VIRTUAL FILE SYSTEM INTEGRATING MULTIPLE CLOUD STORAGE SERVICES

摘要

Disclosed is a virtual file system integrating multiple cloud storage services. The virtual file system comprise: an API database which stores information on open API of cloud storages; a storage state database which stores state information of the cloud storages; a metadata database which stores metadata of the cloud storages; a cloud storage allocation unit which receives a user request and selects a cloud storage appropriate for the user request by referring to the storage state database and the metadata database; and an API mapping unit which reads, from the API database, open API information of the cloud storage selected by the cloud storage allocation unit, converts the user request to an open API of the selected cloud storage, and transfers the converted open API to the selected cloud storage.