Invention Grant
- Patent Title: File system restoration using block-based snapshots and file system consistency check
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Application No.: US16385270Application Date: 2019-04-16
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Publication No.: US11093347B2Publication Date: 2021-08-17
- Inventor: Ajay Potnis , Adnan Sahin , Kiran B. Halwai
- Applicant: EMC IP Holding Company LLC
- Applicant Address: US MA Hopkinton
- Assignee: EMC IP Holding Company LLC
- Current Assignee: EMC IP Holding Company LLC
- Current Assignee Address: US MA Hopkinton
- Agency: Muirhead and Saturnelli, LLC
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G06F16/11

Abstract:
Techniques for performing a restoration may include: creating a first snapshot of a primary file system at a first point in time; and at a second point in time, performing first processing to restore at least a portion of the primary file system from the first point in time. The first processing may include: creating a second snapshot of the first snapshot of the primary file system; exporting the second snapshot as a first target device; mounting the first target device as a read-write checkpoint file system; performing file system consistency processing on the read-write checkpoint file system; and subsequent to performing the file system consistency processing on the read-write checkpoint file system, restoring at least a portion of the primary file system from the second snapshot using the read-write checkpoint file system. The file system consistency processing may include correcting metadata inconsistencies of the read-write checkpoint file system.
Public/Granted literature
- US20200334111A1 FILE SYSTEM RESTORATION USING BLOCK-BASED SNAPSHOTS AND FILE SYSTEM CONSISTENCY CHECK Public/Granted day:2020-10-22
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