NAS system and remote copy method

The present invention relates to a system that includes one or more logical volumes for storing data; a snapshot producing section for producing snapshots for the logical volumes based on a pre-scheduled snapshot acquisition time; a remote copy section for remote copying difference data for the snap...

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Bibliographic Details
Main Authors NAKAMURA SADAHIRO, YAMASAKI YASUO
Format Patent
LanguageEnglish
Published 10.09.2013
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The present invention relates to a system that includes one or more logical volumes for storing data; a snapshot producing section for producing snapshots for the logical volumes based on a pre-scheduled snapshot acquisition time; a remote copy section for remote copying difference data for the snapshots based on pre-scheduled remote copy start times; and a scheduling section for re-scheduling the time of one or more of an Nth snapshot acquisition time, an remote copy start time, and an (N+1)th remote copy start time, in such a manner that remote copying starting at the Nth remote copy start time finishes by the (N+1)th remote copy start time.
Bibliography:Application Number: US201213407989