Method for consistent copying of storage volumes

Provided is a method for copying storage. Copy operations are performed on source storage units to copy to target storage units, wherein the copy operations create a consistent copy of the source storage units in the target storage units. While performing a copy operation to copy from one source sto...

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Bibliographic Details
Main Authors Werner, Sam Clark, Micka, William Frank, Tai, Sivan, Nuriel, Ifat, Rahav, Sheli, Spear, Gail Andrea, Stanley, Warren K
Format Patent
LanguageEnglish
Published 06.01.2009
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Summary:Provided is a method for copying storage. Copy operations are performed on source storage units to copy to target storage units, wherein the copy operations create a consistent copy of the source storage units in the target storage units. While performing a copy operation to copy from one source storage unit to one target storage unit, a write operation is restricted from being performed on the one source storage unit, until the copy operations have been performed on the source storage units.