Dynamic use of RAID levels responsive to predicted failure of a data storage device
AssigneeLenovo Enterprise Solutions (Singapore) Pte. Ltd.
InventorsMichael H. Nolterieke, William G. Pagan, Devon D. Snyder
Life of this patent
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Abstract
Data associated with a workload is stored in a first composite array of data storage devices, and is automatically stored in a second composite array in response to predicting failure of one of the data storage devices in the first composite array. The data may be stored in the second composite array by either converting the first composite array or migrating the data to the second composite array. One of the data storage devices may predict its own failure and issue a predictive failure alert.
Claims12
A method comprising:
- storing data associated with a workload in a first composite array of data storage devices configured as a redundant array of inexpensive disks configured at a first level;
- and
- automatically storing the data associated with the workload in a second composite array of data storage devices in response to predicting failure of one of the data storage devices in the first composite array, wherein the second composite array is a redundant array of inexpensive disks configured at a second level that is different than the first level, wherein storing the data associated with the workload in a second composite array of data storage devices in response to predicting failure of one of the data storage devices, includes converting the first composite array into the second composite array, and wherein the second composite array has a higher resilience than the first composite array.
A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform a method, the method comprising:
- storing data associated with a workload in a first composite array of data storage devices;
- and
- automatically storing the data associated with the workload in a second composite array of data storage devices in response to predicting failure of one of the data storage devices in the first composite array, wherein the first composite array is a redundant array of inexpensive disks configured at a first level and the second composite array is a redundant array of inexpensive disks configured at a second level, wherein storing the data associated with the workload in a second composite array of data storage devices in response to predicting failure of one of the data storage devices, includes converting the first composite array into the second composite array, and wherein the second composite array has a higher resilience than the first composite array.
Dependencies are inferred from the claim text.