Abstract: A storage system includes: a grouping unit configured to generate one or more storage device sub-groups, each of the storage device sub-groups including a storage device used to store data, from storage devices included in a plurality of storage device groups that respectively include a plurality of storage devices; a selection unit configured to select any of the one or more storage device sub-groups; and a control unit configured to shut off power supply to a non-selected device group, which is a storage device sub-group other than a selected storage device sub-group and included in a storage device group including the selected storage device sub-group, and shut off power supply to storage devices included in a storage device group other than the storage device group including the selected storage device sub-group.

Abstract: A client PC 10 adapted to be connected to a server apparatus 20 has a first information transmission section that transmits an ID required for authentication by the server apparatus 20 to the server apparatus 20, a second information acquiring section that acquires a master key to be obtained as a result of being authenticated by the server apparatus 20 from the server apparatus 20, a cryptographic key generation section that generates a cryptographic key according to the first information and the second information, an encryption section that encrypts data by means of the cryptographic key and an encrypted data transmission section that transmits the encrypted data encrypted by the encryption section to the server apparatus 20.

Abstract: An apparatus capable of communicating with another apparatus including a first writing unit for writing data into a plurality of recording mediums housed in a first housing, a first storage, has a first reading unit for reading out data from a plurality of recording mediums housed in a second housing for housing the recording mediums storing data written by the first writing unit, a second reading unit for reading out data from the first storage, a second storage for storing cache data of the plurality of the recording mediums housed in the second housing, a controller unit for enabling the first and second reading units to read out data on the basis of the determined area, and a second writing unit for writing data read out by the first reading unit and the second reading unit into the second storage.

Abstract: A control device includes a counter configured to count the number of files stored in a first volume having a data storage area to which an upper limit of the number of files which being stored in the data storage area is set; an interpreting unit configured to interpret an inclination to increase in a capacity of the files stored in the first volume upon the number of the files counted by the counter being greater than a particular number; and a volume controller configured to generate a second volume upon the interpreting unit interpreting the inclination as such that the capacity of the files increases by an amount greater than a particular amount within a certain time length.

Abstract: An access instruction portion that sends an access instruction to the storage apparatus in response to being accessed from the terminal; and an access management portion that sends a confirmation notification to the access instruction portion in response to receiving the access instruction, wherein the access instruction portion comprises: an access instruction distinction step of determining whether or not the sender of the access instruction related to that confirmation notification is the access instruction portion; and an unauthorized access instruction detection portion that determines, on the basis of determination result made by the access instruction distinction portion, the access instruction received by the access management portion from a sender other than the access instruction portion as an unauthorized access instruction.

Abstract: A computer-readable, non-transitory medium stores therein a management program that causes a computer to execute a procedure. The procedure includes detecting an increase in access frequency of a first apparatus by a second apparatus; changing a first process of acquiring from the first apparatus and independently for each access of the first apparatus by the second apparatus, information indicating access particulars, to a second process of collectively acquiring from the first apparatus, the information indicating access particulars, if an increase in the access frequency is detected at the detecting; and acquiring the information indicating access particulars, where the information indicating access particulars is acquired independently according to the first process, and is acquired collectively according to the second process, after the first process is changed to the second process at the changing.

Abstract: When a sub-archive device is newly added, a policy related to an archive method is set in the sub-archive device according to information of addition from the sub-archive devices. The sub-archive device added is linked to a main archive device. Uniform management of a location of each data file archived in the main archive device and the sub-archive device added is performed based on the information of addition. When a retrieval request for a data file is received from an external unit, a location of the data file is retrieved, and a retrieval result is informed to the external device.

Abstract: To provide a power controlling method for use in a storage device which can be operated with less power consumption, at least a storage capacity monitoring unit for monitoring the storage amount of data stored in each storage unit, a power-on unit for controlling the power-on of each storage unit, an access state monitoring unit for monitoring the state of accesses from an upper device to each storage unit, and a power-off unit for controlling the power-off of each storage unit are comprised, thereby controlling the power of a second storage unit.

Abstract: An apparatus capable of communicating with another apparatus including a first writing unit for writing data into a plurality of recording mediums housed in a first housing, a first storage, has a first reading unit for reading out data from a plurality of recording mediums housed in a second housing for housing the recording mediums storing data written by the first writing unit, a second reading unit for reading out data from the first storage, a second storage for storing cache data of the plurality of the recording mediums housed in the second housing, a controller unit for enabling the first and second reading units to read out data on the basis of the determined area, and a second writing unit for writing data read out by the first reading unit and the second reading unit into the second storage.

Abstract: A data management apparatus, system and method are provided. The data management apparatus performing storage processing and readout processing of data for a plurality of storage devices includes a division unit that divides the data into two or more pieces of divided data, a storage destination selection unit that selects, as storage destinations for the pieces of divided data, two or more different storage devices mounted on the data management apparatus, and a distributed storage control unit that stores the pieces of divided data divided by the division unit in the storage destinations selected by the storage destination selection unit in a distributed manner.

Abstract: An access instruction portion that sends an access instruction to the storage apparatus in response to being accessed from the terminal; and an access management portion that sends a confirmation notification to the access instruction portion in response to receiving the access instruction, wherein the access instruction portion comprises: an access instruction distinction step of determining whether or not the sender of the access instruction related to that confirmation notification is the access instruction portion; and an unauthorized access instruction detection portion that determines, on the basis of determination result made by the access instruction distinction portion, the access instruction received by the access management portion from a sender other than the access instruction portion as an unauthorized access instruction.

Abstract: A client PC 10 adapted to be connected to a server apparatus 20 has a first information transmission section that transmits an ID required for authentication by the server apparatus 20 to the server apparatus 20, a second information acquiring section that acquires a master key to be obtained as a result of being authenticated by the server apparatus 20 from the server apparatus 20, a cryptographic key generation section that generates a cryptographic key according to the first information and the second information, an encryption section that encrypts data by means of the cryptographic key and an encrypted data transmission section that transmits the encrypted data encrypted by the encryption section to the server apparatus 20.

Abstract: To provide a power controlling method for use in a storage device which can be operated with less power consumption, at least a storage capacity monitoring unit for monitoring the storage amount of data stored in each storage unit, a power-on unit for controlling the power-on of each storage unit, an access state monitoring unit for monitoring the state of accesses from an upper device to each storage unit, and a power-off unit for controlling the power-off of each storage unit are comprised, thereby controlling the power of a second storage unit.

Abstract: When a sub-archive device is newly added, a policy related to an archive method is set in the sub-archive device according to information of addition from the sub-archive devices. The sub-archive device added is linked to a main archive device. Uniform management of a location of each data file archived in the main archive device and the sub-archive device added is performed based on the information of addition. When a retrieval request for a data file is received from an external unit, a location of the data file is retrieved, and a retrieval result is informed to the external device.

Abstract: An I/O control device that transfers data according to transfer control information, comprising a transfer control information memory means that stores transfer control information, a state detecting means that detects the processed state of the transfer control information stored in the transfer control information memory means, and a transfer control information memory control means by which new transfer control information is stored in the transfer control information memory means in place of the transfer control information upon completion of transfer control information-dependent transfer processing as a result of the detection by the state detecting means.

Abstract: An I/O control device that transfers data according to transfer control information, comprising a transfer control information memory means that stores transfer control information, a state detecting means that detects the processed state of the transfer control information stored in the transfer control information memory means, and a transfer control information memory control means by which new transfer control information is stored in the transfer control information memory means in place of the transfer control information upon completion of transfer control information-dependent transfer processing as a result of the detection by the state detecting means.