| 摘要 |
The present invention provides a system for and method of retrieval-based data redundancy. In an embodiment, a first write operation is performed on a data object at a first storage subsystem to form a first version of the data object, the data object being included among a plurality of data objects of primary data. An identification of the data object is sent to a second storage subsystem. Using the identification of the data object received by the second storage subsystem the data object is retrieved from the first storage subsystem. The retrieved data object is applied to a secondary data at the secondary storage subsystem, the secondary data being redundant of the primary data.
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