摘要:
A storage network system that prevents waste of a core's resources and is thereby operated efficiently, and a method for controlling such a storage network system are provided.Policy differences between a core and a plurality of edges are buffered by enabling hierarchical control of data storage on the side of the plurality of edges in cooperation with hierarchical control of data storage on the core side, and the buffered policy is applied to the hierarchical control of the data storage on the core side.
摘要:
A storage network system that prevents waste of a core's resources and is thereby operated efficiently, and a method for controlling such a storage network system are provided.Policy differences between a core and a plurality of edges are buffered by enabling hierarchical control of data storage on the side of the plurality of edges in cooperation with hierarchical control of data storage on the core side, and the buffered policy is applied to the hierarchical control of the data storage on the core side.
摘要:
When receiving a file access from the client, the file access program refers to the mapping table, and processes an access to files of on volumes of RAID groups. The file server analyzes the file access states, and groups the files depending on the access time period, defines the file migration pattern based on the grouping, migrates the files, and then carries out a power management operation like a spin-down/-up operation on the RAID groups based on the migration pattern.
摘要:
A file management sub-system executes file migration without causing an unintended drop in the response time or the like. When a management computer issues a file migration direction, a file storage apparatus notifies client computer associated with a migration target file that file migration is scheduled. When postponement or suspension of file migration is requested by the client computer, the file migration is postponed or suspended.
摘要:
A storage system 1000 providing a storage area to an external device 1500 comprises a plurality of storage apparatuses 1100, 1200 and 1300 of different performance capabilities, and a storage controller 2600. The storage controller 2600 holds storage cost coefficients 3202 of the respective storage apparatuses 1100, 1200 and 1300, user cost allocation information 3302 for each user using the storage system 1000 from the external device 1500, and user cost distribution information 3402 that defines, for each user, proportions of an available space amount distributed to the storage apparatuses 1100, 1200 and 1300. The storage controller 2600 calculates an ideal utilization 3502 for each user, from the storage cost coefficients 3202 and the user cost distribution information 3402, and allocates, for each user, the ideal utilization 3502 to each of the storage apparatuses 1100, 1200 and 1300, in the order of the performance capabilities from highest to lowest.
摘要:
When any file sharing server among a plurality of file sharing servers configuring a virtual file system receives a backup requests from a backup server, the file sharing server that received the backup request searches a file sharing server managing the files to be backed up among the plurality of file sharing servers, and transfers the backup request to the searched file sharing server. The file sharing server that received the transfer of the backup request transfers the backup data to the media server via a connection server.
摘要:
Time required for a file server to determine files to be migrated from a first storage region to a second storage region is reduced. A file service system coupled to the storage system for providing a first storage region and a second storage region stores identifiers of files that have been accessed by a client, in accessed file identifier information and determines the files to be migrated from the first storage region to the second storage region based on metadata of the files stored in the first storage region and the accessed file identifier information.
摘要:
There is provided a file management method of a hierarchy management file system capable of preventing an access performance from dropping when a user accesses to a file. According to the method, a server creates file systems in high-speed and low-speed volumes and a file-sharing server virtually integrates those file systems into one system as a pseudo file system. Then, the server moves a file to be moved to the file system created in the low-speed volume in advance, not when an access is made to the file. When a user accesses to the file after that, the user directly accesses to destination without requiring to copy the file, so that the accessing performance may be prevented from dropping.
摘要:
A storage system 1000 providing a storage area to an external device 1500 comprises a plurality of storage apparatuses 1100, 1200 and 1300 of different performance capabilities, and a storage controller 2600. The storage controller 2600 holds storage cost coefficients 3202 of the respective storage apparatuses 1100, 1200 and 1300, user cost allocation information 3302 for each user using the storage system 1000 from the external device 1500, and user cost distribution information 3402 that defines, for each user, proportions of an available space amount distributed to the storage apparatuses 1100, 1200 and 1300. The storage controller 2600 calculates an ideal utilization 3502 for each user, from the storage cost coefficients 3202 and the user cost distribution information 3402, and allocates, for each user, the ideal utilization 3502 to each of the storage apparatuses 1100, 1200 and 1300, in the order of the performance capabilities from highest to lowest.
摘要:
A file management sub-system executes file migration without causing an unintended drop in the response time or the like. When a management computer issues a file migration direction, a file storage apparatus notifies client computer associated with a migration target file that file migration is scheduled. When postponement or suspension of file migration is requested by the client computer, the file migration is postponed or suspended.