Memory space management method and memory management device

Abstract

An embodiment of the invention provides a memory space management method and a memory management device. The memory space management method comprises the steps of confirming first balance memory spaces in multiple memory spaces, wherein the first balance memory spaces are memory spaces required to be subjected to balance processing; obtaining an access state of at least one logic block CK in the first balance memory spaces, wherein the CK is a CK to be migrated in the first balance memory spaces; performing migration processing to at least one CK in the first balance memory spaces according to the access state of at least one CK in the first balance memory spaces. By adopting the memory space management method and the memory management device, data migration is performed on the first balance memory spaces according to the access state of the CK in the first balance memory spaces, accordingly the data migration expenditure can be saved to some degree, and the balancing efficiency can be accelerated.

Description

technical field [0001] Embodiments of the present invention relate to the field of data storage, and more specifically, to a storage space management method and a storage management device. Background technique [0002] The current equalization strategy is to migrate data blocks between hard disks, that is, to re-arrange data. The general trend of this kind of data migration is to migrate data from disks with higher utilization of hard disk space to disks with lower disk space utilization. During this process, some hard disk data has not been accessed by users. As a result, the efficiency of equalization is low, as long as the data blocks in the allocated logical block CK will participate in the equalization, affecting the overall equalization progress. Contents of the invention [0003] Embodiments of the present invention provide a storage space management method and a storage management device, which can save data migration overhead to a certain extent and speed up equ...

AI Technical Summary

Problems solved by technology

The general trend of this kind of data migration is to migrate data from disks with higher utilization of hard disk space to disks with lower disk space utilization. During this process, some hard disk data has not been accessed by users. The efficiency of the balance is low, as long as the data blocks in the allocated logical block CK will participate in the balance, affecting the overall balance progress

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