Data management method and related device

A computing device cluster, comprising at least one computing device, wherein each computing device comprises at least one processor and at least one memory, wherein coupled to the at least one processor and storing programming instructions, which when executed by the at least one processor enables the computing device cluster to:

• receive, by the client, a backup plan configured by a user for to-be-backed-up data, wherein the backup plan comprises a quantity n of cloud nodes used for backup on the multi-cloud platforms and a quantity b of backup copies;
• divide, by the client, the to-be-backed-up data into c data blocks based on the quantity of cloud nodes used for backup and the quantity of backup copies, and storing the c data blocks in n cloud nodes on the multi-cloud platforms in a distributed manner, wherein for at least one data block in the c data blocks, the multi-cloud platforms store b backup copies of the at least one data block;
• and
• provide, by the client for the blockchain network, metadata of the data stored on the multi-cloud platforms, such that the blockchain network encodes the metadata into a backup identifier, and stores the backup identifier, wherein the backup identifier is used to address the data stored on the multi-cloud platforms.

A computer-readable storage medium, wherein the computer-readable storage medium comprises computer program instructions, and when the computer program instructions are for execution by at least one processor to perform operations comprising:

• receiving, by the client, a backup plan configured by a user for to-be-backed-up data, wherein the backup plan comprises a quantity n of cloud nodes used for backup on the multi-cloud platforms and a quantity b of backup copies;
• dividing, by the client, the to-be-backed-up data into c data blocks based on the quantity of cloud nodes used for backup and the quantity of backup copies, and storing the c data blocks in n cloud nodes on the multi-cloud platforms in a distributed manner, wherein for at least one data block in the c data blocks, the multi-cloud platforms store b backup copies of the at least one data block;
• and
• providing, by the client for the blockchain network, metadata of the data stored on the multi-cloud platforms, such that the blockchain network encodes the metadata into a backup identifier, and stores the backup identifier, wherein the backup identifier is used to address the data stored on the multi-cloud platforms.