STORAGE SYSTEM AND STORAGE CONTROL METHOD

A snapshot virtual device (SS-VDEV) is prepared for each snapshot family (SS-Family) and a deduplication virtual device is prepared apart from the SS-VDEV. When the same data is in a plurality of VOLs of the SS-Family, a storage system maps a plurality of addresses of the same data among the plurali...

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Bibliographic Details
Main Authors YAMAGA, Yusuke, MATSUSHITA, Takaki, YOSHIHARA, Tomohiro, MASUDA, Naoyuki, TATSUMI, Ryosuke
Format Patent
LanguageEnglish
Published 30.05.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A snapshot virtual device (SS-VDEV) is prepared for each snapshot family (SS-Family) and a deduplication virtual device is prepared apart from the SS-VDEV. When the same data is in a plurality of VOLs of the SS-Family, a storage system maps a plurality of addresses of the same data among the plurality of VOLs to address of the SS-VDEVs of the SS-Family. When duplicated data is in two or more SS-VDEVs, the storage system maps two or more addresses of the duplicated data of the two or more SS-VDEVs to addresses corresponding to the duplicated data among the deduplication virtual devices.
Bibliography:Application Number: US202318119162