Invention Grant
- Patent Title: Snapshot metadata arrangement for efficient cloud integrated data management
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Application No.: US17029920Application Date: 2020-09-23
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Publication No.: US11768803B2Publication Date: 2023-09-26
- Inventor: Sharad Jain , Hrishikesh Ashok Tapaswi , Ling Zheng , Onkar Bhat , Akhil Kaushik
- Applicant: NetApp, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NETAPP, INC.
- Current Assignee: NETAPP, INC.
- Current Assignee Address: US CA San Jose
- Agency: Troutman Pepper Hamilton Sanders LLP (NetApp)
- Main IPC: G06F16/00
- IPC: G06F16/00 ; G06F16/11 ; G06F16/13 ; G06F11/14

Abstract:
A storage appliance arranges snapshot data and snapshot metadata into different structures, and arranges the snapshot metadata to facilitate efficient snapshot manipulation, which may be for snapshot management or snapshot restore. The storage appliance receives snapshots according to a forever incremental configuration and arranges snapshot metadata into different types of records. The storage appliance stores these records in key-value stores maintained for each defined data collection (e.g., volume). The storage appliance arranges the snapshot metadata into records for inode information, records for directory information, and records that map source descriptors of data blocks to snapshot file descriptors. The storage appliance uses a locally generated snapshot identifier as a key prefix for the records to conform to a sort constrain of the key-value store, which allows the efficiency of the key-value store to be leveraged. The snapshot metadata arrangement facilitates efficient snapshot restore, file restore, and snapshot reclamation.
Public/Granted literature
- US20210004353A1 SNAPSHOT METADATA ARRANGEMENT FOR EFFICIENT CLOUD INTEGRATED DATA MANAGEMENT Public/Granted day:2021-01-07
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