Patent attributes
The storage system includes a file server connected to a host apparatus and configured to provide a directory in a file system having a directory structure to the host apparatus, a storage subsystem connected to the file server and configured to provide a volume for storing the file system, and a management apparatus connected respectively to the file server and the storage subsystem and configured to manage backup/restoration of an arbitrary directory contained in the file system. The storage system selects one of backup methods of a directory designated as a backup target by the management apparatus, and executes backup processing to the designated directory. The storage system also includes a restoration controller configured to control execution of restoration processing to backup data based on the backup processing.