Patent application number | Description | Published |
20080209025 | STORAGE SYSTEM, INFORMATION PROCESSING APPARATUS, AND CONNECTION METHOD - The storage system in the present invention includes: plural control units for controlling data sending/reception independently for each network; a management unit provided between a management computer and the control units, for managing the control units based on a command sent from the management computer; a virtual communication channel creation unit for creating a virtual communication channel between the management unit and the control units; a virtual communication channel connection unit for separately connecting the management unit and each control unit to the virtual communication channel created by the virtual communication channel creation unit; and a sending unit for sending, to each control unit, a command sent from the management computer via the virtual communication channel connected by the virtual communication channel connection unit. | 08-28-2008 |
20080244055 | Computer that manages devices - A computer is provided with: a device related value acquisition unit that acquires a device related value (for example a LUN), which is a value relating to a device; a calculation formula including a first variable in which the device related value is substituted; a device identification value calculation unit that calculates a device identification value of a device corresponding to the acquired device related value by substituting this device related value in the first variable; and a correspondence registration unit that registers the calculated device identification value and the acquired device related value in an electronic information resource. | 10-02-2008 |
20090094246 | FILE SYSTEM ACCESS CONTROL APPARATUS, FILE SYSTEM ACCESS CONTROL METHOD AND RECORDING MEDIUM INCLUDING FILE SYSTEM ACCESS CONTROL PROGRAM - A file system access control which carries WORM commitment for files in a single transaction is provided. The file system access control apparatus includes command files that support WORM commitment, interprets WORM commitment command which is registered in command files by means of a daemon process module and executes WORM commitment in a file. A plurality of files and those under management of directories are changed of the file access modes to meet WORM. In addition, a system that allows WRITE command for the command files by means of a standard interface of the file system. The results of WORM commitment is registered in the repository files under the system regarding the present invention. | 04-09-2009 |
20090144290 | NETWORK STORAGE SYSTEM WITH A CLUSTERED CONFIGURATION SHARING A NAMESPACE, AND CONTROL METHOD THEREFOR - Provided is a storage system as follows. A server holds a management table that serves to manage a mount point of a file system. The management table stores a file system identifier that uniquely identifies the file system within the storage system, mount point information that indicates the mount point of the file system, and a management server identifier that indicates an identifier of the server that manages the file system. The contents stored in the management table of each server are the same. Upon reception of a request to obtain a file handle, each server returns the file handle requested to be obtained. The file handle indicates, uniquely within the storage system, the storage area on the disk subsystem in which the file relating to the request is stored. | 06-04-2009 |
20090150628 | Backup apparatus, backup method, and file reading apparatus - Proposed are a backup apparatus and a backup method capable of improving the backup performance, as well as a file reading apparatus capable of improving the file reading performance. As a result of determining a read sequence upon reading the respective files from a disk device based on a physical address of the respective storage areas storing data of each of the files in the disk device, and sequentially reading data of each of the files from the disk device according to the determined read sequence, overhead such as the head seek and rotational delay in the disk device upon reading a plurality of files from such disk device can be dramatically reduced. | 06-11-2009 |
20090190590 | Server Machine and Network Processing Method - An object of the present invention is to provide a server machine and network processing method capable of running a plurality of same server applications at a time on a single OS in a single sever machine. | 07-30-2009 |
20090193272 | Storage system and power consumption reduction method for the same - In a storage system that includes two or more file servers each including an arbitrary number of operating virtual file servers, a management server: holds a load information table regarding a load on each virtual file server for each time period and redundancy information table for the storage system; judges, with reference to the load information table and redundancy information table, whether or not the loads on the virtual file servers can be handled by a smaller number of file servers than the number of currently-operating file servers; selects, if the judgment result is positive, a power-off target file server and makes another file server fail over a virtual file server in the power-off target file server; and turns off the power-off target file server. | 07-30-2009 |
20090216980 | INFORMATION STORAGE SYSTEM - A storage media and a storage area of a storage apparatus are associated, and the storage media is used to manage the contents of the storage apparatus. A storage media for storing files is detachably mounted on an information processing apparatus, the information processing apparatus is connected to a storage apparatus via the Internet, the storage apparatus stores files corresponding to the files stored in the storage media, the storage media and the storage apparatus authenticate each other via the Internet, and the information processing apparatus reads files from or writes files into the storage media or the storage apparatus on the condition that the foregoing authentication is successful. | 08-27-2009 |
20090240899 | Storage device and method of controlling same - A storage device having a volume for storing data sent from a host computer and transferring the data stored in the volume to a sub storage device via a network, comprises: a retrieval unit for retrieving a snapshot retaining change data generated in the volume during a time period between a given time and another given time, and a maximum transfer size of the network between the storage device and the sub storage device; and a control unit for controlling so as to store data exceeding a maximum transfer size in the area of another snapshot, when the size of a created snapshot exceeds the maximum transfer size. | 09-24-2009 |
20100030959 | SNAPSHOT SYSTEM - A storage system including: a disk device including an original volume and a plurality of snapshot generations; and a storage control unit which includes a processor unit. The processor unit receives write data to a storage area of the original volume, and determines whether data stored in the storage area of the original volume is already copied to the snapshot volume or not; if the data stored in the storage area of original volume is not already copied to snapshot volume, the processor unit copies the data from original volume to the snapshot volume, when a use capacity of the snapshot volume is larger than threshold amount by the copy, the processor unit indicates a specified snapshot generation, the processor unit migrates data of the specified snapshot generation from the snapshot volume to tape device; the processor unit deletes information of the specified snapshot generation in the snapshot volume. | 02-04-2010 |
20100082716 | METHOD, SYSTEM, AND APPARATUS FOR FILE SERVER RESOURCE DIVISION - Provided is a method including the steps of: storing multiple IP addresses and resource management information including correspondence relationships among the multiple IP addresses, multiple file cache regions and multiple virtual file servers; processing multiple file requests transmitted from a client computer in accordance with the resource management information, by use of a lent file cache region being a part of the multiple file cache regions corresponding to the multiple virtual file servers, a lent IP address being a part of the multiple IP addresses, and a lent volume being a part of multiple volumes, the requests transmitted by designating the multiple virtual file servers, respectively; and creating a child virtual file server by receiving a child virtual file server creation request designating one of the multiple virtual file servers. | 04-01-2010 |
20100095164 | FILE MANAGEMENT METHOD AND HIERARCHY MANAGEMENT FILE SYSTEM - 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. | 04-15-2010 |
20100115055 | VIRTUAL FILE SERVERS WITH STORAGE DEVICE - A system renting out file servers to many companies in a data center has a security problem so that the user cannot perform operation needing manager authorization in the file servers. An OS provides execution administrative area information of an application program designated by process information which can specify the range of an accessible device to operate the server system of the customer in the administrative area information. | 05-06-2010 |
20100121892 | STORAGE SYSTEM AND MANAGEMENT METHOD OF FILE SYSTEM USING THE STORAGE SYSTEM - When a management screen for conducting management operation of a file system in the NAS apparatus | 05-13-2010 |
20100122332 | FILE SERVER FOR TRANSLATING USER IDENTIFIER - A file server including: a first interface coupled to a client computer which manages a client side user identifier used by the client computer to identify a client computer user; a second interface coupled to a first storage storing first file system data and a first file system side user identifier used by the first file system to identify the client computer user, and a second storage storing second file system data and a second file system side user identifier used by the second file system to identify the client computer user; a processor which receives a client computer's first access request to the first file system, obtains a first file system identifier which identifies the first file system and the first file system side user identifier, and translates the first file system side user identifier to a first client side user identifier using the first file system identifier. | 05-13-2010 |
20100205232 | File server, file management system and file relocation method - There is provided a file server which is capable of suppressing power consumption of a storage apparatus. When a file sharing program receives a file access from a client, the program makes reference to a mapping table. Then, the program addresses the access to the target file in the volume of a RAID group in which the target file is stored. A coupling-request reception program memorizes a coupling time for each user into a coupling history table. A grouping program applies a grouping to users whose coupling time-zones are similar to each other. A data transfer program transfers, into the same RAID group, data of the files associated with the grouped users, thereby collecting the data of the files into the same RAID group. On account of this, the time-zone during which no access is made to the RAID group (i.e., non-coupling time-zone) can be made longer. Accordingly, a spin-up/down request program makes a spin-down request to the RAID group in the non-coupling time-zone. | 08-12-2010 |
20100205370 | File server, file management system and file management method - 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. | 08-12-2010 |
20110040729 | HIERARCHICAL MANAGEMENT STORAGE SYSTEM AND STORAGE SYSTEM OPERATING METHOD - The storage system eliminates inconsistency between a stub, and a file data storage location indicated by the stub. In a storage system that executes HSM using stubs, information relating to a higher tier, which is a data migration source, is recorded during data migration. The stub in the higher tier is correctly restored using the higher-tier information thus recorded. The stub is restored, and inconsistency between information in the HSM layers is resolved. | 02-17-2011 |
20110078112 | METHOD AND SYSTEM FOR TRANSFERRING DUPLICATE FILES IN HIERARCHICAL STORAGE MANAGEMENT SYSTEM - In order to provide HSM that can effectively use the storage capacity of an upper Tier in an HSM system, a lower Tier of the HSM system detects a group of files having the same data content from a plurality of files stored in the lower Tier, and keeps at least one of the real data of the group of files having the same data content while deleting the rest of the data. The upper Tier receives the process result from the lower Tier. Then, in response to a read request from the host computer that specifies a file included in the group of files and transferred to the upper Tier from the lower Tier, the upper Tier identifies the at least one of the data that is kept and corresponding to the specified file, and responds to the host computer. | 03-31-2011 |
20110119459 | SNAPSHOT SYSTEM - A storage system including: a storage device which configures an original volume for storing data which is read/written by a host, a copy volume for storing a copy of the original volume at a predetermined timing, and a snapshot volume for storing a snapshot data which is a snapshot of the original volume; and a controller which controls access from the host to the storage device; wherein the controller: copies data of the original volume to the copy volume at a predetermined timing; stores the snapshot data in the snapshot volume corresponding to a write request to the original volume without decreasing a performance of the original volume; manages a generation of the stored snapshot according to predetermined copy volume blocks and snapshot volume blocks, and manages a generation of the copy volume; and reads data from the snapshot volume and/or the copy volume when a read request to a volume of a generation different from that of the original volume is received from the host, without decreasing a performance of the original volume. | 05-19-2011 |
20110137863 | STORAGE SYSTEM, NAS SERVER AND SNAPSHOT ACQUISITION METHOD - A storage system including: a storage device for storing a file; a plurality of file systems for managing the file; and a plurality of NAS servers that control access from a client to the file systems via a global namespace formed by grouping local namespaces for the one or more file systems; wherein, each NAS server includes a memory to store global namespace management information including global paths of the file systems; one NAS server of the NAS servers accepts a request to obtain snapshots of the file systems from external of the storage system; the one NAS server instructs itself and the other NAS servers to obtain snapshots of the file systems; the one NAS server and the other NAS servers obtain the snapshots of the file systems, and inform the one NAS server of snapshot identifiers and of local paths of the snapshots; the one NAS server makes snapshot management information including global paths of the snapshots based on each of the snapshot identifiers received from the other NAS servers and each of the global paths of file systems corresponding to the snapshots, included in the namespace management information so that both the global paths of the file systems and the global paths of the snapshots are configured on the same global namespace simultaneously, with a directory configuration of the snapshots being same in configuration layout as a directory configuration of the file systems; and the one NAS server informs the other NAS servers of the snapshot management information. | 06-09-2011 |
20110179247 | STORAGE SYSTEM AND UTILIZATION MANAGEMENT METHOD FOR STORAGE SYSTEM - A storage system | 07-21-2011 |
20110213814 | FILE MANAGEMENT SUB-SYSTEM AND FILE MIGRATION CONTROL METHOD IN HIERARCHICAL FILE SYSTEM - 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. | 09-01-2011 |
20110231458 | FILE LEVEL HIERARCHICAL STORAGE MANAGEMENT SYSTEM, METHOD, AND APPARATUS - 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. | 09-22-2011 |
20110252198 | STORAGE NETWORK SYSTEM AND ITS CONTROL METHOD - 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. | 10-13-2011 |
20110289058 | INFORMATION PROCESSING SYSTEM AND DATA BACKUP METHOD IN INFORMATION PROCESSING SYSTEM - An information processing system retains one or more files utilized by an external apparatus, each of which is made up of a plurality of chunks, in a manner that the chunks making up each of the files are distributed. The information processing system includes a plurality of chunk servers, each storing chunks, and one master server communicatively coupled thereto. The master server retains a file name of a file, chunk IDs indicating chunks making up the file, and chunk IDs indicating chunk servers storing the chunks. When a snapshot taking request for a file is received, the master server identifies chunks included in the file from the file name and the chunk IDs to instruct the chunk servers having these chunks to take a differential snapshot of each of the chunks with the use of a differential snapshot function included in a local file system of each of the chunk servers. | 11-24-2011 |
20110289494 | SYSTEM SOFTWARE UPDATE METHOD - Provided is a computer system including a first server and a storage system. In the first server, a first virtual server and a second virtual server are operated. Upon reception of a request to boot the first virtual server, the second virtual server judges whether system software of the first virtual server, which is requested to be booted, matches system software of the first server in which the first virtual server is operated. In the case where the system software of the first virtual server and the system software of the first server do not match, the second virtual server updates the system software of the first virtual server before booting the first virtual server. | 11-24-2011 |
20110307729 | STORAGE SYSTEM AND POWER CONSUMPTION REDUCTION METHOD FOR THE SAME - In a storage system that includes two or more file servers each including an arbitrary number of operating virtual file servers, a management server: holds a load information table regarding a load on each virtual file server for each time period and redundancy information table for the storage system; judges, with reference to the load information table and redundancy information table, whether or not the loads on the virtual file servers can be handled by a smaller number of file servers than the number of currently-operating file servers; selects, if the judgment result is positive, a power-off target file server and makes another file server fail over a virtual file server in the power-off target file server; and turns off the power-off target file server. | 12-15-2011 |
20120005233 | COMPUTER SYSTEM AND RECORDING MEDIUM - A computer system comprising storage devices having different characteristics, a client computer, and a file access controller managing the storage devices with the HSM is disclosed. The file access controller provides a normal directory tree and a virtual directory tree, according to the configuration, and provides a first file stored in a first storage device through the normal directory tree and the virtual directory tree. And, the file access controller switches providing of a second file stored in a second storage device, depending on a used directory tree, which is used by the at least one client computer, and which is the normal directory tree or the virtual directory tree. Examples of the switch are about accessibility of the second file and recall processing of the second file. | 01-05-2012 |
20120079196 | File server, file management system and file relocation method - In a file server for suppressing power consumption of a storage apparatus, when a file sharing program receives a file access from a client, the program references a mapping table. The program addresses the access to the target file in the volume of a RAID group where the target file is stored. A coupling-request reception program memorizes a coupling time for each user into a coupling history table. A grouping program applies a grouping to users whose coupling time-zones are similar. A data transfer program transfers, into the same RAID group, data of the files associated with the grouped users, thereby collecting the data into the same RAID group. Thus, the time-zone when no access is made to the RAID group (i.e., non-coupling time-zone) can be made longer. Accordingly, a spin-up/down request program makes a spin-down request to the RAID group in the non-coupling time-zone. | 03-29-2012 |
20120101973 | STORAGE SYSTEM AND ITS OPERATION METHOD - Predicting whether a file migration will be executed successfully or not. | 04-26-2012 |
20120143822 | STORAGE SYSTEM, NAS SERVER AND SNAPSHOT ACQUISITION METHOD - A storage where one NAS server makes snapshot management information including global paths of snapshots based on snapshot identifiers and global paths of file systems corresponding to the snapshots, so that global paths of both the file systems and snapshots are configured on the same global namespace simultaneously, with a directory configuration of the snapshots being the same in configuration layout as a directory configuration of the file systems; the one NAS server informs other NAS servers of the snapshot management information; memory in each of the NAS servers stores the snapshot management information; the snapshot management information includes the snapshot identifier, local path and global path for each of snapshots obtained by each NAS server at each point in time; and the computer obtains the snapshot management information from at least one of the NAS servers and displays at least a part of the snapshot management information. | 06-07-2012 |
20120185646 | FILE SERVER, FILE MANAGEMENT SYSTEM AND FILE MANAGEMENT METHOD - 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. | 07-19-2012 |
20120246271 | METHOD AND SYSTEM FOR TRANSFERRING DUPLICATE FILES IN HIERARCHICAL STORAG MANAGEMENT SYSTEM - In order to provide HSM that can effectively use the storage capacity of an upper Tier in an HSM system, a lower Tier of the HSM system detects a group of files having the same data content from a plurality of files stored in the lower Tier, and keeps at least one of the real data of the group of files having the same data content while deleting the rest of the data. The upper Tier receives the process result from the lower Tier. Then, in response to a read request from the host computer that specifies a file included in the group of files and transferred to the upper Tier from the lower Tier, the upper Tier identifies the at least one of the data that is kept and corresponding to the specified file, and responds to the host computer. | 09-27-2012 |
20120254107 | HIERARCHICAL MANAGEMENT STORAGE SYSTEM AND STORAGE SYSTEM OPERATING METHOD - The storage system eliminates inconsistency between a stub, and a file data storage location indicated by the stub. In a storage system that executes HSM using stubs, information relating to a higher tier, which is a data migration source, is recorded during data migration. The stub in the higher tier is correctly restored using the higher-tier information thus recorded. The stub is restored, and inconsistency between information in the HSM layers is resolved. | 10-04-2012 |
20120265961 | STORAGE SYSTEM AND UTILIZATION MANAGEMENT METHOD FOR STORAGE SYSTEM - A storage system | 10-18-2012 |
20120311002 | COMPUTER AND DATA MANAGEMENT METHOD BY THE COMPUTER - The client computer which transmits an access request specifying an object existing in the first file system and the second computer which accesses the second file system are connected to the first computer which accesses the first file system. The second file system includes a shared directory. A specific object which is an object complying with the path name including the name determined in accordance with the type of the second computer is stored in the shared directory. The controller mounts the shared directory to the first file system. The controller creates a link which comprises a name determined in accordance with a certain naming regulation independent of the type of the computer and corresponds to the specific object in the first file system. | 12-06-2012 |
20120311227 | INFORMATION STORAGE SYSTEM, SNAPSHOT ACQUISITION METHOD, AND DATA STORAGE MEDIUM - The information storage system of an aspect of the present invention includes a first differential data storage area which stores differential data of a higher volume from a first point of time to a second point of time, a lower snapshot manager which provides a lower snapshot at the second point of time of the higher volume, and a second differential data storage area which stores differential data of the higher volume after the second point of time. The higher snapshot manager acquires a plurality of generations of higher snapshots from the lower snapshot and the data in the first differential data storage area and acquires a plurality of generations of higher snapshots from the data of the higher volume and the data in the second differential data storage area. | 12-06-2012 |
20130046802 | DATA MIGRATION SYSTEM AND DATA MIGRATION METHOD - When performing migration of data from a migration source file server which is not endowed with any HSM interface, to a migration destination file server which is endowed with HSM, a volume of high capacity is needed for the migration destination file server, and moreover the performance deteriorates directly after the migration. However, with this system, the manager is enabled to set a migration policy using attribute information which can be acquired through a standard file access interface possessed by a file server program, and, when setting the attribute information of the migration destination file, the tier of the file which is to be created is determined, and the migration destination file is created, on the basis of this attribute information and migration policy. | 02-21-2013 |
20140040356 | Server Machine and Network Processing Method - An object of the present invention is to provide a server machine and network processing method capable of running a plurality of same server applications at a time on a single OS in a single sever machine. | 02-06-2014 |
20140101385 | File Management Method and Hierarchy Management File System - There is provided a file management system and method of creating a hierarchy management file capable of preventing an access performance from dropping when a user accesses to a file. According to the system and 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 tcopying the file, so that the accessing performance may be prevented from dropping. | 04-10-2014 |
20140250157 | FILE LEVEL HIERARCHICAL STORAGE MANAGEMENT SYSTEM, METHOD, AND APPARATUS - 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. | 09-04-2014 |