ESSENTIAL METADATA REPLICATION

Methods, apparatus and computer program products implement embodiments of the present invention that include defining, in a storage system including receiving, by a storage system, a storage request, and identifying, based on the storage request, one or more storage management units. For each of the...

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Bibliographic Details
Main Authors CHAMBLISS David D, GARMIZA Ehood, SHALEV Leah
Format Patent
LanguageEnglish
Published 04.08.2016
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Methods, apparatus and computer program products implement embodiments of the present invention that include defining, in a storage system including receiving, by a storage system, a storage request, and identifying, based on the storage request, one or more storage management units. For each of the storage management units, a master partition table having multiple master entries and one or more backup partition tables is identified, each of the backup partition tables having backup entries in a one-to-one-correspondence with the master entries. Upon detecting a failure in master partition table, one of the backup partition tables is configured as a replacement master partition table, essential metadata is used to calculate non-essential metadata in the replacement master partition table, and the calculated non-essential metadata is stored to the replacement master partition table.
Bibliography:Application Number: US201615095361