Heat indices for file systems and block storage

摘要

Techniques and mechanisms are provided to allow for selective optimization, including deduplication and/or compression, of portions of files and data blocks. Data access is monitored to generate a heat index for identifying sections of files and volumes that are frequently and infrequently accessed. These frequently used portions may be left non-optimized to reduce or eliminate optimization I/O overhead. Infrequently accessed portions can be more aggressively optimized.

主权项

1. A method, comprising:
determining whether a first portion of a first file is less frequently accessed than a second portion of the first file; based on a determination that the first portion of the first file is less frequently accessed than the second portion of the first file, performing optimization on the first portion of the first file more aggressively to achieve a higher reduction ratio on the first portion of the first file than on the second portion of the first file, wherein optimization comprises deduplication of data in the first file.