EFFICIENCY SETS IN A DISTRIBUTED SYSTEM

摘要

Disclosed are systems, computer-readable mediums, and methods for efficiency sets in a distributed system. A first efficiency set is determined for a first volume of data. Determining the first efficiency set includes selecting block identifiers for data blocks of the first volume, where each block identifier is used to access a particular data block corresponding to the first volume. Determining the first efficiency set further includes applying a mask to the selected block identifiers to mask at least one bit of each selected block identifier. The first efficiency set is compared to a second efficiency set for a second data store, and based on the comparison, an amount of unique data blocks of the first volume is approximated.

主权项

1. A storage system comprising:
a server comprising one or more processors configured to:
determine a first efficiency set for a first volume of data, wherein to determine the first efficiency set the one or more processors are configured to:
select block identifiers for data blocks of the first volume, wherein each block identifier is used to access a particular data block corresponding to the first volume; andapply a first mask to the selected block identifiers to mask at least one bit of each selected block identifier;compare the first efficiency set to a second efficiency set for a second data store, wherein the second efficiency set is generated with a second mask; andapproximate, based on the comparison, an amount of unique data blocks of the first volume.