Host and Device Non-Blocking Coherent Rewrites

Host and Device Non-Blocking Coherent Rewrites

A host sends a storage system a command to read data from a memory and then a command to write the data back to the memory to defragment the data. The host sends flags along with the commands. The flag sent with the read command causes the storage system to take a snapshot of the logical-to-physical...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Shchislowski, Avi, Sobol, Eyal, Izrailov, Yuliy, Inbar, Karin
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A host sends a storage system a command to read data from a memory and then a command to write the data back to the memory to defragment the data. The host sends flags along with the commands. The flag sent with the read command causes the storage system to take a snapshot of the logical-to-physical address map relevant to the data. The flag sent with the write command causes the storage system to compare the snapshot with the current version of the logical-to-physical address map and write the data back to the memory only if there is a match.