System and method for rating reliability of storage devices
First Claim
1. A computer-implemented method for rating reliability of storage devices, the method comprising:
- assigning a reliability rating for a first group of storage devices to a first rating, wherein the first group of storage devices includes a first storage device and one or more other storage devices, wherein the first rating indicates an expected reliability that is the same for each individual one of the storage devices in the first group;
receiving first information indicating one or more operational characteristics for one or more of the storage devices in the first group; and
in response to said receiving, changing the reliability rating for the first group of storage devices to a second rating different from the first rating, wherein the second rating indicates an expected reliability that is the same for each individual one of the storage devices in the first group;
wherein said changing the reliability rating for the first group of storage devices to the second rating indicates that the expected reliability for all storage devices in the first group, including the first storage device, has changed, even though the one or more operational characteristics prompting the change to the reliability rating do not apply to the first storage device.
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Abstract
A method for rating reliability of storage devices is disclosed. A reliability rating for a group of storage devices is assigned to a first rating. The first rating indicates an expected reliability that is the same for each individual one of the storage devices in the group. The expected reliability provides an indication of how reliable the storage devices in the group are expected to be. Information indicating one or more operational characteristics for one or more of the storage devices in the group may be periodically received and analyzed to determine whether the reliability rating for the group of storage devices should be changed. If so then the reliability rating for the group is changed to a different rating, e.g., to indicate either a decrease or an increase in the expected reliability of the storage devices in the group.
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Citations
20 Claims
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1. A computer-implemented method for rating reliability of storage devices, the method comprising:
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assigning a reliability rating for a first group of storage devices to a first rating, wherein the first group of storage devices includes a first storage device and one or more other storage devices, wherein the first rating indicates an expected reliability that is the same for each individual one of the storage devices in the first group; receiving first information indicating one or more operational characteristics for one or more of the storage devices in the first group; and in response to said receiving, changing the reliability rating for the first group of storage devices to a second rating different from the first rating, wherein the second rating indicates an expected reliability that is the same for each individual one of the storage devices in the first group; wherein said changing the reliability rating for the first group of storage devices to the second rating indicates that the expected reliability for all storage devices in the first group, including the first storage device, has changed, even though the one or more operational characteristics prompting the change to the reliability rating do not apply to the first storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A data storage system comprising:
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at least one processor; and a first storage device and one or more other storage devices; wherein the at least one processor is operable to execute program instructions in order to; assign a reliability rating for a first group of the storage devices to a first rating, wherein the first group includes the first storage device and the one or more other storage devices, wherein the first rating indicates an expected reliability for each of the storage devices in the first group; receive first information indicating one or more operational characteristics for one or more of the storage devices in the first group; and change the reliability rating for the first group of storage devices to a second rating based on the first information, wherein changing the reliability rating for the first group indicates that the expected reliability for each of the storage devices in the first group has changed; wherein the change to the reliability rating for the first group of storage devices to the second rating indicates that the expected reliability for all storage devices in the first group, including the first storage device, has changed, even though the one or more operational characteristics prompting the change to the reliability rating do not apply to the first storage device. - View Dependent Claims (16, 17, 18, 19)
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20. A computer-implemented method for rating reliability of computing devices, the method comprising:
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assigning a reliability rating for a first group of computing devices to a first rating, wherein the first group of computing devices includes a first computing device and one or more other computing devices wherein the first rating indicates an expected reliability that is the same for each individual one of the computing devices in the first group; receiving first information indicating one or more operational characteristics for one or more of the computing devices in the first group; and in response to said receiving, changing the reliability rating for the first group of computing devices to a second rating different from the first rating, wherein the second rating indicates an expected reliability that is the same for each individual one of the computing devices in the first group; wherein said changing the reliability rating for the first group of computing devices to the second rating indicates that the expected reliability for all computing devices in the first group, including the first computing device, has changed, even though the one or more operational characteristics prompting the change to the reliability rating do not apply to the first computing device.
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Specification