Continuous Data Protection Using Retroactive Backup Snapshots
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United States of America Patent
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Issued Date -
Jul 13, 2023
app pub date -
Mar 15, 2023
filing date -
Nov 18, 2020
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Abstract
Methods, storage systems and computer program products create a transactionally consistent backup of a database by generating, during a time period beginning with a first time and ending with a second time, a copy of the database including multiple tables. During the time period, queries that request updates to the tables are periodically generated and conveyed to a software system managing the database, responses including updates to the tables are received responsively to the periodic queries, and the received updates are stored to a journal. A set of the updates not stored in the copy are identified, in the journal, and copy of the database is updated with the updates so as to ensure that the copy includes the transactionally consistent backup of the database.
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