Pure Storage, Inc.
Feature-based deduplication

Abstract:

In one implementation, a method includes identifying, by a storage system controller associated with a plurality of storage devices, a first content-dependent feature associated with a data sector and determining, by the storage system controller, a baseline data sector associated with the data sector. The method further includes determining, by the storage system controller, a content-dependent delta between the first content-dependent feature and a second content-dependent feature of the baseline data sector and providing the content-dependent delta and an indicator to the baseline data sector for storage on the plurality of storage devices.