Gartner Research

Slow Storage Replication Requires the Redesign of Disaster Recovery Infrastructures

Published: 10 October 2016

ID: G00315232

Analyst(s): Dave Russell, Valdis Filks, Stanley Zaffos

Summary

Improved solid-state array performance is causing infrastructure and operations leaders to change their business continuity deployments, because network delay becomes a bottleneck when SSAs are implemented. I&O leaders must make asynchronous replication the default choice when updating DR processes.

Table Of Contents
  • Impacts

Analysis

Impacts and Recommendations

  • Applications and services that require submillisecond response time storage and high availability can't provide BC beyond internal data centers, prompting I&O leaders to redesign DR infrastructures
  • The order-of-magnitude improvement provided to I&O leaders by SSA response times means any synchronous replication method that creates a response time delay will significantly reduce the overall performance of the storage array and the application or service.
  • High-performance applications and services require that I&O leaders use methods other than synchronous storage array replication for high availability

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