Backup image duplication
First Claim
Patent Images
1. A method comprising:
- configuring a duplication operation, wherein the configuring comprisesstoring information identifying a duplication window,storing information identifying a source storage device, andstoring information identifying a target storage device;
detecting whether data can be copied in deduplicated form, whereinthe detecting comprises comparing, between the source storage device and the target storage device at least one of a first segment size with a second segment size, a first type of chunk sizing with a second type of chunk sizing, or a first signature generation algorithm with a second signature generation algorithm;
calculating a predicted duplication rate, whereinthe predicted duplication rate comprises an estimated rate at which the data can be copied from the source storage device to the target storage device, andthe data is copied during the duplication window;
selecting a backup image to include in the duplication operation, whereinthe duplication operation comprises a plurality of backup images, andthe selecting is based on a size of the backup image, the predicted duplication rate, and the duplication window; and
executing the duplication operation during the duplication window, whereinthe executing comprises copying at least a portion of the data from the source storage device to the target storage device.
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Abstract
Various systems and methods for configuring a duplication operation. For example, a method involves specifying a duplication window, a source storage device, and a target storage device. When a duplication operation is executed, data is copied from the source storage device to the target storage device during the duplication window. The method also involves calculating a predicted duplication rate, where the predicted duplication rate is an estimate of a rate at which data can be copied from the source storage device to the target storage device.
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Citations
17 Claims
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1. A method comprising:
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configuring a duplication operation, wherein the configuring comprises storing information identifying a duplication window, storing information identifying a source storage device, and storing information identifying a target storage device; detecting whether data can be copied in deduplicated form, wherein the detecting comprises comparing, between the source storage device and the target storage device at least one of a first segment size with a second segment size, a first type of chunk sizing with a second type of chunk sizing, or a first signature generation algorithm with a second signature generation algorithm; calculating a predicted duplication rate, wherein the predicted duplication rate comprises an estimated rate at which the data can be copied from the source storage device to the target storage device, and the data is copied during the duplication window; selecting a backup image to include in the duplication operation, wherein the duplication operation comprises a plurality of backup images, and the selecting is based on a size of the backup image, the predicted duplication rate, and the duplication window; and executing the duplication operation during the duplication window, wherein the executing comprises copying at least a portion of the data from the source storage device to the target storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory computer readable storage medium storing program instructions executable to:
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configure a duplication operation, wherein configuring the duplication operation comprises storing information identifying a duplication window, storing information identifying a source storage device, and storing information identifying a target storage device; detect whether data can be copied in deduplicated form, wherein detecting whether data can be copied in deduplicated form comprises comparing, between the source storage device and the target storage device at least one of a first segment size with a second segment size, a first type of chunk sizing with a second type of chunk sizing, or a first signature generation algorithm with a second signature generation algorithm; calculate a predicted duplication rate, wherein the predicted duplication rate comprises an estimated rate at which the data can be copied from the source storage device to the target storage device, and the data is copied during the duplication window; select a backup image to include in the duplication operation, wherein the duplication operation comprises a plurality of backup images, and selecting the backup image is based on a size of the backup image, the predicted duplication rate, and the duplication window; and execute the duplication operation during the duplication window, wherein executing the duplication operation comprises copying at least a portion of the data from the source storage device to the target storage device. - View Dependent Claims (10, 11, 12, 13)
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14. A system comprising:
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one or more processors; and a memory coupled to the one or more processors, wherein the memory stores program instructions executable by the one or more processors to; configure a duplication operation, wherein configuring the duplication operation comprises storing information identifying a duplication window, storing information identifying a source storage device, and storing information identifying a target storage device; detect whether data can be copied in deduplicated form, wherein detecting whether data can be copied in deduplicated form comprises comparing, between the source storage device and the target storage device at least one of a first segment size with a second segment size, a first type of chunk sizing with a second type of chunk sizing, or a first signature generation algorithm with a second signature generation algorithm; calculate a predicted duplication rate, wherein the predicted duplication rate comprises an estimated rate at which the data can be copied from the source storage device to the target storage device, and the data is copied during the duplication window; select a backup image to include in the duplication operation, wherein the duplication operation comprises a plurality of backup images, and selecting the backup image is based on a size of the backup image, the predicted duplication rate, and the duplication window; and execute the duplication operation during the duplication window, wherein executing the duplication operation comprises copying at least a portion of the data from the source storage device to the target storage device. - View Dependent Claims (15, 16, 17)
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Specification