Lifetime management device and lifetime management method
First Claim
1. A lifetime management device configured to predict an end-of-life date and time of a first storage device connected to an equipment, the lifetime management device comprising:
- a memory and a processor, the memory containing computer readable code that, when executed by the processor, configures the processor to,calculate, each time data is written to the first storage device, a cumulative written amount, the cumulative written amount being a sum of amounts of data written to the first storage device,detect identification information and usage-start date and time, the identification information identifying the first storage device and the usage-start date and time being detected based on a time the first storage device was connected to the equipment,associate the cumulative written amount with the identification information of the first storage device and the usage-start date and time of the first storage device into a first associated set,record the first associated set in a second storage device, andpredict the end-of-life date and time of the first storage device based on the cumulative written amount and the usage-start date and time recorded in the second storage device.
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Accused Products
Abstract
A lifetime management device includes: a cumulative-written-amount calculation unit configured to, each time data is written to a first storage device, calculate a cumulative written amount, the cumulative written amount being a sum of amounts of data written to the first storage device; a first information recording unit configured to associate the cumulative written amount with identification information of the first storage device and usage-start date and time of the first storage device into an associated set and record the associated set in a second storage device; and an end-of-life prediction unit configured to predict end-of-life date and time of the first storage device based on the cumulative written amount and the usage-start date and time recorded in the second storage device.
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Citations
20 Claims
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1. A lifetime management device configured to predict an end-of-life date and time of a first storage device connected to an equipment, the lifetime management device comprising:
a memory and a processor, the memory containing computer readable code that, when executed by the processor, configures the processor to, calculate, each time data is written to the first storage device, a cumulative written amount, the cumulative written amount being a sum of amounts of data written to the first storage device, detect identification information and usage-start date and time, the identification information identifying the first storage device and the usage-start date and time being detected based on a time the first storage device was connected to the equipment, associate the cumulative written amount with the identification information of the first storage device and the usage-start date and time of the first storage device into a first associated set, record the first associated set in a second storage device, and predict the end-of-life date and time of the first storage device based on the cumulative written amount and the usage-start date and time recorded in the second storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A lifetime management method of predicting an end-of-life date and time of a first storage device connected to an equipment, the method comprising:
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calculating, each time data is written to the first storage device, a cumulative written amount, the cumulative written amount being a sum of amounts of data written to the first storage device; detecting identification information and usage-start date and time, the identification information identifying the first storage device and the usage-start date and time being detected based on a time the first storage device was connected to the equipment; associating the cumulative written amount with the identification information of the first storage device and the usage-start date and time of the first storage device into a first associated set; recording the first associated set in a second storage device; and predicting the end-of-life date and time of the first storage device based on the cumulative written amount and the usage-start date and time recorded in the second storage device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A lifetime management device comprising:
a memory and a processor, the memory containing computer readable code that, when executed by the processor, configures the processor to, calculate, each time data is written to a first storage device, a cumulative written amount, the cumulative written amount being a sum of amounts of data written to the first storage device, associate the cumulative written amount with identification information of the first storage device and usage-start date and time of the first storage device into a first associated set, record the first associated set in a second storage device, associate per-cluster write counts managed on a file system, the file system being provided for the first storage device, with the usage-start date and time of the first storage device into a second associated set, record the second associated set in a third storage device, mark clusters whose write count recorded in the third storage device has reached a set count as bad clusters, inhibit writing of data to the first storage device where a number of the bad clusters has exceeded a threshold number, and predict end-of-life date and time of the first storage device based on one or more of (i) the cumulative written amount and the usage-start date and time recorded in the second storage device and (ii) a sum total of the per-cluster write counts and the usage-start date and time recorded in the second storage device.
Specification