| 摘要 |
The present invention provides a method and an apparatus for tiered storage processing of data, and a storage device. The method includes: when a migration unit of a lower-tier disk is migrated to a higher-tier disk, splitting the migration unit into multiple migration subunits, and detecting a data access frequency of each migration subunit respectively; migrating the migration subunit to the lower-tier disk when detecting that the data access frequency of the migration subunit is lower than a set threshold; and combining the multiple migration subunits into the migration unit when detecting that the multiple migration subunits are all migrated to the lower-tier disk. The present invention improves usage of storage media, and controls metadata storage resource consumption effectively. |
