NETWORK STORAGE FAILOVER SYSTEMS AND ASSOCIATED METHODS

Failover methods and systems for a networked storage environment are provided. In one aspect, a read request associated with a first storage object is received, during a replay of entries of a log stored in a non-volatile memory of a second storage node for a failover operation initiated in response...

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Bibliographic Details
Main Authors Mattankot, Nikhil, Subramanian, Ananthan, Pathan, Asif Imtiyaz, Sarfare, Parag, Kuo, Szu-Wen, Selvaraj, Santhosh
Format Patent
LanguageEnglish
Published 28.10.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Failover methods and systems for a networked storage environment are provided. In one aspect, a read request associated with a first storage object is received, during a replay of entries of a log stored in a non-volatile memory of a second storage node for a failover operation initiated in response to a failure at a first storage node. The second storage node operates as a partner node of the first storage node. The read request is processed using a filtering data structure that is generated from the log prior to the replay and identifies each log entry. The read request is processed when the log does not have an entry associated with the read request, and when the filtering data structure includes an entry associated with the read request, the requested data is located at the non-volatile memory.
Bibliography:Application Number: US202016855870