Title:
DATA MIGRATION METHOD AND APPARATUS, AND STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/038186
Kind Code:
A1
Abstract:
Provided are a data migration method and apparatus and a storage device. First data is stored in a first storage address, a first virtual address is recorded in metadata of the first data, and there is a first mapping relationship between the first storage address and the first virtual address. The method comprises: the storage device migrating the first data from the first storage address to a second storage address; and the storage device adjusting the first mapping relationship to a second mapping relationship, wherein the second mapping relationship is a correlation between the second storage address and the first virtual address. According to the method, after the first data is migrated, a storage address in the metadata of the first data does not need to be modified, thereby greatly improving the metadata management efficiency.
Inventors:
JIA SHENGQIAN (CN)
Application Number:
PCT/CN2019/098061
Publication Date:
February 27, 2020
Filing Date:
July 27, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F3/06
Foreign References:
| CN109324758A | 2019-02-12 | |||
| CN108021336A | 2018-05-11 | |||
| CN107678981A | 2018-02-09 | |||
| US9727485B1 | 2017-08-08 |
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