Promotion of partial data segments in flash cache

摘要

For efficient track destage in secondary storage in a more effective manner, for temporal bits employed with sequential bits for controlling the timing for destaging the track in a primary storage, if a first bit has at least one of a lower amount of holes and a hotter data heat metric, it is moved to the lower speed cache level. If the first bit has a hotter data heat and greater than a predetermined number of holes, the first bit is discarded.

主权项

1. A method for promoting partial data segments in a computing storage environment having lower and higher speed levels of cache by a processor, comprising:
configuring a data moving mechanism adapted for performing:
a first of the partial data segments having at least one of a lower amount of holes and a hotter data heat metric is moved to the lower speed cache level; andif the first of the partial data segments has a hotter data heat metric and greater than a predetermined number of holes, the first of the partial data segments is discarded.