Techniques for storage capacity configuration
First Claim
1. A method of reconfiguring a storage device comprising:
- receiving a first plurality of parameters characterizing said storage device at a first point in time, said first plurality of parameters including a first raw capacity, and a first published capacity, wherein said first raw capacity represents a physical storage capacity of the storage device at the first point in time and said first published capacity represents a logical storage capacity of an amount of user-consumable storage of said storage device at said first point in time; and
determining a second plurality of parameters characterizing said storage device at a second point in time subsequent to said first point in time to account for physical media portions of said storage device that have failed since said first point in time, said second plurality of parameters including a second raw capacity and a second published capacity, wherein said second raw capacity represents a physical storage capacity of the storage device at the second point in time and said second published capacity represents a logical storage capacity of an amount of user-consumable storage of the storage device at said second point in time, wherein said second raw capacity represents a portion of the storage device capable of storing data at said second point in time, said second raw capacity being less than said first raw capacity due to physical media portions of the storage device experiencing failure since the first point time, said second published capacity being less than said first published capacity, wherein said determining said second plurality of parameters comprises;
determining a first intermediate published capacity in accordance with first factors including T representing an expected lifetime for the storage device;
determining a second intermediate published capacity in accordance with second factors including an overprovisioning factor and the second raw capacity; and
performing other processing that determines the second published capacity using a selected one of the first intermediate published capacity and the second intermediate published capacity.
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Accused Products
Abstract
Described are techniques for reconfiguring a storage device. A first plurality of parameters characterizing the storage device at a first point in time are received. The first plurality of parameters includes a first raw capacity and a first published capacity. The first raw capacity represents a physical storage capacity of the storage device. The first published capacity represents a logical storage capacity of the storage device. A second plurality of parameters is determined characterizing the storage device at a subsequent second point in time. The second plurality of parameters includes a second raw capacity and a second published capacity, The storage device is used at the first point in time as a device having the first plurality of parameters and at the second point in time as a device having the second plurality of parameters.
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Citations
22 Claims
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1. A method of reconfiguring a storage device comprising:
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receiving a first plurality of parameters characterizing said storage device at a first point in time, said first plurality of parameters including a first raw capacity, and a first published capacity, wherein said first raw capacity represents a physical storage capacity of the storage device at the first point in time and said first published capacity represents a logical storage capacity of an amount of user-consumable storage of said storage device at said first point in time; and determining a second plurality of parameters characterizing said storage device at a second point in time subsequent to said first point in time to account for physical media portions of said storage device that have failed since said first point in time, said second plurality of parameters including a second raw capacity and a second published capacity, wherein said second raw capacity represents a physical storage capacity of the storage device at the second point in time and said second published capacity represents a logical storage capacity of an amount of user-consumable storage of the storage device at said second point in time, wherein said second raw capacity represents a portion of the storage device capable of storing data at said second point in time, said second raw capacity being less than said first raw capacity due to physical media portions of the storage device experiencing failure since the first point time, said second published capacity being less than said first published capacity, wherein said determining said second plurality of parameters comprises; determining a first intermediate published capacity in accordance with first factors including T representing an expected lifetime for the storage device; determining a second intermediate published capacity in accordance with second factors including an overprovisioning factor and the second raw capacity; and performing other processing that determines the second published capacity using a selected one of the first intermediate published capacity and the second intermediate published capacity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A non-transitory computer readable medium comprising code stored thereon for reconfiguring a storage device, the non-transitory computer readable medium comprising code stored thereon that, when executed, performs a method comprising:
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receiving a first plurality of parameters characterizing said storage device at a first point in time, said first plurality of parameters including a first raw capacity, and a first published capacity, wherein said first raw capacity represents a physical storage capacity of the storage device at the first point in time and said first published capacity represents a logical storage capacity of an amount of user-consumable storage of said storage device at said first point in time; and determining a second plurality of parameters characterizing said storage device at a second point in time subsequent to said first point in time to account for physical media portions of said storage device that have failed since said first point in time, said second plurality of parameters including a second raw capacity and a second published capacity, wherein said second raw capacity represents a physical storage capacity of the storage device at the second point in time and said second published capacity represents a logical storage capacity of an amount of user-consumable storage of the storage device at said second point in time, wherein said second raw capacity represents a portion of the storage device capable of storing data at said second point in time, said second raw capacity being less than said first raw capacity due to physical media portions of the storage device experiencing failure since the first point time, said second published capacity being less than said first published capacity, wherein said determining said second plurality of parameters comprises; determining a first intermediate published capacity in accordance with first factors including T representing an expected lifetime for the storage device; determining a second intermediate published capacity in accordance with second factors including an overprovisioning factor and the second raw capacity; and performing other processing that determines the second published capacity using a selected one of the first intermediate published capacity and the second intermediate published capacity. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification