Invention Grant
- Patent Title: Elastic, ephemeral in-line deduplication service
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Application No.: US16807636Application Date: 2020-03-03
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Publication No.: US11537573B2Publication Date: 2022-12-27
- Inventor: Saeed Ghanbari , Barry Patrick Benight , Deepak Raghu Kenchammana-Hosekote , Shiva Chaitanya
- Applicant: NetApp Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp Inc.
- Current Assignee: NetApp Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Cooper Legal Group, LLC
- Main IPC: G06F16/215
- IPC: G06F16/215 ; G06F16/2458 ; G06F16/174

Abstract:
A deduplication service can be provided to a storage domain from a services framework that expands and contracts to both meet service demand and to conform to resource management of a compute domain. The deduplication service maintains a fingerprint database and reference count data in compute domain resources, but persists these into the storage domain for use in the case of a failure or interruption of the deduplication service in the compute domain. The deduplication service responds to service requests from the storage domain with indications of paths in a user namespace and whether or not a piece of data had a fingerprint match in the fingerprint database. The indication of a match guides the storage domain to either store the piece of data into the storage backend or to reference another piece of data. The deduplication service uses the fingerprints to define paths for corresponding pieces of data.
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