Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

A storage tier management application indicates a heat index for each extent of a plurality of
extents, wherein a higher heat index indicates a greater frequency of usage of tracks of an …

US10671284B2 - Placement and movement of sub-units of a storage unit in a tiered storage
environment - Google Patents US10671284B2 - Placement and movement of sub-units of a …

US9880738B2 - Placement and movement of sub-units of a storage unit in a tiered storage
environment - Google Patents US9880738B2 - Placement and movement of sub-units of a …

Disclosed is a process for determining a heat index for a block of data, such as an extent, for
storage tiering. Weighted scores are used for read and write operations, since solid state …

(57) ABSTRACT A storage controller configures a plurality of storage tiers. A Sub-unit of a
storage unit is maintained in a selected Storage tier of the plurality of storage tiers, for at …