  • Server Cluster
  • High-Availability Failover Software
    • Cluster Heartbeat
    • Quorum Manager
    • Cluster Resources
    • Resource Manager
    • Resource Monitors
  • Network Interface Controllers
  • Power Supplies
  • Storage Adapters
  • Storage Switches
  • Storage Devices
  • Power Distribution Systems
  • Cooling Systems

Revision History

Notes

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