Patent ID: 9715353
Date: 2017-07-25
CPC Classifications: G06F

Claim:
1. A computer program product for managing storage of data sets from an application in hierarchical storage tiers of storage devices in a storage system, wherein each hierarchical storage tier of storage devices has storage devices with different storage attributes, the computer program product comprising a computer readable storage medium having computer readable program code embodied therein that executes to perform operations, the operations comprising: hierarchical migration processing data sets including migrating data sets from one hierarchical storage tier to another hierarchical storage tier; and prior to copying a first data set stored in a first storage tier for storage in a second hierarchical storage tier so that the first data set has not yet been copied for storage in the second hierarchical storage tier: in response to a determination that the first data set of the deletion request is eligible for deletion-migration processing, deletion-migration processing the deletion request, the deletion-migration processing including using the hierarchical migration processing to: in response to a determination that the first data set of the deletion request is not eligible for deletion-migration processing, deleting the first data set from the first hierarchical storage tier without copying the first data set to the second hierarchical storage tier.