公开(公告)号：US20180121091A1

公开(公告)日：2018-05-03

申请号：US15553180

申请日：2015-03-31

Applicant: HITACHI, LTD.

Inventor： Ken TOKORO ,  Yuta KAJIWARA

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689

Abstract: A storage apparatus and its control method capable of effectively preventing degradation of response performance with respect to I/O commands are proposed. Regarding the storage apparatus and its control method, a command processing unit having ownership of a logical device is set to that logical device in advance with respect to each logical device; a plurality of logical units are managed as one group and one logical unit in the group is defined as a logical unit representative of the group; and when according to a format of a command issued from a host system a logical unit targeted by the command is a logical unit other than the logical unit representative of the logical unit in the group, the command is transferred to the command processing unit having the ownership of the logical device associated with the logical unit targeted by the command.

公开(公告)号：US20150363331A1

公开(公告)日：2015-12-17

申请号：US14760303

申请日：2013-02-12

Applicant: HITACHI, LTD.

Inventor： Naoko YAMAMOTO ,  Ken TOKORO ,  Yasuhiko YAMAGUCHI

IPC: G06F12/12 ,  G06F13/30

CPC classification number: G06F12/122 ,  G06F12/0871 ,  G06F12/126 ,  G06F13/30 ,  G06F2212/50 ,  G06F2212/604

Abstract: To improve response performance of a storage control device. A storage control device 1 connected to a host computer 2 includes: a communication unit 1A that receives a command, to which a priority is set, from the host computer; a command executing unit 1B that executes the command received from the communication unit according to the priority; a cache memory 1C that is used by the command executing unit; a cache controller 1E that manages slots of the cache memory; and a plurality of storage devices 1D(1) and 1D(2) that stores data used by the host computer. The cache controller sets the priority to a slot that stores target data of the command and controls the data stored in the slot according to the priority.

Abstract translation: 提高存储控制设备的响应性能。 连接到主计算机2的存储控制装置1包括：从主计算机接收优先级设置的命令的通信单元1A; 命令执行单元1B，其根据优先级执行从通信单元接收的命令; 由命令执行单元使用的高速缓冲存储器1C; 高速缓存控制器1E，其管理高速缓存存储器的时隙; 以及存储由主计算机使用的数据的多个存储装置1D（1）和1D（2）。 高速缓存控制器将优先级设置为存储命令的目标数据的时隙，并根据优先级控制存储在时隙中的数据。

公开(公告)号：US20170017433A1

公开(公告)日：2017-01-19

申请号：US15121782

申请日：2014-06-11

Applicant: HITACHI, LTD.

Inventor： Yohey ISHIKAWA ,  Hideo SAITO ,  Tomohiro KAWAGUCHI ,  Ken TOKORO ,  Keishi TAMURA ,  Abhishek JOHRI

IPC: G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0644 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0673

Abstract: A storage system capable of realizing off-load data copy among storage subsystems constituting an HA pair configuration is provided. Therefore, in an HA pair configuration where a first volume of a first storage subsystem and a second volume of a second storage subsystem respectively respond a same virtual ID to the host, when the first or the second storage subsystem receives an instruction of off-load data copy specifying a virtual ID as the copy destination from the host computer, either a first volume or a second volume is selected as a copy source volume according to a position of a copy destination volume, and data is copied from the selected copy source volume to the copy destination volume.

Abstract translation: 提供一种能够实现构成HA对配置的存储子系统之间的卸载数据复制的存储系统。 因此，在HA对配置中，第一存储子系统的第一卷和第二存储子系统的第二卷分别对主机响应相同的虚拟ID，当第一或第二存储子系统接收到卸载指令 从主计算机指定虚拟ID作为复制目的地的数据副本，根据复制目的地卷的位置，将第一卷或第二卷选择为复制源卷，并且从所选复制源卷复制数据 到复制目的地卷。

公开(公告)号：US20170017421A1

公开(公告)日：2017-01-19

申请号：US15121875

申请日：2014-06-25

Applicant: HITACHI, LTD.

Inventor： Tomohiro TAKEI ,  Yohey ISHIKAWA ,  Hideo SAITO ,  Ken TOKORO ,  Keishi TAMURA ,  Tomohiro KAWAGUCHI

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0617 ,  G06F3/0635 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/16 ,  G06F12/00 ,  G06F12/0868 ,  G06F13/10

Abstract: A storage system according to one preferred embodiment of the present invention is composed of at least a first storage subsystem and a second storage subsystem. Write data from a host computer is duplicated to a first volume of the first storage subsystem and a second volume of the second storage subsystem, and the host computer is composed to be able to access both the first volume and the second volume. Attribute information which is information related to an order of write and/or write capability is set for each volume, and when an access command to the volume is received from the host computer, the storage subsystem determines whether I/O to the first volume and/or the second volume is required or not based on the attribute set for each volume.

Abstract translation: 根据本发明的一个优选实施例的存储系统由至少第一存储子系统和第二存储子系统组成。 从主计算机写入数据被复制到第一存储子系统的第一卷和第二存储子系统的第二卷，并且主计算机被构成为能够访问第一卷和第二卷。 对于每个卷设置与写入和/或写入能力有关的信息的属性信息，并且当从主计算机接收到对卷的访问命令时，存储子系统确定对第一卷的I / O和 /或基于为每个卷设置的属性需要或不需要第二个卷。

公开(公告)号：US20160259696A1

公开(公告)日：2016-09-08

申请号：US14424176

申请日：2014-04-04

Applicant: HITACHI, LTD.

Inventor： Yuta KAJIWARA ,  Tomoyuki KATO ,  Ken TOKORO

IPC: G06F11/20

CPC classification number: G06F11/201 ,  G06F11/2005 ,  G06F2201/805 ,  G06F2201/815 ,  G06F2201/85

Abstract: A computer system has a storage system including a first port and a second port, and a relay apparatus which couples the first port to an initiator apparatus. The storage apparatus stores relay apparatus information indicating a relay apparatus, and initiator information indicating an initiator apparatus. The storage apparatus establishes communications between the first port and a first relay apparatus, and based on communications with the relay apparatus recognizes the initiator apparatus with which the first relay apparatus has established communications. The storage apparatus also stores, in pathway information, a first pathway containing the first port, the first relay apparatus and the initiator apparatus. The storage apparatus creates a virtual port, which is a virtual port to which the first port is allocated, and when an initiator apparatus establishes communications with the virtual port, this apparatus adds a first virtual port associated pathway, in which the virtual port is associated with the first pathway, to the pathway information.

Abstract translation: 计算机系统具有包括第一端口和第二端口的存储系统，以及将第一端口耦合到启动器设备的中继设备。 存储装置存储表示中继装置的中继装置信息，以及表示发起装置的发起者信息。 存储装置建立第一端口和第一中继装置之间的通信，并且基于与中继装置的通信，识别第一中继装置已建立通信的启动器装置。 存储装置还在路径信息中存储包含第一端口，第一中继装置和启动器装置的第一路径。 存储装置创建虚拟端口，虚拟端口是分配第一端口的虚拟端口，并且当启动器装置建立与虚拟端口的通信时，该装置添加虚拟端口相关联的第一虚拟端口相关联的路径 与途径信息的第一个途径。