Storage control system with write amplification control mechanism and method of operation thereof
First Claim
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1. A method of operation in a non-volatile storage device, comprising:
- assigning, to each subdrive of respective subdrives of the non-volatile storage device, respective logical addresses of a logical address space in accordance with a quantity of host writes to each of the respective logical addresses;
assigning to each subdrive of the respective subdrives a portion of a total over-provisioning capacity of the non-volatile storage device in accordance with a write workload of the subdrive, wherein the write workload of the subdrive is in accordance with a quantity of host writes to the subdrive; and
monitoring the quantity of host writes to each of the respective subdrives.
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Abstract
A method of operation of a storage control system includes: partitioning logical addresses into a number of subdrives, the logical addresses associated with a memory device; and monitoring a data write measure of one of the subdrives.
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Citations
20 Claims
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1. A method of operation in a non-volatile storage device, comprising:
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assigning, to each subdrive of respective subdrives of the non-volatile storage device, respective logical addresses of a logical address space in accordance with a quantity of host writes to each of the respective logical addresses; assigning to each subdrive of the respective subdrives a portion of a total over-provisioning capacity of the non-volatile storage device in accordance with a write workload of the subdrive, wherein the write workload of the subdrive is in accordance with a quantity of host writes to the subdrive; and monitoring the quantity of host writes to each of the respective subdrives. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operation of a storage control system comprising:
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assigning, to each subdrive of a set of respective subdrives of a non-volatile storage device, respective logical addresses of a logical address space; monitoring a data write measure of one of the subdrives; and identifying a recommended subdrive based on the data write measure. - View Dependent Claims (9, 10, 11, 12)
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13. A non-volatile storage device, comprising:
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a subdrive assignment module for assigning respective logical addresses of a logical address space to each subdrive of respective subdrives of the non-volatile storage device in accordance with a quantity of host writes to each of the respective logical addresses; a data monitor module, coupled to the subdrive assignment module, for monitoring the quantity of host writes to each of the respective subdrives; and an over-provisioning manager module, coupled to the data monitor module, for identifying a subdrive to recommend for garbage collection in accordance with a write workload of each subdrive of the respective subdrives. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification