公开(公告)号：US20150363128A1

公开(公告)日：2015-12-17

申请号：US14761090

申请日：2013-03-18

Applicant: Hitachi, Ltd.

Inventor： Yusuke FUNAYA ,  Kazuhide AIKOH ,  Keisuke HATASAKI ,  Akihisa NAGAMI

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  H04L67/1097

Abstract: A management system manages at least a storage system. The management system decides two or more logical storage devices configuring a logical volume to be provided to an application. The management system decides two or more MPs that undertake processes on the two or more logical storage devices, respectively. The management system allocates the decided two or more MPs to the decided two or more logical storage devices such that one MP is allocated to one logical storage device.

Abstract translation: 管理系统至少管理一个存储系统。 管理系统决定配置要提供给应用的逻辑卷的两个或多个逻辑存储设备。 管理系统分别决定在两个或多个逻辑存储设备上进行处理的两个或多个MP。 管理系统将决定的两个或多个MP分配给所确定的两个或更多个逻辑存储设备，使得一个MP被分配给一个逻辑存储设备。

公开(公告)号：US20160132433A1

公开(公告)日：2016-05-12

申请号：US14767056

申请日：2013-07-29

Applicant: HITACHI LTD.

Inventor： Shinichi HAYASHI ,  Yusuke FUNAYA

IPC: G06F12/08 ,  G06F3/06

CPC classification number: G06F12/0888 ,  G06F3/0604 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/0649 ,  G06F3/067 ,  G06F3/0685 ,  G06F12/0866 ,  G06F2212/604

Abstract: A computer system according to the present invention is composed of a server 200 having a flash memory drive 204 for cache, a storage system 260 having storage tiers composed of an SSD 267 and an HDD 268, and a management server having a page tier determination program 503 for determining the storage tier to which data is to be stored. The page tier determination program 503 migrates data having a high read access rate out of the pages having a high cache rate to the flash memory drive 204 to a storage tier of the HDD 268, and confirms so that data is not stored in a duplicated manner to the flash memory drive 204 and the SSD 267. Further, the data having a relatively high write access rate is migrated to the storage tier of the SSD 267 so as to prevent deterioration of write process performance.

Abstract translation: 根据本发明的计算机系统由具有用于高速缓存的闪存驱动器204的服务器200，具有由SSD 267和HDD 268组成的存储层的存储系统260以及具有页面层确定程序的管理服务器 503，用于确定要存储数据的存储层。 页面层确定程序503将具有高缓存率的页面的具有高读取访问速率的数据迁移到闪速存储器驱动器204到HDD 268的存储层，并确认数据不以重复的方式存储 到闪速存储器驱动器204和SSD267。此外，将具有较高写入访问速率的数据迁移到SSD267的存储层，以防止写入处理性能的恶化。

公开(公告)号：US20180189126A1

公开(公告)日：2018-07-05

申请号：US15740078

申请日：2015-07-08

Applicant: HITACHI, LTD.

Inventor： Ken SUGIMOTO ,  Yusuke FUNAYA

IPC: G06F11/07 ,  G06F1/26

Abstract: A computer system comprises a computer being coupled to a device via a device interface. The device interface has an error status register and a link status register. An error isolation unit periodically obtains values of the error status register and the link status register. The error isolation unit determine whether an error occurs in the device; determine whether the error is an error to be isolated; determine whether the error is an error to be isolated based on values of the error status register and the link status register re-obtained after elapse of a predetermined time in a case of determining the error is not to be isolated. The error isolation unit detects the error as an error of a protocol caused by stop of a power supply in a case of determining the error is to be isolated.

公开(公告)号：US20220230119A1

公开(公告)日：2022-07-21

申请号：US17468797

申请日：2021-09-08

Applicant: Hitachi, Ltd.

Inventor： Yuxin LIANG ,  Masashi EGI ,  Yusuke FUNAYA ,  Masakazu TAKAHASHI

IPC: G06Q10/06 ,  G06F3/0482

Abstract: A computer has: a testing unit obtaining attribute values of attributes from an object to which a measure is implemented and an object to which the measure is not implemented, and calculating a change amount of the attribute values of the attributes due to the implementation of the measure and a test indicator for determining a significant difference of the change amount of the attribute values of the attributes due to the implementation of the measure; an experimental rule updating unit calculating a cumulative change amount indicating a temporal change amount of the attribute values of the attributes and a cumulative test indicator indicating a temporal test indicator of the attributes on the basis of a test result output from the testing unit, and accumulating data in which the identification information of the measure and the cumulative change amount and the cumulative test indicator are associated; and a display unit.

公开(公告)号：US20190173949A1

公开(公告)日：2019-06-06

申请号：US16323999

申请日：2017-03-22

Applicant: HITACHI, LTD.

Inventor： Hirofumi INOMATA ,  Yusuke FUNAYA ,  Tetsuro HONMURA

IPC: H04L29/08 ,  G06F9/54

Abstract: A data processing system includes a plurality of computers which include a processor and a memory, a storage device which is connected to the plurality of computers to store data, and a management computer controls the plurality of computers. The computer includes a node pool which can perform, stop, and delete one or more nodes. The node pool includes one or more first nodes which function as a data buffer. The management computer causes the node to measure a performance of data transmission between the data buffer and the storage device, determines a number of increased/decreased nodes on the basis of a measurement result of the performance, and notifies the node pool of a command of performing or deleting the first node according to the determined number of increased/decreased nodes. The node pool adjusts a number of the first nodes according to performing or deleting command.