Patent application number | Description | Published |
20080235300 | DATA MIGRATION PROCESSING DEVICE - A migration target comprising one or more objects is migrated to a migration-destination file server, which is the file server specified as the migration destination, and object correspondence management information, which is information showing the corresponding relationship between respective migration-source object IDs for identifying in a migration source respective objects included in the migration target, and respective migration-destination object IDs for identifying these respective objects in the migration-destination file server, is created in the migration-destination file server. | 09-25-2008 |
20080235350 | ROOT NODE FOR FILE LEVEL VIRTUALIZATION - A root node creates and issues an object ID comprising share information designating a share unit, which is a logical public unit. The share unit is a logical public unit comprising no less than two objects. Transfer control information in which share information is associated with device information showing a device for managing this share unit, is prepared for each share unit. The root node receives request data, which has an object ID comprising share information, specifies device information corresponding to the share information in this object ID from the transfer control information, and transfers the request data to the device indicated in this device information. | 09-25-2008 |
20090063556 | ROOT NODE FOR CARRYING OUT FILE LEVEL VIRTUALIZATION AND MIGRATION - An object ID comprises share information denoting a share unit, which is a logical export unit, and which includes one or more objects. Migration determination information denoting whether or not migration has been completed for each share unit is provided. A root node maintains the object ID in the migration destination of a migrated file, and updates migration determination information to information denoting that the share unit comprising this file is a migrated share unit. The root node, upon receiving request data having the object ID, determines, by referencing the above-mentioned migration determination information, whether or not the share unit denoted by the share information inside this object ID is a migrated share unit, and if this unit is a migrated share unit and if the file identified from this object ID is a migrated file, transfers the request data having the migration-destination object ID corresponding to this file to the migration-destination node. | 03-05-2009 |
20090077087 | ACCESS CONTROLLER THAT CONTROLS ACCESS TO FILES BY USING ACCESS CONTROL LIST - Each time the file access request is received, it is discriminated whether there is an ACL which corresponds with the file system of the type following the switching in the file designated by the file access request. In cases where the judgment result is that there is no such ACL, an ACL which corresponds with the file system of the type following the switching is generated on the basis of an ACL which corresponds with the file system of the type prior to the switching which is associated with the designated file, and the ACL thus generated is used to control access in accordance with the received file access request. | 03-19-2009 |
20090077201 | ROOT NODE FOR INTEGRATING NAS OF DIFFERENT USER NAME SPACES - A computer apparatus which integrates at least two or more services of user management domains has a processor, a memory and an interface. The processor receives an access request, specifies an access source domain, specifies an access target domain, and judges whether the specified access source domain matches the specified access target domain. If the access source domain is different from the access target domain, the processor extracts a user ID of the specified access source domain from the received access request, and refers to ID conversion information indicating correspondence of user IDs between the user management domains whose services are integrated to convert the extracted user ID of the access source domain into a user ID of the specified access target domain. Thus, loads of configuration at the time of service integration are reduced. | 03-19-2009 |
20090089413 | INTERMEDIATE NAS APPARATUS HAVING ACL INHERITANCE FUNCITON FOR NAMESPACE INTEGRATION - According to this invention, a computer system which provides a client node with a file system mounted into a virtual namespace, comprising: at least one file server which provides the file system; a root node which mounts the file system provided by the file server into the virtual namespace; and a network which couples the file server and the root node. The root node has an interface coupled to the network, a processor coupled to the interface, and a memory coupled to the processor. The root node is configured to: obtain access information set to a directory above a point in the virtual namespace at which the file system is to be mounted when mounting the file system into the virtual namespace; judge whether the obtained access information is to be inherited; and set, to the file system to be mounted, the obtained access information that is to be inherited. | 04-02-2009 |
20100023716 | STORAGE CONTROLLER AND STORAGE CONTROL METHOD - Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an N | 01-28-2010 |
20100070532 | Storage device, content publishing system, and program - In order to prevent the same content from being published in duplicate, the invention provides a storage device which provides a storage area for storing content in accordance with a request from a user and can publish the stored content in which the storage area includes publishing content storage area which publishes the stored content to outside, duplication identification information for determining duplication of content is generated based on accepted content, publishing content is generated by embedding a digital watermark including identification information of the user to the accepted content if duplicate content of the accepted content is not stored in the storage area, the publishing content is stored in the publishing content storage area, and the content is not stored in the publishing content storage area if the duplicate content of the accepted content is stored in the storage area. | 03-18-2010 |
20100169568 | COMPUTER SYSTEM, STORAGE SYSTEM AND METHOD FOR SAVING STORAGE AREA BY INTEGRATING SAME DATA - Provided is a storage system capable of saving actually used physical storage areas and of achieving a high speed in write processing. There is disclosed a computer system including a server and a storage system, in which physical storage areas of a disk drive are managed for each one or more physical blocks of predetermined sizes, and allocation of one or more physical blocks to a plurality of logical blocks of predetermined sizes is managed, and the storage system stores data written in a first logical block in a first physical block allocated to the first logical block and allocates the first physical block to a second logical block where the same data as the data stored in the first physical block is to be written. | 07-01-2010 |
20110066666 | FILE MANAGEMENT METHOD AND STORAGE SYSTEM - Files stored in a storage system are grouped in a metadata server, and storage servers discretely storing these files are instructed to detect file duplication and to remove duplicate data. The storage servers detect duplicate data by comparing file fragments stored by the storage servers themselves with each other. In a case where duplicate data is detected, the storage servers delete the duplicate data. | 03-17-2011 |
20110078117 | BACKUP CONTROL APPARATUS AND METHOD ELIMINATING DUPLICATION OF INFORMATION RESOURCES - A backup control apparatus which references duplication management information which includes first stored location information indicating the stored location of first information resource and second stored location information indicating the stored location of a second information resource which duplicates the first information resource, and identifies, from among a plurality of information resources belonging to a backup region. The first information resource stored in the location indicated by the first stored location information, and a second information resource stored in the location indicated by the second stored location information corresponding to the first stored location information. The backup control apparatus replaces the identified second information resource with linked information indicating a link to the identified first information resource, and backs up the backup region in which the second information resource is replaced with the linked information. | 03-31-2011 |
20110154033 | ONLINE STORAGE SERVICE SYSTEM AND ITS DATA CONTROL METHOD - A WEB service providing server can execute WEB service processing using data provided by an online storage service providing server, and leaking of data at the WEB service providing server can be prevented. | 06-23-2011 |
20110191305 | STORAGE SYSTEM FOR ELIMINATING DUPLICATED DATA - A storage system | 08-04-2011 |
20110231603 | COMPUTER SYSTEM, STORAGE SYSTEM AND METHOD FOR SAVING STORAGE AREA BY INTEGRATING SAME DATA - Provided is a storage system capable of saving actually used physical storage areas and of achieving a high speed in write processing. There is disclosed a computer system including a server and a storage system, in which physical storage areas of a disk drive are managed for each one or more physical blocks of predetermined sizes, and allocation of one or more physical blocks to a plurality of logical blocks of predetermined sizes is managed, and the storage system stores data written in a first logical block in a first physical block allocated to the first logical block and allocates the first physical block to a second logical block where the same data as the data stored in the first physical block is to be written. | 09-22-2011 |
20120016854 | FILE-SHARING SYSTEM AND METHOD FOR MANAGING FILES, AND PROGRAM - A file, for which writing has been reserved, in a file-sharing system can be efficiently read. A check-in file agent is provided in a computer that executes check-in of a file as the file-write reserving processing, a file manager is provided in a file-sharing computer, and a check-out file agent is provided in a computer that executes check-out of a file as the file reading processing. Upon request for check-in of a file, the check-in file agent divides the file into divided files and generates metadata that indicates the order of division of the file, and transmits them to the file-sharing computer for storage therein. Upon request for check-out of the file, the check-out file agent receives the metadata from the file-sharing computer, and based on the metadata, sequentially receives the divided files to generate a file to be checked out. | 01-19-2012 |
20120030242 | STORAGE SYSTEM AND FILE ACCESS DETERMINATION METHOD OF THE SAME - Problem: Providing a storage system which can be applied to a broad range of access forms to the file and, at the same time, in which the performance of file access control processing is improved. Solution: The storage system stores a part of the access control information of a variable size in the basic attribute area of the file, and stores the storage format information in the basic attribute area of the file or in the file system metadata area. At the time of processing the access to the file, with reference to the storage format information, the storage system decodes a part of the access control information into an access mask bit string as needed, and performs the preceding access control processing. If whether access is permitted or not can be determined through the preceding access control processing, the access control processing is performed while, whether access is permitted or not cannot be determined, performs the access control processing based on the extended attribute information. | 02-02-2012 |
20120102005 | FILE MANAGEMENT METHOD AND COMPUTER SYSTEM - To inhibit deterioration in the I/O performance of a file even if the file includes an area that is frequently accessed. | 04-26-2012 |
20120109940 | INFORMATION PROCESSING SYSTEM, METHOD OF CONTROLLING INFORMATION PROCESSING SYSTEM, AND SEARCH CONTROLLER - An integrated search process on files can be executed by multiple search devices even if setting granularities of access control to the files are different among the search devices. Upon execution of file migration or access control information batch update, information needed for a search server to execute security trimming is extracted from ACL information in a specific format on a document management server. Then the extracted information is transferred to the search server, converted to ACL information in a general format, and registered in a search index in the search server. With this process, a storage system using different access control methods is configured to perform the security trimming based on the ACL information with which access control having the finest setting granularity can be set. | 05-03-2012 |
20120110045 | FILE MANAGEMENT METHOD AND STORAGE SYSTEM - Files stored in a storage system are grouped in a metadata server, and storage servers discretely storing these files are instructed to detect file duplication and to remove duplicate data. The storage servers detect duplicate data by comparing file fragments stored by the storage servers themselves with each other. In a case where duplicate data is detected, the storage servers delete the duplicate data. | 05-03-2012 |
20120198147 | COMPUTER SYSTEM, STORAGE SYSTEM AND METHOD FOR SAVING STORAGE AREA BY INTEGRATING SAME DATA - Provided is a storage system capable of saving actually used physical storage areas and of achieving a high speed in write processing. There is disclosed a computer system including a server and a storage system, in which physical storage areas of a disk drive are managed for each one or more physical blocks of predetermined sizes, and allocation of one or more physical blocks to a plurality of logical blocks of predetermined sizes is managed, and the storage system stores data written in a first logical block in a first physical block allocated to the first logical block and allocates the first physical block to a second logical block where the same data as the data stored in the first physical block is to be written. | 08-02-2012 |
20120278289 | ACCESS CONTROLLER THAT CONTROLS ACCESS TO FILES BY USING ACCESS CONTROL LIST - Each time the file access request is received, it is discriminated whether there is an ACL which corresponds with the file system of the type following the switching in the file designated by the file access request. In cases where the judgment result is that there is no such ACL, an ACL which corresponds with the file system of the type following the switching is generated on the basis of an ACL which corresponds with the file system of the type prior to the switching which is associated with the designated file, and the ACL thus generated is used to control access in accordance with the received file access request. | 11-01-2012 |
20120311284 | STORAGE CONTROLLER AND STORAGE CONTROL METHOD - Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an N.sup.th point-in-time snapshot, which constitutes the latest point-in-time snapshot, is acquired to a memory module. The memory module stores two or more pieces of difference information. The two or more pieces of difference information comprise difference information that shows the difference between a first point-in-time snapshot and any snapshot other than the first point-in-time snapshot of N snapshots. Copy difference information, which is information that shows the difference between the first point-in-time snapshot and a specified snapshot from among N snapshots, and which is used in copying the specified snapshot, is created on the basis of the two or more pieces of difference information. | 12-06-2012 |
20120330907 | STORAGE SYSTEM FOR ELIMINATING DUPLICATED DATA - A storage system | 12-27-2012 |
20130124674 | COMPUTER SYSTEM AND DATA MIGRATION METHOD - Proposed are a computer system and a data migration method which enable an improved response performance to a data access request from the user. | 05-16-2013 |
20130138705 | STORAGE SYSTEM CONTROLLER, STORAGE SYSTEM, AND ACCESS CONTROL METHOD - A control unit of a storage system controller receives an access command to a first file specifying a first access position in the first file. A storage apparatus stores management information of the first file and management information of each of subfiles obtained by dividing the first file. The management information of the first file contains information associating a data position in the first file and management information of a subfile containning data at the data position. The management information of each of the subfiles contains information associating a data position in the corresponding subfile and a physical storage position. The control unit references the management information of the first file to identify the management information of the subfile containning the data at the first access position, and references the management information of the identified subfile to identify a physical storage position of the first access position. | 05-30-2013 |
20130144921 | ROOT NODE FOR FILE LEVEL VIRTUALIZATION - Root node arrangements configured to carry out file level virtualization for logically providing a plurality of share units that can be shared among file systems of the root node or other one or more root nodes, to a client. | 06-06-2013 |
20130191350 | Single Instantiation Method Using File Clone and File Storage System Utilizing the Same - In file de-duplication using hash value comparison, hash values of all target files must be calculated and actual data of all files must be read for hash value calculation, so that the processing time was long. The present invention provides a file storage system comprising a controller and a volume storing a plurality of files, the volume including a first directory storing a first file and a second file and a second directory storing a third file being created, wherein the controller migrates actual data of the second file to the third file, sets up a management information of the second file so that the third file is referred to when the second file is read, and if the sizes of actual data of the first file and the actual data of the third file are identical and the binaries of the actual data of the first file and the actual data of the third file are identical, sets up a management information of the first file to refer to the third file when reading the first file. | 07-25-2013 |
20130290623 | COMPUTER AND METHOD FOR CONTROLLING COMPUTER - Recently, along with the increase in the importance of data protection, there are increasing demands for constructing a computer system capable of protecting data even when widespread disaster occurs. In order to reduce the risk of data loss even when widespread disaster occurs, the present invention computes the risk of data loss for each replication relationship of data (combination of storage subsystems storing the same data), and allocates data so that the risks of losing data of all replication relationships are optimized. | 10-31-2013 |
20130318318 | STORAGE CONTROLLER AND STORAGE CONTROL METHOD - Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an N.sup.th point-in-time snapshot, which constitutes the latest point-in-time snapshot, is acquired to a memory module. The memory module stores two or more pieces of difference information. The two or more pieces of difference information comprise difference information that shows the difference between a first point-in-time snapshot and any snapshot other than the first point-in-time snapshot of N snapshots. Copy difference information, which is information that shows the difference between the first point-in-time snapshot and a specified snapshot from among N snapshots, and which is used in copying the specified snapshot, is created on the basis of the two or more pieces of difference information. | 11-28-2013 |
20130346688 | COMPUTER SYSTEM AND METHOD OF CONTROLLING I/O WITH RESPECT TO STORAGE APPARATUS - An aspect of this invention is a computer system, including: a storage apparatus for allocating real storage areas of a plurality of tiers of a tiered real storage area pool to a volume, and migrating and relocating data within the volume between the plurality of tiers; and a host apparatus that accesses the volume provided by the storage apparatus. The host apparatus is configured to refer to tier information including information on a corresponding one of the plurality of tiers to which an access destination address within the volume belongs to identify the corresponding one of the plurality of tiers to which the access destination address belongs and refer to settings predetermined for the plurality of tiers to perform I/O control for the access destination address based on settings of the identified corresponding one of the plurality of tiers. | 12-26-2013 |
20140304242 | STORAGE SYSTEM FOR ELIMINATING DUPLICATED DATA - A storage system | 10-09-2014 |
20140379672 | SINGLE INSTANTIATION METHOD USING FILE CLONE AND FILE STORAGE SYSTEM UTILIZING THE SAME - The file storage system includes a controller and a volume storing a plurality of files, the volume including a first directory storing a first file and a second file and a second directory storing a third file being created. The controller migrates actual data of the second file to the third file, sets up a management information of the second file so that the third file is referred to when the second file is read, and if the sizes of actual data of the first file and the actual data of the third file are identical and the binaries of the actual data of the first file and the actual data of the third file are identical, sets up a management information of the first file to refer to the third file when reading the first file. | 12-25-2014 |