18122978. TECHNIQUES FOR OPTIMIZED DATA RESYNCHRONIZATION BETWEEN REPLICATION SITES simplified abstract (Dell Products L.P.)

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TECHNIQUES FOR OPTIMIZED DATA RESYNCHRONIZATION BETWEEN REPLICATION SITES

Organization Name

Dell Products L.P.

Inventor(s)

Vasudevan Subramanian of Chapel Hill NC (US)

Michael C. Brundage of Cary NC (US)

Alan L. Taylor of Cary NC (US)

Nagapraveen Veeravenkata Seela of Cary NC (US)

TECHNIQUES FOR OPTIMIZED DATA RESYNCHRONIZATION BETWEEN REPLICATION SITES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18122978 titled 'TECHNIQUES FOR OPTIMIZED DATA RESYNCHRONIZATION BETWEEN REPLICATION SITES

Simplified Explanation: The patent application discusses techniques for resynchronizing storage resources of two sites configured for synchronous replication in case of failure or fracture of the replication.

Key Features and Innovation:

  • Tracking in-progress write requests in a map to aid in resynchronization.
  • Using resource snapshots and differences to resynchronize impacted resources.
  • Configurations include active paths between sites and a host, or an active path with a passive path between the host and sites.
  • Bidirectional or two-way synchronous replication between the two sites.

Potential Applications: This technology can be applied in data centers, disaster recovery systems, and high availability storage solutions.

Problems Solved: This technology addresses the challenges of maintaining data consistency and availability in synchronous replication setups in case of failures.

Benefits:

  • Improved data resynchronization in case of failures.
  • Enhanced data protection and availability.
  • Efficient utilization of storage resources.

Commercial Applications: The technology can be utilized by cloud service providers, enterprise storage solutions, and businesses requiring high availability data storage.

Prior Art: For prior art related to this technology, researchers can explore patents and publications in the field of data replication, disaster recovery, and storage systems.

Frequently Updated Research: Researchers can stay updated on advancements in data replication, disaster recovery techniques, and storage system resynchronization methods.

Questions about Synchronous Replication: 1. How does synchronous replication differ from asynchronous replication, and what are the advantages and disadvantages of each? 2. What are the key considerations for implementing synchronous replication in a storage environment, and how does it impact performance and data consistency?


Original Abstract Submitted

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 bidirectional or two-way synchronous replication between the two sites.

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