INCREMENTAL COPY PERFORMANCE BETWEEN DATA STORES
First Claim
1. A system for copying a data object to a target storage pool using a hybrid of storage pools, in which at least one of the storage pools of the hybrid is particularly efficient at identifying data that should be used for copying the data object to the target storage pool, and at least one of the storage pools of the hybrid is particularly efficient at retrieving the data that should be sent to the target storage pool, the system comprising:
- a performance storage pool for storing data and having relatively high performance for retrieving stored data;
a deduplicating storage pool for storing deduplicated data, said deduplicating storage pool further storing metadata about data objects in the system and which has relatively high performance for identifying and specifying differences in a data object over time;
a controller for, in response to a command to copy a data object to the target storage pool, causing the deduplicating storage pool to identify and specify differences between a first version of a data object at a first instant in time and a second version of said data object at a second instant in time, for causing the specification of differences in the data object to be provided to the target storage pool, for causing the performance storage pool to retrieve any data specified in the differences specification that is not already stored at the target storage pool, and for causing the data retrieved by the performance storage pool to be provided to the target storage pool,thereby synchronizing the target storage pool to have the second version of the data object.
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Accused Products
Abstract
Systems and methods are disclosed for copying a data object to a target storage pool using a hybrid of storage pools, in which at least one of the storage pools is particularly efficient at identifying data that should be used for copying the data object to the target storage pool, and at least one of the storage pools is particularly efficient at retrieving the data that should be sent to the target storage pool. The system comprises a performance storage pool for storing data and having relatively high performance for retrieving stored data; a deduplicating storage pool for storing deduplicated data and storing metadata about data objects in the system and which has relatively high performance for identifying and specifying differences in a data object over time; and a controller for causing the performance storage pool to retrieve differences and provide the data to the target storage pool.
138 Citations
5 Claims
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1. A system for copying a data object to a target storage pool using a hybrid of storage pools, in which at least one of the storage pools of the hybrid is particularly efficient at identifying data that should be used for copying the data object to the target storage pool, and at least one of the storage pools of the hybrid is particularly efficient at retrieving the data that should be sent to the target storage pool, the system comprising:
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a performance storage pool for storing data and having relatively high performance for retrieving stored data; a deduplicating storage pool for storing deduplicated data, said deduplicating storage pool further storing metadata about data objects in the system and which has relatively high performance for identifying and specifying differences in a data object over time; a controller for, in response to a command to copy a data object to the target storage pool, causing the deduplicating storage pool to identify and specify differences between a first version of a data object at a first instant in time and a second version of said data object at a second instant in time, for causing the specification of differences in the data object to be provided to the target storage pool, for causing the performance storage pool to retrieve any data specified in the differences specification that is not already stored at the target storage pool, and for causing the data retrieved by the performance storage pool to be provided to the target storage pool, thereby synchronizing the target storage pool to have the second version of the data object. - View Dependent Claims (2, 3, 4, 5)
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Specification