Spatial extent migration for tiered storage architecture
View Patent ↗Provided are techniques for migrating a first extent, determining a spatial distance between the first extent and a second extent, determining a ratio of a profiling score of the second extent to the spatial distance, and, in response to determining that the ratio exceeds a threshold, migrating the second extent.
1. A method, comprising:
migrating, using a computer including a processor, a first extent;
determining a spatial distance between the first extent and a second extent;
determining a ratio of a profiling score of the second extent to the spatial distance;
in response to determining that the ratio exceeds a threshold, migrating the second extent.
2. The method of claim 1 , further comprising:
dynamically migrating the first extent from a first storage tier to a second storage tier based on a profiling score of the first extent.
3. The method of claim 1 , further comprising:
migrating the first extent and the second extent to different storage tiers.
4. The method of claim 1 , further comprising:
migrating the first extent and the second extent to a same storage tier.
5. The method of claim 1 , further comprising:
identifying a list of extents that reside on a same volume as the first extent; and
determining whether each of the extents on the list should be migrated.
6. The method of claim 1 , further comprising:
in response to determining that the ratio does not exceed the threshold, not migrating the second extent.
7. A system, comprising:
a processor; and
storage coupled to the processor, wherein the storage stores a computer program, and wherein the processor is configured to execute the computer program to perform operations, the operations comprising:
migrating a first extent;
determining a spatial distance between the first extent and a second extent;
determining a ratio of a profiling score of the second extent to the spatial distance;
in response to determining that the ratio exceeds a threshold, migrating the second extent.
8. The system of claim 7 , wherein the operations further comprise:
dynamically migrating the first extent from a first storage tier to a second storage tier based on a profiling score of the first extent.
9. The system of claim 7 , wherein the operations further comprise:
migrating the first extent and the second extent to different storage tiers.
10. The system of claim 7 , wherein the operations further comprise:
migrating the first extent and the second extent to a same storage tier.
11. The system of claim 7 , wherein the operations further comprise:
identifying a list of extents that reside on a same volume as the first extent; and
determining whether each of the extents on the list should be migrated.
12. The system of claim 7 , wherein the operations further comprise:
in response to determining that the ratio does not exceed the threshold, not migrating the second extent.
13. A computer program product comprising a non-transitory computer readable storage medium including a computer readable program, wherein the computer readable program when executed by a processor on a computer causes the computer to perform:
migrating a first extent;
determining a spatial distance between the first extent and a second extent;
determining a ratio of a profiling score of the second extent to the spatial distance;
in response to determining that the ratio exceeds a threshold, migrating the second extent.
14. The computer program product of claim 13 , wherein the computer readable program when executed by the processor on the computer causes the computer to perform:
dynamically migrating the first extent from a first storage tier to a second storage tier based on a profiling score of the first extent.
15. The computer program product of claim 13 , wherein the computer readable program when executed by the processor on the computer causes the computer to perform:
migrating the first extent and the second extent to different storage tiers.
16. The computer program product of claim 13 , wherein the computer readable program when executed by the processor on the computer causes the computer to perform:
migrating the first extent and the second extent to a same storage tier.
17. The computer program product of claim 13 , wherein the computer readable program when executed by the processor on the computer causes the computer to perform:
identifying a list of extents that reside on a same volume as the first extent; and
determining whether each of the extents on the list should be migrated.
18. The computer program product of claim 13 , wherein the computer readable program when executed by the processor on the computer causes the computer to perform:
in response to determining that the ratio does not exceed the threshold, not migrating the second extent.