Storage System, Storage Node, and Data Storage Method

A storage node comprising:

• a hard disk;
• and
• a network interface card coupled to the hard disk and configured to:
• receive a first write instruction comprising a log of data and a first access address of a first storage object allocated to the log;
• and
• forward the log and the first access address to the hard disk, wherein the first access address is located on the hard disk,
• wherein the hard disk is configured to write, based on the first access address, the log into a first storage space corresponding to the first storage object.

A method in a storage system, wherein the method comprises:

• sending, by a client of the storage system, a data write request comprising first data related to an application;
• and
• sending, by the client, a first write instruction comprising a log of the first data and a first access address of a first storage object allocated to the log;
• receiving, by a computing node of the storage system, the data write request from the client;
• writing, by the computing node, the first data into a memory of the computing node;
• receiving, by a storage node of the storage system, a first write instruction from the client;
• forwarding, by the storage node, the log and the first access address to a hard disk of the storage node;
• and
• writing, by the hard disk based on the first access address, the log into a first storage space corresponding to the first access address.