Parity log with delta bitmap

In a parity-based redundancy scheme, a log is maintained that contains a record of storage writes and associated redundancy backups. A mapping of allocation information indicative of free and allocated portions of storage is stored. An indication is received of a change to the free and allocated por...

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Bibliographic Details
Main Authors Patel, Sachin, Mehra, Karan
Format Patent
LanguageEnglish
Published 10.12.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:In a parity-based redundancy scheme, a log is maintained that contains a record of storage writes and associated redundancy backups. A mapping of allocation information indicative of free and allocated portions of storage is stored. An indication is received of a change to the free and allocated portions of storage. An update to the mapping of allocation information is determined, and the update to the mapping of allocation information is stored. The stored update is accessed and the redundancy backup is synchronized with stored data in response to a power interruption.
Bibliography:Application Number: US201815985601