Reclaiming storage resources

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reclaiming one or more portions of storage resources in a computer system serving one or more virtual computing instances, where the storage resources in the computer system are organized in cluste...

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Main Authors Hiregoudar, Mahesh S, Krishnamurthy, Pradeep, Shantharam, Srinivasa, Pichai, Raghavan, Desai, Asit, Aithal, Prasanna, Jangam, Prasad Rao, Branstetter, Bryan, Pasalkar, Rohan
Format Patent
LanguageEnglish
Published 11.08.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reclaiming one or more portions of storage resources in a computer system serving one or more virtual computing instances, where the storage resources in the computer system are organized in clusters of storage blocks. In one aspect, a method includes maintaining a respective block tracking value for each storage block that indicates whether a call to reclaim the storage block is outstanding; determining, from the block tracking values, a respective cluster priority value for each of the clusters based on a count of storage blocks in the respective cluster for which a call to reclaim is outstanding; and reclaiming a first portion of storage resources in the computer system in accordance with the cluster priority values.
Bibliography:Application Number: US201715644854