Fujitsu Corporation

Akira Satou

Kenichi Fujita

Koutarou Sasage

Hiroshi Shiomi

Atsushi Masaki

Motohiro Sakai

Kazuma Takatsu

Masahiro Sato

Toshiaki Takeuchi

Atsushi Shinohara

Takuya Kurihara

Masakazu Sakamoto

Yasuhito Kikuchi

Akihide Otawa

Ryosuke Suzuki

Toshiaki Yamauchi

Masato Otsuka

Tooru Yamamoto

An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: receive, from each of a plurality of data centers located in a plurality of positions, load information pertaining to a load of each data center; calculate an estimated load value for each of the plurality of data centers based on the received load information; determine a data center to execute a requested process based on the estimated load value and a time zone of the position where each of the plurality of data centers is located; and control the determined data center to execute the requested process.

Information processing apparatus, system, method, and computer readable medium

A first storage virtualization device operates in a system in which instructions requested by host computers are assigned to a plurality of storage virtualization devices. The first storage virtualization device includes an interface and a processor. The interface receives a write instruction assigned to the first storage virtualization device, data to be written by the write instruction, and operation statuses of other storage virtualization devices in the system. The processor calculates index values which represent loads when the first storage virtualization device processes the write instruction. The processor selects a second storage virtualization device for the purpose of requesting that it execute the write instruction by use of the operation statuses when the index values are greater than thresholds. The processor transmits the write instruction and the data to the second storage virtualization device.

Device and method for causing another device to execute write instruction according to index value representing load

A method, executed by a computer, for controlling storages includes obtaining time elapsed since data to be moved in a source storage in three or more storages whose performance for response to an access request is different is accessed in accordance with the access request, identifying, from the storages, a destination storage that meets condition under which the data to be moved in the source storage is moved, based on the obtained elapsed time by referring to a storage unit that stores the condition under which data is moved to each of the storages, and moving the data to be moved in the source storage to the identified destination storage.

Method for controlling storages and storage control apparatus

A method for controlling a switch apparatus connectable to a host and a storage device including first and second areas, the method includes: establishing schedule of copying data stored in the first area of the storage device into the second area of the storage device; monitoring a state of access by the host to the storage device; carrying out copying the data stored in the first area into the second area while the monitored state of the access by the host allows copying of the data from the first area into the second area; and enhancing copying, if any portion of the data remains when a time set by the schedule is expired, the remaining portion of the data from the first area into the second area.

Data copying method

A switch connectable between hosts and storage device, the switch for providing a service of allotting virtual areas to be deployed in the storage device to any of the hosts upon demand, the switch includes: a processor for controlling allotment of virtual areas to the hosts and allocation of physical areas of the storage device to the virtual areas; and a memory for storing information of the host allowed access to the virtual areas, the processor controlling access by any of the hosts to the virtual area so as to restrict access by any of the hosts to a part of the virtual areas allotted to the any of the hosts in reference to the memory.

Switch apparatus storing information indicating access of hosts to virtual storage areas

A storage area managing apparatus includes a managing unit for managing a plurality of logical volumes provided by a plurality of storage drive groups for storing data redundantly, and a rebuilding controller for generating recovery data when at least one of the drive groups is degraded on the basis of the data stored in the degraded drive group and generating a selected logical volume on the basis of the capacity of the recovery data, the rebuilding controller controlling the management unit for managing first logical volumes to correspond to a part of the plurality of storage drive groups except for the degraded drive group. The storage area managing apparatus includes a first transferring unit for transferring the recovery data to the part of the plurality of storage drive groups as indicated by the selected logical volume.

Storage area managing apparatus and storage area managing method

A virtualization control apparatus includes a selection unit that, when receiving a copy request, conducting an access test corresponding to the copy request on each of the virtualization switch units and selects one of the virtualization switch units of the highest performance among the plurality of the virtual switch units, and a sending unit that sends the copy request to the selected virtualization switch unit.

Virtualization control apparatus and storage system

A method for controlling a storage system having first and second switches and a storage device connected to the switches via a network in response to a request from a host, the storage device having first and second areas, each of the first and second switch accessing to the first and second area, the method includes, receiving a request for copying data stored in the first area to the second area from the host, transmitting initiation notification of the copying to the second switch, executing the copying by the first switch, maintaining progress status of the copying, controlling the second switch to refer to the progress upon receiving a request for access to the first or second area by the host before completion of the copying, and determining whether to permit access to the first or second area by the second switch.

Storage system controlling method, switch device and storage system

In a data recording apparatus, a monitoring unit detects a VLU including an MRB that manages an area that has not been accessed for a specified time period based on a current time, a time management table, and a parameter table. From MRBs of the detected VLU, the monitoring unit selects a plurality of MRBs with an unaccessed time period equal to or more than the specified time period and equal to or less than a total time. The monitoring unit performs synchronization process for data in a primary storage managed by the selected MRBs at a time. During the synchronization process, a correction value is adjusted when there is a data conflict with another device.

Apparatus, method and computer product for data backup and synchronization

A data recording apparatus includes a determining unit that determines whether a storable area is present in the first storage device. The storable area is a combination of a plurality of empty areas having contiguous physical addresses with a total data volume larger than that of a volume of the data. When the determining unit determines that the storable area is present, a first storage unit stores the data in the storable area, and a second storage unit stores the data that has been stored by the first storage unit in the storable area as a lump into the second storage device.

Data recording apparatus, program product, and data recording method

At power-on again, a restore processing unit restores block information tables from a primary storage to a volatile memory. After classifying the block information tables into group-specific links of a plurality of time zones, a first sort processing unit connects the group-specific links to form a group classification link. Then, a second sort processing unit sequentially retrieves the block information tables of the group classification link from the earliest time stamp side for insertion in a position so as to achieve a time-stamp ascending order, thereby reconfiguring the links.

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Kawasaki, Japan

Akira Satou