Capacity management in deduplication storage systems

摘要

A deduplication storage capacity is estimated as a function of an expected deduplication ratio, the expected deduplication ratio being a combined average of a current deduplication ratio and a configured deduplication ratio, the current deduplication ratio depending on the data currently stored in the deduplication storage, and the configured deduplication ratio being an estimate made at a configuration stage of the deduplication computing storage environment.

主权项

1. A method for capacity management in a deduplication computing storage environment by a processor device, comprising:
estimating a deduplication storage capacity as a function of an expected deduplication ratio, the expected deduplication ratio being an aggregation of a current deduplication ratio and a configured deduplication ratio, the current deduplication ratio depending on data currently stored in deduplication storage, and the configured deduplication ratio being an estimate made at a configuration stage of the deduplication computing storage environment; wherein estimating the deduplication storage capacity includes estimating Scapacity as a function of Pcapacity, Pconsumed, Rexpected, and Dnominal, where Scapacity is the deduplication storage capacity, Pcapacity is a physical storage capacity of the deduplication storage environment, Pconsumed is an amount of physical storage consumed in the deduplication storage environment, Rexpected is the expected deduplication ratio, and Dnominal is a nominal size of data currently stored in the deduplication storage environment.