System, method and computer program product for generating a consistent point in time copy of data
Generating a consistent point in time copy of data in a source volume and a target volume is achieved responsively to a first data modification request by writing a first altered version of the data onto a single source volume, asynchronously transferring the first altered version from the first sto...
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| creator | NURIEL IFAT ASHOUR GAL FACTOR MICHAEL BOYD KENNETH WAYNE MALUL ELI GLUCK OLYMPIA TZAFRIR DALIT WERNER SAM CLARK PRIVMAN-HORESH NOA FIENBLIT SHACHAR HAYARDENY AMIRAM |
| description | Generating a consistent point in time copy of data in a source volume and a target volume is achieved responsively to a first data modification request by writing a first altered version of the data onto a single source volume, asynchronously transferring the first altered version from the first storage site to a target volume located at a remote second storage site, while avoiding copying the first altered version onto other volumes at the first storage site. While asynchronously transferring the first altered version de-queuing a second modification request, and responsively to the second modification request synchronously transferring the first altered version from the first storage site to the target volume. Then a second altered version of the data is written to the single source volume and a copy transferred to the target volume in like manner. |
| format | Patent |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| title | System, method and computer program product for generating a consistent point in time copy of data |
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