Windows Clustering

What Does Windows Clustering Mean?

Windows clustering is a strategy that uses Microsoft Windows and the synergy of independent multiple computers linked as a unified resource – often through a local area network (LAN). Clustering is more cost-effective than a single computer and provides improved system availability, scalability and reliability. Windows clustering also provides a single client name, a single administrative interface and data consistency across all nodes.


Windows clustering is also known as Microsoft clustering technology or Microsoft cluster server.

Techopedia Explains Windows Clustering

Windows clustering includes three primary components:

  • Server clustering: Maintains data integrity and provides failover support.
  • Network load balancing (NLB): Addresses bottlenecks resulting from front-end Web services.
  • Component load balancing (CLB): Addresses the unique scalability and availability needs of middle-tier applications.

Windows clustering guards against three types of failure: Application/service, system/hardware and site failures, which may result from power outages, connection failures or disasters.


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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.