REGROUPING DATA DURING RELOCATION TO FACILITATE WRITE AMPLIFICATION REDUCTION

REGROUPING DATA DURING RELOCATION TO FACILITATE WRITE AMPLIFICATION REDUCTION

A technique for garbage collection in a storage system includes generating regrouping metadata for one or more pages of at least two logical erase blocks (LEB). The regrouping metadata indicates an associated stream for each of the pages. Multiple of the LEBs that include valid pages associated with...

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Bibliographische Detailangaben
Hauptverfasser: FRY AARON D, SIMMONS LINCOLN T, TOMIC SASA, AHMED RAZIK S, FISHER TIMOTHY J, IOANNOU NIKOLAS, ORR MATTHEW R, MA JASON, CAMP CHARLES J, PLETKA ROMAN A
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A technique for garbage collection in a storage system includes generating regrouping metadata for one or more pages of at least two logical erase blocks (LEB). The regrouping metadata indicates an associated stream for each of the pages. Multiple of the LEBs that include valid pages associated with a first stream are selected, based on the regrouping metadata, for regrouping. The valid pages associated with the first stream from the selected LEBs are regrouped into a new LEB.