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US Patent 12105982 Techniques for optimized data resynchronization between replication sites

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
121059821
Patent Inventor Names
Nagapraveen Veeravenkata Seela1
Vasudevan Subramanian1
Alan L. Taylor1
Michael C. Brundage1
Date of Patent
October 1, 2024
1
Patent Application Number
181229781
Date Filed
March 17, 2023
1
Patent Citations
‌
US Patent 11513684 Data storage system management techniques and metrics
1
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US Patent 7149858 Synchronous replication for system and data security
1
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US Patent 6907507 Tracking in-progress writes through use of multi-column bitmaps
1
Patent Primary Examiner
‌
Shawn X Gu
1
CPC Code
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G06F 16/275
1
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G06F 3/0679
1
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G06F 3/0655
1
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G06F 3/0653
1
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G06F 3/065
1
Patent abstract

Techniques for resynchronizing storage resources of two sites configured for synchronous replication can include tracking in-progress write requests in a map. Responsive to a site failure or a replication link failure resulting in failure or fracture of the synchronous replication, processing can be performed to resynchronize impacted resources of the two sites configured for synchronous replication. The processing can use the in-progress write requests in combination with resource snapshots and snapshot differences to resynchronize the impacted resource of the two sites. In at least one embodiment, the synchronous replication configuration can include active paths between both sites and a host. In at least one embodiment, the synchronous replication configuration can include an active path between the host and one site, and a passive path between the host and the second site. The synchronous replication can be bi-directional or two-way synchronous replication between the two sites.

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