With the rapid increase in the amount of data produced and the development of new types of
storage devices, storage tiering continues to be a popular way to achieve a good tradeoff …

Various embodiments for improving data storage and retrieval performance, for a tiered
storage environment having levels corresponding to storage performance, are provided. In …

BACKGROUND Data tiering is a hierarchical storage management tech nique wherein data
is moved between high-cost/high-perfor mance storage to low-cost/low performance storage …

(57) ABSTRACT A method for improving data storage and retrieval perfor mance,
comprising, for a tiered storage environment having levels corresponding to storage …

Various embodiments for improving data storage and retrieval performance, for a tiered
storage environment having levels corresponding to storage performance, are provided. In …

For a cache in which a plurality of frequently accessed data segments are temporarily
stored, reference count information of the plurality of data segments, in conjunction with least …

Various embodiments for improving hash index key lookup caching performance in a
computing environment are pro vided. In one embodiment, for a cached fingerprint map hav …

Many multi-tiered/multi-system computing environments implement data deduplication
technologies to improve Stor age performance by reducing the amount of duplicated Stor …

(57) ABSTRACT A method, apparatus, and system for policy driven data placement and
information lifecycle management in a data base management system are provided. A user …

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 …