Conversion between full-data and space-saving snapshots

A method, system, computer system, and computer-readable medium that enable a copy of data to be converted from a full-data snapshot to a space-saving snapshot, or vice versa, while retaining all the contents of the snapshot. Full-data snapshots can be used for efficient read operations and off-host...

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Bibliographic Details
Main Authors DALAL CHIRAG DEEPAK, PENDHARKAR NIRANJAN S
Format Patent
LanguageEnglish
Published 07.04.2009
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A method, system, computer system, and computer-readable medium that enable a copy of data to be converted from a full-data snapshot to a space-saving snapshot, or vice versa, while retaining all the contents of the snapshot. Full-data snapshots can be used for efficient read operations and off-host processing operations. Space-saving snapshots can be used to store multiple copies of primary data in a minimum amount of storage space without consuming unnecessary storage space to store duplicate copies of data that are not changing. The ability to convert between full-data and space-saving snapshots enables organizational storage, backup, and recovery needs to be met using the best type of snapshot for a given operation.
Bibliography:Application Number: US20050216810