Data Storage Method and Apparatus

A data storage apparatus, comprising

• a transceiver configured to receive a data write request from a first tenant via a client, wherein the data write request indicates that the first tenant requests storing N duplicates of to-be-written data, and wherein N is an integer greater than or equal to one;
• a processor coupled to the transceiver;
• and
• a memory coupled to the processor and the transceiver and configured to store instructions that, when executed by the processor, cause the processor to be configured to:
• determine, from a plurality of resource zones (RZs), at least one RZ available to the first tenant, wherein at least one of the RZs is based on the data write request and storage permission of the first tenant;
• determine distribution of the N duplicates in at least one of the RZs, wherein the distribution is based on the data write request and a first data distribution policy, wherein the first data distribution policy indicates a first distribution priority of the N duplicates in at least one of the RZs;
• and
• store the N duplicates into a first node corresponding to at least one of the RZs based on distribution of the N duplicates in at least one of the RZs and a second data distribution policy, wherein the second data distribution policy indicates a second distribution priority of the N duplicates at a plurality of nodes that correspond to each of at least one of the RZs.

A computer program product comprising computer-executable instructions stored on a non-transitory computer-readable medium that, when executed by a processor, cause a data storage apparatus to:

• receive a data write request from a first tenant via a client, wherein the data write request indicates that the first tenant requests to store N duplicates of to-be-written data, wherein N is an integer greater than or equal to one;
• determine, from a plurality of resource zones (RZs), at least one RZ available to the first tenant, wherein at least one of the RZs is based on the data write request and storage permission of the first tenant;
• determine distribution of the N duplicates in at least one of the RZs based on the data write request and a first data distribution policy, wherein the first data distribution policy indicates a first distribution priority of the N duplicates in at least one of the RZs;
• and
• store the N duplicates into a first node that corresponds to at least one of the RZs based on distribution of the N duplicates in at least one of the RZs and a second data distribution policy, wherein the second data distribution policy indicates a second distribution priority of the N duplicates at a plurality of nodes that correspond to each of at least one of the RZs.