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US 8,751,463 B1Granted
Capacity forecasting for a deduplicating storage system
AssigneeEMC Corporation
InventorMark Chamness
Life of this patent
Estimating the term…
Abstract
A system for managing a storage system comprises a processor and a memory. The processor is configured to receive storage system information from a deduplicating storage system. The processor is further configured to determine a capacity forecast based at least in part on the storage system information. The processor is further configured to provide a compression forecast. The memory is coupled to the processor and configured to provide the processor with instructions.
Claims17
A system for managing a storage system, comprising:
- a processor configured to:
- receive storage system information from a deduplicating storage system, wherein the deduplicating storage system:
- breaks each of at least a subset of files in an input data stream into a plurality of segments;
- determines, for each of at least a subset of the plurality of segments, whether the segment has been stored previously;
- and
- stores a segment in the event that the segment is determined to have not been previously stored, wherein at least a subset of stored segments is used to reconstruct more than one of the subset of files in the input data stream;
- determine a capacity forecast for the deduplicating storage system based at least in part on the storage system information, wherein the storage system information comprises a cumulative compressed size, wherein the cumulative compressed size comprises a physical used space after deduplicating;
- and
- provide the capacity forecast for the deduplicating storage system, wherein providing the capacity forecast is based at least in part on a capacity forecast model validation criteria, wherein the capacity forecast model validation criteria comprise one or more of:
- a threshold R squared value, a threshold number of standard deviations of data points from an expected value of a set of data points, and a threshold slope;
- and
- a memory coupled to the processor and configured to provide the processor with instructions.
9 more elements
A method for managing a storage system, comprising:
- receiving storage system information from a deduplicating storage system, wherein the deduplicating storage system:
- breaks each of at least a subset of files in an input data stream into a plurality of segments;
- determines, for each of at least a subset of the plurality of segments, whether the segment has been stored previously;
- and
- stores a segment in the event that the segment is determined to have not been previously stored, wherein at least a subset of stored segments is used to reconstruct more than one of the subset of files in the input data stream;
- determining a capacity forecast for the deduplicating storage system based at least in part on the storage system information, wherein the storage system information comprises a cumulative compressed size, wherein the cumulative compressed size comprises a physical used space after deduplicating;
- and
- providing the capacity forecast for the deduplicating storage system, wherein providing a capacity forecast is based at least in part on a capacity forecast model validation criteria, wherein the capacity forecast model validation criteria comprise one or more of:
- a threshold R squared value, a threshold number of standard deviations of data points from an expected value of a set of data points, and a threshold slope.
6 more elements
A computer program product for managing a storage system, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
- receiving storage system information from a deduplicating storage system, wherein the deduplicating storage system:
- breaks each of at least a subset of files in an input data stream into a plurality of segments;
- determines, for each of at least a subset of the plurality of segments, whether the segment has been stored previously;
- and
- stores a segment in the event that the segment is determined to have not been previously stored, wherein at least a subset of stored segments is used to reconstruct more than one of the subset of files in the input data stream;
- determining a capacity forecast for the deduplicating storage system based at least in part on the storage system information, wherein the storage system information comprises a cumulative compressed size, wherein the cumulative compressed size comprises a physical used space after deduplicating;
- and
- providing the capacity forecast for the deduplicating storage system, wherein providing a capacity forecast is based at least in part on a capacity forecast model validation criteria, wherein the capacity forecast model validation criteria comprise one or more of:
- a threshold R squared value, a threshold number of standard deviations of data points from an expected value of a set of data points, and a threshold slope.
6 more elements
Dependencies are inferred from the claim text.