| Patent application number | Description | Published |
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| 20080222158 | METHOD OF RECONFIGURING NAS UNDER GNS - Provided is a file management method for a computer system having: one first server; a plurality of second servers; and a plurality of storage subsystems, the file management method including: providing, by the second server, as at least one file, data stored in the storage subsystem; executing, by the second server, at least one first program; obtaining, by the first server, from the second server, a utilization state of the first program executed by the second server; judging, by the first server, from the obtained first program utilization state, whether or not migration of the file group is necessary; and instructing, by the first server, the second servers to migrate the file group in a case where it is judged that the file group needs to migrate. Accordingly, programs stored in NAS constituting GNS can be used efficiently. | 09-11-2008 |
| 20090024869 | Autonomous Takeover Destination Changing Method in a Failover - For realizing an optimum failover in NAS, this invention provides a computer system including: a first computer; a second computer; a third computer; and a storage device coupled to the plurality of computers via a network, in which: the first computer executes, upon reception of an access request to the storage device from a client computer coupled to the plurality of computers, the requested access; and transmits to the client computer a response to the access request; the second computer judges whether a failure has occurred in the first computer; obtains load information of the second computer; obtains load information of the third computer from the third computer; and transmits a change request to the third computer when the obtained load information satisfies a predetermined condition; and the third computer judges whether a failure has occurred in the first computer when the change request is received from the second computer. | 01-22-2009 |
| 20090031154 | POWER SAVING METHOD IN NAS AND COMPUTER SYSTEM USING THE METHOD - Provided is a computer system which includes plurality of computers including a first, second, and third computers, and a storage device coupled to the plurality of computers via a network, in which: the first computer is configured to: access data in a storage area of the storage device; cut, based on settings information and loads on the plurality of computers, at least a part of electric power supplied to the first computer; and send, before cutting the at least a part of electric power supplied to the first computer, a takeover request to the second computer; and the second computer accesses the data within the storage area after receiving the takeover request. With the configuration as described above, power consumption in NAS is reduced. | 01-29-2009 |
| 20090070879 | COMPUTER SYSTEM AND METHOD FOR SCANNING COMPUTER VIRUS - According to the present invention, a timeout caused by executing a virus scan is avoided. A computer system has a first computer, a second computer coupled to the first computer, and a storage system coupled to the first computer and the second computer. The first computer receives a request to write data, writes the requested data in the storage system, and sends a virus scan request of the written data to the second computer. The second computer receives the virus scan request from the first computer, reads the written data out of the storage system, and partially executes a virus scan of the read data. After the partial virus scan of the read data is finished, the first computer sends a response to the received write request. After the first computer sends the response, the second computer executes the remainder of the virus scan of the read data. | 03-12-2009 |
| 20090198929 | STORAGE CONTROL DEVICE AND METHOD FOR MANAGING SNAPSHOT - An erasure declaration-related write request is received. In cases where, in response to the erasure declaration-related write request, erasure-corresponding data elements which are data elements corresponding to an erasure target and which are stored in a storage area A in the first logical volume are overwritten with erasure data elements which are data elements signifying erasure at or after the snapshot acquisition time point, the storage area A is associated with a storage area B in which encrypted data elements corresponding to the erasure-corresponding data elements stored in storage area A are stored. | 08-06-2009 |
| 20090216902 | STORAGE CONTROLLER AND METHOD FOR DETERMINING CLIENT APPROPRIATENESS - A packet priority level is set for a packet configuring a file access request, and a file importance level is set for a file. A storage controller manages, for each client, the amount of information (total amount) in the packets sent and received for each packet priority level, and the amount of information (total amount) in the access-targeted files for each file importance level. The storage controller computes an assessment value for assessing whether a target client is appropriate or inappropriate based on one or more amounts of information corresponding to the target client and one or more packet priority levels, and one or more amounts of information corresponding to one or more file importance levels respectively corresponding to one or more packet priority levels and the target client, and determines whether the target client is appropriate or inappropriate in accordance with whether or not the computed assessment value conforms to a prescribed condition. | 08-27-2009 |
| 20090271506 | MANAGEMENT APPARATUS AND MANAGEMENT METHOD - Proposed are a management apparatus and a management method capable of facilitating resource management With the provided management apparatus and management method for managing a resource allocated to a virtual node that provides a file sharing service to a client in units of a resource management group configured from a plurality of mutually associated resources, an association between the resources is extracted based on history information of access from the client, and the associated resource management groups are integrated based on the extracted association between the resources. Thus, it is possible to reduce the number of resource management groups to be managed, and resource management is thereby facilitated. | 10-29-2009 |
| 20100023566 | Method for Allocating Logical Unit Inside Storage System to Logical Volume and Storage Controller - A storage controller comprises a creation module that creates a logical volume, a management module that manages a plurality of types of logical units inside a storage system, a measurement module that measures an access characteristic, which is a characteristic related to an access to the logical volume, a decision module that decides the type of a logical unit to be allocated to the logical volume based on the measured access characteristic, and an allocation module that allocates to the logical volume a logical unit, of the plurality of types of logical units, of the type decided by the decision module. | 01-28-2010 |
| 20100023717 | REMOTE COPY SYSTEM AND REMOTE SITE POWER SAVING METHOD - A computer migrates to the same remote controller, from among a plurality of remote virtual computers at a remote site, two or more remote virtual computers belonging to a group configured from remote virtual computers with similar remote copy patterns. In the remote controller, these two or more remote virtual computers and remote virtual computers with dissimilar remote copy patterns do not reside. | 01-28-2010 |
| 20100088279 | INFORMATION PROCESSING APPARATUS AND OPERATION METHOD THEREOF - An information processing apparatus includes a remote copying processing part | 04-08-2010 |
| 20100088282 | INFORMATION PROCESSING APPARATUS, AND OPERATION METHOD OF STORAGE SYSTEM - A server apparatus performs data I/O processing on a P-VOL in response to a request from a client apparatus and includes a file system which receives data write and read requests in units of files from the client apparatus. The server apparatus stores, into a D-VOL, differential data generated by updating the P-VOL, and manages a snapshot management table wherein a block address of the D-VOL storing the acquired differential data is registered. When a remaining capacity of a storage area of the D-VOL becomes equal to or less than a predetermined threshold value, the server apparatus enables a block of the D-VOL which had stored therein the differential data on a certain predetermined file, to be used as a storage area for newly acquired differential data. | 04-08-2010 |
| 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 |
| 20100293279 | COMPUTER SYSTEM AND MANAGEMENT METHOD - Proposed are a computer system and a management method capable of localizing influence from a failure of a physical node and preventing influence from the physical node failure from spreading. This computer system includes one or more servers that respectively provide a different single namespace to a client, a plurality of physical nodes that are capable of executing a plurality of virtual nodes that respectively belong to one of the single namespaces and provide a file sharing service to the client, and a management apparatus for managing the virtual nodes, and executes control of calculating a degree of contribution to a user for each of the virtual nodes, and selecting the virtual node to be migrated and the physical node of a migration destination so as to average, among the physical nodes, a total value of the degree of contribution of each of the virtual nodes running on the physical nodes based on the degree of contribution to the user for each of the virtual nodes, and migrating the virtual node selected as the migration target to the physical node selected as the migration destination. | 11-18-2010 |
| 20100299547 | POWER-SAVING CONTROL APPARATUS AND METHOD - A power-saving control apparatus and method capable of power-saving and prevention of decrease in the speed of accessing files of a high level of importance is suggested. | 11-25-2010 |
| 20110029648 | COMPUTER SYSTEM AND METHOD OF MANAGING SINGLE NAME SPACE - Proposed are a computer system and a method of configuring a single name space capable of simplifying the management of a GNS and alleviating the burden of an administrator. A management apparatus collects, from each node, management information and an access log of each of the files managed by the relevant node, extracts a user who satisfies a prescribed condition as a key person for each of the nodes based on the collected management information and access log of each of the files, specifies the key person who is common to the plurality of nodes among the extracted key persons, and requests a server to integrate, as a single name space, the plurality of nodes in which the number of common key persons exceeds a predetermined first threshold. The server integrates, as a single name space, the plurality of nodes in which the number of common key persons exceeds a predetermined first threshold in response to the request. | 02-03-2011 |
| 20110029748 | REMOTE COPY SYSTEM AND REMOTE COPY CONTROL METHOD - Proposed are a remote copy system and a remote copy control method capable of performing the operation of remote copy according to the user's usage status. Resource information representing a resource usage status is collected from a first storage apparatus installed at a primary site and a second storage apparatus installed respectively at one or more secondary sites, a transfer mode of differential data between snapshots to be transferred from the first storage apparatus to the second storage apparatus based on the collected resource information, and the first and second storage apparatuses are controlled so as to transfer the differential data from the first storage apparatus to the second storage apparatus based on the decided transfer mode. | 02-03-2011 |
| 20110106939 | COMPUTER SYSTEM AND ITS MANAGEMENT METHOD - Specifically, provided is a computer system, and its management method, including multiple nodes for providing to a host system a storage area to be used for reading and writing data, and respectively acquiring a snapshot at a pre-set time, and which configures a node group from a part or all of the nodes among the multiple nodes and makes data redundant in node units in the node group. With the foregoing computer system and its management method, an access log is acquired from the respective nodes configuring the node group, and the usage of the snapshot in the node group is determined based on the acquired access log of the respective nodes, and the acquisition time of the snapshot is changed in a part or all of the nodes among the nodes configuring the node group based on the determination result. | 05-05-2011 |
