Quantum Corporation
Adaptive pre-fetch

Abstract:

Adaptive pre-fetching devices can predict data placement to improve the operating and/or electrical efficiency of a data storage system. A future input/output operation can be predicted from a current input/output operation, the state of the data storage apparatus, relationships between data currently being processed and data previously processed, or other factors. The apparatus and methods can improve data storage efficiency by selectively pre-fetching data, relocating data on the data storage apparatus, the backing storage, or within a plurality of data storage apparatus based on working set predictors to reduce cache misses or outperform fetch processes from the backing storage.