Patent application number | Description | Published |
20080244738 | ACCESS CONTROL - An access control method includes receiving an access request to a file system from a user terminal through a common Internet file system (CIFS) or a network file system (NFS) and determining whether the access request should be allowed. The method includes determining whether a basic permission attribute of an access request used in the NFS should be allowed with reference to access control information associated with basic permission attributes, the basic permission attribute being associated with an access request received from the user terminal through the CIFS, the access control information indicating whether an access request to respective objects of the file system should be allowed or denied, and the access control information being stored in an access-control-information storing unit. The method also includes determining whether the access request associated with the allowed basic permission attribute should be allowed, in reference to the access control information. | 10-02-2008 |
20090006500 | NAMESPACE REPLICATION PROGRAM, NAMESPACE REPLICATION DEVICE, AND NAMESPACE REPLICATION METHOD - A namespace replication database update step that acquires events relating to namespace update from a FS control server | 01-01-2009 |
20090319661 | CLUSTER NODE CONTROL APPARATUS OF FILE SERVER - When a network file service is transferred from a transfer source node to a transfer target node, a file service state utilized by a client in the transfer source node is transferred to the transfer target node. Then, after the file service state is transferred to the transfer target node, a file service request (I/O request) reached from the client to the transfer source node is transmitted to the transfer target node. | 12-24-2009 |
20100121823 | COMPUTER-READABLE RECORDING MEDIUM STORING CLUSTER SYSTEM CONTROL PROGRAM, CLUSTER SYSTEM, AND CLUSTER SYSTEM CONTROL METHOD - A computer-readable recording medium stores a cluster system control program controlling a cluster system in which clustered nodes are connected to a shared disk having a journaling file system. The cluster system control program causes a computer to execute a request reply information generation procedure for, when a request is accepted from a client, generating request reply information including an identification number identifying the request and reply data to respond to the request from the client, and a saving procedure for saving the request reply information generated by the request reply information generation procedure in the journaling file system. | 05-13-2010 |
20110282923 | FILE MANAGEMENT SYSTEM, METHOD, AND RECORDING MEDIUM OF PROGRAM - A system including computers storing files, a first computer of the computers includes a storage unit to store information about a first directory that includes identification information of a second computer that store information about a second directory or a file under the first directory, and a replying unit to reply, when a request for looking up information about the second directory or the file is received, with the identification information of the second computer stored in the storage unit. | 11-17-2011 |
20120117131 | INFORMATION PROCESSING DEVICE, FILE MANAGEMENT METHOD, AND RECORDING MEDIUM FOR FILE MANAGEMENT PROGRAM - A computer-readable, non-transitory medium storing a program causing a computer to execute a process, the computer being connected through a network to a plurality of file management devices which store a plurality of files distributed in the plurality of file management devices, the process including: extracting an identification information of a file management device by a file descriptor specified in a request for locking a file, the request being generated by an application that is activated on the computer; and transmitting the request for locking the file through an interface section to the file management device corresponding to the identification information. | 05-10-2012 |
20120166389 | Computer product, server, and snapshot collection method - A non-transitory, computer-readable medium storing a program that causes a computer that controls data storage apparatuses respectively storing plural data, and a storing apparatus storing metadata that includes for each of the data, attribute information and storage location information, the process includes receiving a snapshot collection request for a given data group having specified attribute information; determining with respect to the data storage apparatuses and when the collection request is received, whether any of the data of the given data group is stored therein, based on the attribute information and the storage location information; and generating, with respect to each of the data storage apparatuses storing data of the given data group, a snapshot of the plural data stored therein, by controlling the data storage apparatus and further generating a snapshot of the metadata by controlling the storing apparatus. | 06-28-2012 |
20120166606 | DISTRIBUTED FILE OPERATION APPARATUS, DISTRIBUTED FILE OPERATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING DISTRIBUTED FILE OPERATION PROGRAM - A distributed file operation method is executed by a computer that is connected to an arrangement information management apparatus and a plurality of file management apparatuses through a network. The arrangement information management apparatus is configured to manage arrangement information of files. The plurality of file management apparatuses is configured to store the files. The distributed file operation method includes generating an operating request on a first file on the basis of a first protocol, making, by the computer, an inquiry to the arrangement information management apparatus on arrangement information of the first file by specifying an identifier of the first file, and transmitting the operating request to one of the plurality of file management apparatuses indicated by the arrangement information that is provided in response to the inquiry by the arrangement information management apparatus. | 06-28-2012 |
20130159360 | INFORMATION PROCESSING APPARATUS, DATA STORAGE METHOD AND COMPUTER-READABLE RECORDING MEDIUM - An information processing apparatus includes a unit to store a partial data constituting a part of a processing target file to be stored on an object storage as a new object on an object storage, and to add object management information containing data extent information indicating a position and a size of the partial data within the processing target file, name information representing an object name of the new object and storage sequence information indicating a storage sequence of the new object to update history information on the processing target file; and a unit to read and output readout target data from the object storage on the basis of the readout target extent information and each object management information in the update history information related to the processing target file. | 06-20-2013 |
20140279943 | FILE SYSTEM VERIFICATION METHOD AND INFORMATION PROCESSING APPARATUS - An information processing apparatus includes an identifying unit and a verifying unit. The identifying unit identifies, among a plurality of unit storage areas in a volume storing therein one or more pieces of management object information managed by a file system and one or more pieces of management information corresponding one-to-one with the management object information pieces and used to manage the corresponding management object information pieces, one or more unit storage areas whose information has been updated within a predetermined time frame. The verifying unit verifies the consistency between the management object information pieces and the management information pieces in the file system using the information of the identified unit storage areas. | 09-18-2014 |
20150067442 | INFORMATION PROCESSING APPARATUS AND DATA REPAIRING METHOD - A processor executes a procedure including performing a repair process including first detecting whether there is any abnormality in data read out from a first storage, repairing abnormal data that is the data in which abnormality is detected as a result of the first detection, and storing the repaired data in a second storage area, second detecting when an address of data changed in the repair process and an address of a read-out source of the abnormal data in the first storage area match, whether there is any abnormality in data read out from an area indicated by the address of data changed in the repair process and the address of the read-out source of the abnormal data in the first storage area, repairing and storing, in the second storage area, the data in which abnormality is found as a result of the second detection. | 03-05-2015 |