Document Type

Technical Report

Publication Date

3-29-1990

Technical Report Number

PCS-TR90-145

Abstract

Many consistency or replication control schemes that increase data availability in distributed systems exist, and the search for improvements continues, though there have been no good nontrivial upper bound demonstrating how much improvement is possible. We present a new upper bound for data availability under replication for general networks. In addition we also describe a new technique that yields near optimal levels of data availability with respect to this bound.

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