STORING DATA IN SLICES OF DIFFERENT SIZES WITHIN DIFFERENT STORAGE TIERS

摘要

A technique manages data in slices of difference sizes within different storage tiers. The technique involves, based on access activity for first data currently residing within a first slice having a first size, selecting a target set of storage devices within which to store the first data from among multiple sets of storage devices. The technique further involves moving the first data from the first slice having the first size to a second slice having a second size that is different from the first size. The technique further involves, after the first data is moved from the first slice to the second slice, storing the second slice in the target set of storage devices.