Patent application number | Description | Published |
20100088318 | INFORMATION SEARCH SYSTEM, METHOD, AND PROGRAM - Disclosed is a system in which an index registration unit registers an index, which will be used for search processing, as a partitioned index which is partitioned on a time series basis, and a search means reads indexes older than a specified point in time, which is used as a search base point, to perform search processing, thereby searching for information based on a point in time in the past. | 04-08-2010 |
20100250634 | FILE SERVER SYSTEM AND FILE MANAGEMENT METHOD - A management policy is given to a predetermined storage area by an administrator or a predetermined end user of end users as users of a plurality of client terminals. At this time, a file server generates a setting file in which the management policy is written, to set in a directory corresponding to the predetermined storage area. A write instruction (change data) is given by the administrator or the predetermined end user. The file server changes the management policy based on the change data. | 09-30-2010 |
20110231508 | CLUSTER CONTROL SYSTEM, CLUSTER CONTROL METHOD, AND PROGRAM - A slave computer out of a plurality of slave computers that are connected to a plurality of clients through a front network and provide the front network with a single IP address that is a same IP address comprises: a responsible client table that indicates a client for which each of the plurality of slave computers is responsible; and an ARP processing unit that refers to the responsible client table when an ARP request for the single IP address has been received from one of the plurality of clients and sends an ARP response when a client that has sent the ARP request is present in the responsible client table, and otherwise does not send the ARP response, wherein a client in the responsible client table is added, changed, or deleted by a master computer connected through a back-end network. | 09-22-2011 |
20110320750 | INFORMATION PROCESSING SYSTEM AND METHOD - The present invention provides information storage system and method capable of changing an information storage format to a format suitable for the data utilization form. There are provided a means that records history information of information processing on data, a plurality of information storing means that store information in mutually different information storage formats, and an information storage format control means that changes an information storage format of data, on the basis of a history of processing relating to the data. | 12-29-2011 |
20120036317 | STORAGE SYSTEM AND STORAGE ACCESS METHOD AND PROGRAM - A system has a data structure in which a value can be obtained from a key. In a write access, a first pair and a second pair are stored respectively in a volatile storage device. The first pair is saved in a nonvolatile storage device before returning a response, and the second pair is saved in the first storage device at any time with the second pair saved in the volatile storage device. In a read access in which a value is obtained from a key, it is determined that data is not stored normally if the second pair is not found in processing in which after obtaining the hash value of the value from the first pair, the second pair is read. | 02-09-2012 |
20130046845 | STORAGE SYSTEM, CONTROL METHOD FOR STORAGE SYSTEM, AND COMPUTER PROGRAM - A control method for a storage system, whereby a plurality of storage nodes included in the storage system are grouped into a first group composed of storage nodes with a network distance in the storage system within a predetermined distance range, and second groups composed of storage nodes that share position information for the storage nodes that store data. A logical spatial identifier that identifies the second groups is allocated for each of the second groups, to calculate a logical spatial position using a data identifier as an input value for a distributed function, and store data corresponding to the data identifier in the storage node that belongs the second group to which the identifier corresponding to the calculated position is allocated. | 02-21-2013 |
20130346365 | DISTRIBUTED STORAGE SYSTEM AND DISTRIBUTED STORAGE METHOD - A distributed storage system of the present invention includes a plurality of data nodes coupled via a network and respectively including data storage units. At least two of the data nodes hold in the respective data storage units thereof replicas of a plurality of types of data structures that are logically identical but are physically different between the data nodes. | 12-26-2013 |
20140129863 | SERVER, POWER MANAGEMENT SYSTEM, POWER MANAGEMENT METHOD, AND PROGRAM - To increase the reliability of power supply control of a server group and reduce the power consumption of the server group. A server includes a power supply stop control unit which stops a power supply of a predetermined processing unit upon receiving a power supply stop instruction signal instructing to stop the power supply, a power supply start-up control unit which intermittently starts up the power supply of the predetermined processing unit when the power supply stop control unit stops the power supply of the predetermined processing unit, a power supply start-up determination unit which determines whether a processing load of other servers which are executing their processes among a plurality of other servers is higher than an upper limit load determined in advance as a load required to be processed by servers the number of which is greater than or equal to the number of the other servers which are executing their processes when the power supply start-up control unit starts up the power supply of the predetermined processing unit, and a process control unit which controls process execution for the predetermined processing unit when the processing load of the other servers which are executing their processes is determined to be higher than the upper limit load. | 05-08-2014 |
20140173035 | DISTRIBUTED STORAGE SYSTEM AND METHOD - Provided a plurality of data nodes connected in a network, each including a data storage unit. The data node of data replication destination temporarily stores the-data to be updated in an intermediate data structure, and converts asynchronously with respect to the update request to a target data structure to store the converted data in the data storage unit. Based on access history information stored in an access history recording unit, trigger information, concerning timing for execution of conversion to the target data structure performed asynchronously by the data node is changed. | 06-19-2014 |