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There Is No Free Lunch With Distributed Data White Paper: Consistency, Availability, and Partition-Tolerance Trade-Offs on Distributed Data Access Systems

PublisherHewlett Packard
Format108.2KB PDFDate added01 May 2005
Topics File and Network Servers, Wide Area Networks (WAN)
Downloads75

There is no "free lunch" with distributed data. The "CAP theorem" research described shows that one of the three (consistency, availability, and partition-tolerance) has to be traded away. HP EFS WAN Accelerators offer application acceleration that is always consistent regardless of network and server failures, with the best availability that is possible. The EFS WAN Accelerator's Proxy File Service configuration allows a choice of higher availability for local file data for applications where that is useful. Competing products claiming higher availability in all situations are necessarily sacrificing consistency, partition-tolerance, or both.

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