Fujitsu Corporation

Georgia Tech Research Corporation

Motoyuki Kawaba

Yuuji Hotta

Kazuichi Oe

Hidekazu Takahashi

Lilian Harada

Yasuhiko Kanemasa

Kazutaka Ogihara

Toshihiro Shimizu

Yoshifumi Ujibashi

Calton Pu

Qingyang Wang

Satoshi Iwata

Yukiko Seki

A variant information processing device for processing genetic information includes a processor configured to create variant storage data, from variant information of each of a plurality of target individuals to be processed, where the variant information includes information of variant locus and variant pattern associated with the variant locus. The variant locus corresponds to a portion where the genetic information varies among the plurality of target individuals, the variant pattern corresponds to the genetic information of the portion, and the variant storage data includes an array region with each a first storage region with a fixed bit length and a second storage region with the fixed bit length. The code associated with the variant pattern at each of the variant locus is stored in first storage region or both of the first and second storage regions depending on the length of variant pattern associated with the code.

Variant information processing device and method

A database system includes a storage device which stores a database storing a plurality of data groups, range information including a minimum and a maximum of an appointed item, a total value and a number of the data, and an information processing device comprises a processor configured to, in response to deletion of a first data, update the total value and the number of the data, calculate a difference between a first total value, based on the number of the data and at least one of the maximum and the minimum in the range information, and a second total value which is updated, as minimum or maximum, judge at least one of whether or not the minimum which is calculated exceeds the minimum in the range information and whether or not the maximum which is calculated is less than the maximum in the range information, and update the range information.

Database system, information processing device and database program

An information processing apparatus includes a storage device configured to have a first storage area disposed on a first memory, a second storage area disposed on a second memory being slower in speed than the first memory to be cached by using a capacity of a cache area exclusive of the first storage area on the first memory, and a third storage area disposed on the second memory without being cached, and a processor configured to increase a capacity of the third storage area while decreasing a capacity of the second storage area corresponding to the capacity of the cache area upon an increase of the capacity of the first storage area and a decrease of the capacity of the cache area.

Information processing apparatus and control method for dynamic cache management

An information processing device includes a processor. The processor is configured to allocate a plurality of allocation unit areas to a virtual volume from a first storage device and a second storage device. The processor is configured to generate evaluation information related to access for each of a plurality of divided areas into which each of the plurality of allocation unit areas is divided. The processor is configured to determine based on the generated evaluation information, when allocation to the virtual volume is changed from a first allocation unit area of the first storage device to a second allocation unit area of the second storage device, a first data transfer order of transferring data in divided area units from the first allocation unit area to the second allocation unit area. The processor is configured to transfer the data in accordance with the first data transfer order.

Storage system and method for allocating virtual volumes based on access frequency

A storage apparatus is provided, including a first storage device; a second storage device having an access speed higher than an access speed of the first storage device; a monitor that monitors a write access load for the first storage device; a comparator that compares the write access load for the first storage device monitored by the monitor, with a load threshold; and a switch that causes write access target data to be written into the first and second storage devices, when it is determined by the comparator that the write access load for the first storage device does not exceed the load threshold, while causing the write access target data to be written into the first storage device, when it is determined by the comparator that the write access load for the first storage device exceeds the load threshold.

Storage apparatus, method of controlling storage apparatus, and non-transitory computer-readable storage medium storing program for controlling storage apparatus

An apparatus is connected to a first storage and a second storage which is accessed at an access speed lower than an access speed of the first storage. The apparatus accesses each of blocks stored in the second storage, and counts, for each of the blocks, the number of accesses made for the each block. The apparatus determines, based on the number of accesses that has been counted for each of the blocks, a transfer target block that is a target which is to be transferred from the second storage to the first storage, and determines a transfer time at which transfer of the transfer target block is to be performed. The apparatus transfers the determined transfer target block to the first storage at the determined transfer time.

Apparatus and method for transferring data between storages having different access speeds

A first memory unit stores requester event information pieces each including time information indicating an occurrence time of an event associated with a process executed by a first server. A second memory unit stores request-destination event information pieces each including time information indicating an occurrence time of an event associated with a process executed by a second server in response to a request from the first server. A determining unit determines, for each request-destination event information piece, a correction allowable range of the time information by comparing the time information of the request-destination event information pieces with that of the requester event information pieces. A generating unit generates an information set by extracting, from the request-destination event information pieces arranged in chronological order according to the time information, chronologically consecutive request-destination event information pieces whose correction allowable ranges include a common value.

Apparatus and method for correcting time stamps of transactions performed by multiple servers

From unit storage areas each having a certain size in a first storage device, an extraction unit extracts, at certain time intervals, a monitored area formed by consecutive unit storage areas having been accessed at least a predetermined number of times that is greater than zero and being similar to each other in the number of times of access. When detecting movement between the positions of same-sized monitored areas among the extracted monitored areas over time, a prediction unit determines a predicted storage area predicted to be accessed in the storage area of the first storage device on the basis of the direction of the movement between the positions of the same-sized monitored areas, and performs a control operation so that the content of the predicted storage area is copied to a second storage device that provides faster access than the first storage device.

Prefetching monitored areas in a storage apparatus

A first memory stores requester event records describing events that occurred in relation to processes executed in a first server. A second memory stores requestee event records describing events that occurred in relation to processes executed in a second server in response to execution requests issued from the first server. An associating unit searches the first and second memories for requester event records and requestee event records whose transaction identifiers are identical and associates the found records together. A determining unit compares the associated event records with each other in terms of their time information. Based on this comparison, the determining unit determines a correction value for correcting time differences between requester event records in the first memory and requestee event records in the second memory.

Information processing apparatus and method for determining time correction values

A storage system includes: a first storage unit; a second storage unit that has an access speed higher than an access speed of the first storage unit; and a storage controller that collects load information about respective loads in a plurality of areas in the first storage unit, selects a candidate area in the first storage unit which is to be migrated, based on the collected load information, and migrates data in the selected candidate area, to the second storage unit.

Storage controller, storage system, method of controlling storage controller, and computer-readable storage medium having storage control program stored therein

In an information processing apparatus, a calculation unit retrieves data that indicates processing periods of processes executed in each time window constituting an analysis period. The calculation unit then calculates a total processing time for each time window by adding up processing times spent for execution of processes. The calculation unit also calculates a total progress quantity for each time window by adding up progress quantities of the processes. A determination unit determines, based on the total processing time and total progress quantity of each time window, a threshold of the total processing times at which the ratio of an increase of the total progress quantity to an increase of the total processing time is equal to or smaller than a predetermined value. A detection unit detects time windows whose total processing times are equal to or longer than the threshold.

Method, computer program, and information processing apparatus for analyzing performance of computer system

An information processing apparatus submits jobs for execution on a server. Jobs are classified into a plurality of groups, and these groups are ranked in ascending order of workload that the groups of jobs impose on the server. A processor in the information processing apparatus counts ongoing jobs that are currently executed on the server and belong to a specified number of top-ranked groups. The processor designates pending jobs that belong to other groups than the specified number of top-ranked groups and suspends submission of processing requests of the designated pending jobs to the server, when the number of ongoing jobs is greater than or equal to a threshold and when there are one or more pending jobs that belong to the specified number of top-ranked groups.

Information processing apparatus, computer program, and method for controlling execution of jobs

For segments having the number of IOs exceeding a threshold, a data collection unit connects adjacent segments whose distance is within 's' to each other and extracts the connected segments and segments in the range of 's' from outside of the connected segments as an n_segment. A workload analysis unit then determines a target whose data is moved from an HDD to an SSD in units of n_segments.

Control program of storage control device, control method of storage control device and storage control device

To which method on each method call order pattern included in a series of application codes executed in response to a request a method included in an application code executed in response to a request corresponds is detected; a code is generated based on identification information corresponding to the detected method on the call order pattern; and the generated code is inserted to the application code.

Code conversion method, apparatus, storage medium and request remaining time response method

A tied server includes a first storage unit that stores appearance patterns of messages having a transaction identifier to identify a transaction. The tied server also includes a second storage unit that stores messages executed on the transaction DB server having the transaction ID by the application server and communicated between an application server and a DB server. The tied server classifies the messages stored in the second storage unit with respect to each transaction based on the appearance patterns of the messages stored in the first storage unit.

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Kawasaki, Japan

Motoyuki Kawaba