Multi-service application orientated cloud storage data distribution method

The invention discloses a multi-service application orientated cloud storage data distribution method which comprises the following steps: I/O (Input/Output) characteristics of various services operated on the cloud storage are analyzed, and the service classification is carried out; different application APIs (Application Program Interface) are established according to the I/O characteristics of different services, wherein the application API is the I/O characteristics based on various services; application-based file opening, reading, writing and closing interfaces are provided; a query data layout sheet is made according to service classification results; when a data operation request is transmitted from a client, the I/O characteristic analysis and classification are carried out according to the service of the operation request, and subsequently different application APIs are called according to the I/O characteristics of different services; and the operation request accesses to storage nodes of the service data through corresponding application APIs according to the query data layout sheet. Aiming at the problem that the applications on a cloud storage system are influenced by each other and according to the I/O characteristics of different applications, different data distribution strategies are made, the stable operation of the applications is ensured, and the system performance is maximized.