Dell products l.p. (20240232020). REPLICATION TECHNIQUES USING A METADATA LOG simplified abstract
Contents
REPLICATION TECHNIQUES USING A METADATA LOG
Organization Name
Inventor(s)
Vladimir Shveidel of Pardes-Hana (IL)
Vamsi K. Vankamamidi of Hopkinton MA (US)
REPLICATION TECHNIQUES USING A METADATA LOG - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240232020 titled 'REPLICATION TECHNIQUES USING A METADATA LOG
The abstract of the patent application describes data replication techniques involving receiving a write directed to a source logical device configured for asynchronous remote replication, flushing a transaction log entry, and using a replication queue to store the first content to a logical address. Metadata log entries are created for writes that have not been replicated, and the first content is retrieved from a storage location if not in cache.
- Write directed to source logical device for asynchronous remote replication
- Flushing transaction log entry
- Using replication queue to store first content to a logical address
- Creating metadata log entries for unreplicated writes
- Retrieving first content from storage location if not in cache
Potential Applications: - Data backup and disaster recovery systems - Synchronization of data between multiple systems - High availability and fault tolerance in storage environments
Problems Solved: - Ensuring data consistency across distributed systems - Efficient replication of data in real-time - Minimizing data loss in case of system failures
Benefits: - Improved data reliability and integrity - Faster recovery times in case of failures - Simplified management of data replication processes
Commercial Applications: Title: "Advanced Data Replication Technology for Enhanced Data Protection" This technology can be used in cloud storage services, enterprise data centers, and mission-critical applications where data integrity and availability are paramount. It can also be integrated into backup solutions and storage appliances to provide robust data protection capabilities.
Questions about Data Replication Technology: 1. How does this technology improve data reliability in distributed systems? 2. What are the key advantages of using a replication queue for storing data during the replication process?
Frequently Updated Research: Ongoing research in data replication focuses on optimizing replication algorithms for faster data transfer speeds and reducing the impact of replication on system performance. Researchers are also exploring new methods for ensuring data consistency and integrity across distributed systems.
Original Abstract Submitted
data replication techniques can include receiving, at a source system, a write directed to a source logical device configured for asynchronous remote replication to a destination system; performing processing that flushes a transaction log entry for the write; and performing replication processing that uses a replication queue including a replication queue entry corresponding to the write that stores the first content to a logical address. the processing can create a metadata (md) log entry in a md log for the write responsive to determining that the write is directed to the source logical device configured for asynchronous remote replication and that the first content has not been replicated. responsive to the first content not being in cache, the first content can be retrieved using the reference to a storage location storing the first content. the reference can be obtained from the mid log entry or the replication queue entry.
