公开(公告)号：US20210048869A1

公开(公告)日：2021-02-18

申请号：US16794287

申请日：2020-02-19

Applicant: HITACHI, LTD.

Inventor： Jun MIZUNO ,  Soichi TAKASHIGE ,  Keisuke HATASAKI

IPC: G06F1/3212 ,  G06F1/3234 ,  G06F1/3228 ,  H04W52/02

Abstract: Status information including remaining battery power is collected from a management target device. Subsequent operations of the device are identified from an operation schedule management collection. Battery consumptions corresponding to subsequent operations of the device are estimated from KPI management collection that includes information representing relationships between battery consumptions and operations with respect to each of a plurality of devices. The battery life of the device is predicted based on the estimated battery consumptions and the remaining battery power represented by the collected status information. A circuit schedule of a maintenance engineer is determined based on the predicted battery life, the schedule including necessity of dispatch of the maintenance engineer to the device.

公开(公告)号：US20240281317A1

公开(公告)日：2024-08-22

申请号：US18240376

申请日：2023-08-31

Applicant: Hitachi, Ltd.

Inventor： Mineyoshi MASUDA ,  Kouichi MURAYAMA ,  Jun MIZUNO

IPC: G06F11/07 ,  G06F11/30 ,  G06F11/32

CPC classification number: G06F11/079 ,  G06F11/3075 ,  G06F11/327

Abstract: A management computer 100 which assists in identifying a cause of failure concerning execution of an application includes a CPU 101 and an HDD 103. The HDD 103 stores configuration information (configuration information, configuration change history) concerning configurations at a plurality of time points regarding a given target configuration object concerning execution of the application. The CPU 101 calculates a viewpoint-based difference score that is a difference score in each of a plurality of viewpoints between a current configuration and a past configuration regarding the given target configuration object concerning execution of the application.

公开(公告)号：US20240095064A1

公开(公告)日：2024-03-21

申请号：US18170812

申请日：2023-02-17

Applicant: Hitachi, Ltd.

Inventor： Jun MIZUNO

IPC: G06F9/48 ,  G06F11/34

CPC classification number: G06F9/4875 ,  G06F11/3409

Abstract: A data migration apparatus and method for performing low cost data migration while preventing stoppages during migration of a job net between cloud services by acquiring an execution schedule of the job net, estimate execution time of each of the jobs, and further estimate volume copy time from a first to a second cloud service regarding each of the volumes to be used; calculate a starting time of each job on the basis of the execution schedule and time of each job; and calculate a starting time of volume copy on the basis of the calculated starting time of day of each job and the volume copy time of each volume, so that the volume copy of each volume from the first to the second cloud service will start at the starting time of the volume copy which has been calculated regarding each relevant volume.

公开(公告)号：US20180203784A1

公开(公告)日：2018-07-19

申请号：US15743516

申请日：2016-03-28

Applicant: HITACHI, LTD.

Inventor： Jun MIZUNO ,  Takashi TAMESHIGE

IPC: G06F11/34 ,  G06F9/455 ,  G06F11/20 ,  G06F11/30 ,  G06F11/14

CPC classification number: G06F11/3409 ,  G06F9/45558 ,  G06F11/1438 ,  G06F11/2023 ,  G06F11/2025 ,  G06F11/3006 ,  G06F11/301 ,  G06F11/3055 ,  G06F11/3404 ,  G06F11/3433 ,  G06F2009/4557 ,  G06F2009/45591 ,  G06F2201/815

Abstract: A management computer detecting signs of performance degradation even when virtual computing units are generated and destroyed repeatedly over a short period of time. The management computer manages an information system including one or more computers and one or more virtual computing units virtually implemented on the one or more computers, while detecting signs of degradation of the performance. The management computer acquires operating information from all virtual computing units belonging to one or more autoscaling groups, which generates from the operating information, reference values, each of which is used for detecting signs of degradation of the performance of one of the one or more autoscaling groups, and detects signs of degradation of the performance in each autoscaling group using both the reference values generated and the operating information about the virtual computing units as acquired.

公开(公告)号：US20190205129A1

公开(公告)日：2019-07-04

申请号：US16303248

申请日：2016-09-01

Applicant: HITACHI, LTD.

Inventor： Takashi TAMESHIGE ,  Jun MIZUNO ,  Junji KINOSHITA ,  Yuichi TAGUCHI ,  Shigeru TACHIKAWA ,  Yuji HIROSE ,  Mitsuhiro NAGATA

IPC: G06F8/77 ,  G06F9/54

CPC classification number: G06F8/77 ,  G06F9/542 ,  G06F9/546 ,  G06F11/07 ,  G06F11/36

Abstract: A management system constructs management information indicating that log chunks and issue chunks extracted from a first system managing log information and issue information output by a process related to a first team for a program to be developed are linked. The management system searches, from the management information, a log message group compatible with a designated log message group that is one or more log messages related to the issue by log pattern matching using the designated log message group in a case of receiving an inquiry with which the designated log message group is associated from the second system. The management system displays, on the second system, a response containing a handling method represented by handling method information corresponding to the found log message group.

公开(公告)号：US20200065316A1

公开(公告)日：2020-02-27

申请号：US16288490

申请日：2019-02-28

Applicant: Hitachi, Ltd.

Inventor： Jun MIZUNO ,  Takashi TAMESHIGE ,  Soichi TAKASHIGE ,  Nobuhiro MAKI

IPC: G06F16/27 ,  G06F3/06 ,  H04L29/08

Abstract: The present invention ensures improving responsiveness in a P2P type distributed database system that includes a plurality of node computers capable of storing management target data in storage devices. The storage devices include a first type storage device having a high input/output performance and a second type storage device having a low input/output performance. There is provided the storage devices that store KeySpace management tables including response count information indicative of a count of the node computers from which the identical management target data are to be read. The identical management target data are required to respond to a read request of the management target data. The node computers by a count indicated by the response count information and capable of storing the management target data in the first type storage devices among the plurality of node computers are determined as storage destinations when a CPU receives a write request of new management target data. The determined node computers are caused to store the management target data.

公开(公告)号：US20190065334A1

公开(公告)日：2019-02-28

申请号：US15905235

申请日：2018-02-26

Applicant: HITACHI, LTD.

Inventor： Emiko KOBAYASHI ,  Jun MIZUNO ,  Takashi TAMESHIGE ,  Nobuhiro MAKI ,  Junji KINOSHITA

IPC: G06F11/30 ,  G06F9/54

Abstract: By selecting, as a monitoring API, an API which does not involve modifying information when executing a request, from APIs called by an AP to be monitored, transmitting a pseudo-request to the monitoring API, and receiving a response to the request, a monitoring node for determining whether or not the monitoring API is operating normally is created and is included in the AP.