Invention Grant
- Patent Title: Data backup with rolling baselines
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Application No.: US15808713Application Date: 2017-11-09
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Publication No.: US10055154B2Publication Date: 2018-08-21
- Inventor: Ajith Balachandran , James Namboorikandathil Joseph , Michael R Eisler , Rahul Pradeep , Somesh Kumar , Vijay Srinath , Yuedong Mu
- Applicant: NetApp, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Gilliam IP PLLC
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F3/06 ; G06F11/14 ; G06F11/00

Abstract:
Techniques and components for backing up data are disclosed. A first subset of data units is selected from a plurality of data units of a storage system to create a first partial baseline for backup of the first storage system. The number of data units in the first subset of data units is determined based on a window size parameter n. Data within the storage system that has changed since a previous backup operation are identified. A first backup including the first partial baseline and the first changed data is written to a second storage system. For a data loss event, the techniques include selecting, based on a time of the determined data loss event in combination with n, the first backup and n−1 additional backups, wherein each of the n−1 additional backups include a partial baseline and changed data. The first backup and the n−1 additional backups are written to a third storage system.
Public/Granted literature
- US20180067669A1 DATA BACKUP WITH ROLLING BASELINES Public/Granted day:2018-03-08
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