公开(公告)号：US09389975B2

公开(公告)日：2016-07-12

申请号：US14819689

申请日：2015-08-06

Applicant: HITACHI, LTD.

Inventor： Hiroshi Arakawa ,  Akira Yamamoto

IPC: G06F11/16 ,  G06F11/10 ,  G06F11/34 ,  G06F11/20 ,  G06F3/06

CPC classification number: G06F11/2094 ,  G06F3/0619 ,  G06F3/0653 ,  G06F3/0689 ,  G06F11/1088 ,  G06F11/1662 ,  G06F11/2082 ,  G06F11/3485 ,  G06F2201/85 ,  G06F2211/1057

Abstract: A method of utilizing storage in a storage system comprises prioritizing a plurality of storage areas in the storage system for data recovery with different priorities; and performing data recovery of the storage system at an occurrence of a failure involving one or more of the storage areas in the storage system based on the priorities. Data recovery for one storage area having a higher priority is to occur before data recovery for another storage area having a lower priority in the storage system. In various embodiments, the prioritization is achieved by monitoring the access characteristics, or the priority is specified by the host or management computer based on the usage and/or importance of data stored in the storage system, or the priority is determined by the storage system based on the area assignment/release (i.e., usage) of thin provisioned volumes.

公开(公告)号：US09256524B2

公开(公告)日：2016-02-09

申请号：US13723648

申请日：2012-12-21

Applicant: HITACHI, LTD.

Inventor： Yoshiki Kano ,  Akira Yamamoto

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F12/02 ,  G06F3/06 ,  G06F11/20

CPC classification number: G06F3/0644 ,  G06F3/0605 ,  G06F3/0608 ,  G06F3/0647 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/2087 ,  G06F12/0223

Abstract: A storage system, coupled to an external storage system, manages a virtual volume, such as a thin provision volume. The storage system also manages a first logical device created by using storage area of internal storage devices and a second logical device created by using storage area of external storage devices in the external storage system. A storage area in the first logical device or the second logical device is allocated to the virtual volume after receiving a write request to the virtual volume. The storage system has advantage that a storage area in the first logical device and the second logical device can be managed uniformly in thin provisioning function of the storage system.

Abstract translation: 耦合到外部存储系统的存储系统管理虚拟卷，例如薄提供卷。 存储系统还管理通过使用内部存储设备的存储区域创建的第一逻辑设备和通过使用外部存储系统中的外部存储设备的存储区域而创建的第二逻辑设备。 第一逻辑设备或第二逻辑设备中的存储区域在接收到对虚拟卷的写入请求之后被分配给虚拟卷。 存储系统具有可以在存储系统的精简配置功能中统一管理第一逻辑设备和第二逻辑设备中的存储区域的优点。

公开(公告)号：US09146694B2

公开(公告)日：2015-09-29

申请号：US13695745

申请日：2012-10-18

Applicant: Hitachi, Ltd.

Inventor： Keiichi Matsuzawa ,  Akira Yamamoto

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F17/30 ,  G06F3/06 ,  G06F15/167 ,  G06F15/16

CPC classification number: G06F3/067 ,  G06F3/0607 ,  G06F3/0631 ,  G06F15/167 ,  G06F17/30203

Abstract: When processing data via multiple computers, the number of computers can be increased or decreased without actually moving the data assigned to the respective computers, and the data can be arranged and processed so as to enhance the performance of the system in response to the increase of the number of computers. A plurality of computers for performing data processing stores target data to be processed in a shared storage system, and when data processing is to performed, the shared storage divides the storage area storing data corresponding to the number of computers, and creates virtual data storage areas referring to a portion of the storage area for each computer, so as to enable each computer to refer to independent virtual data storage areas and to complete data processing.

Abstract translation: 当通过多台计算机处理数据时，可以增加或减少计算机的数量，而不会实际移动分配给各个计算机的数据，并且可以对数据进行排列和处理，以便响应于增加系统的性能而增强系统的性能 电脑数量。 用于执行数据处理的多个计算机存储在共享存储系统中要处理的目标数据，并且当执行数据处理时，共享存储器分割存储对应于计算机数量的数据的存储区域，并且创建虚拟数据存储区域 参考每个计算机的存储区域的一部分，以使每个计算机能够引用独立的虚拟数据存储区域并完成数据处理。

公开(公告)号：US20140189204A1

公开(公告)日：2014-07-03

申请号：US13812285

申请日：2012-12-28

Applicant: Hitachi, Ltd.

Inventor： Sadahiro Sugimoto ,  Akira Yamamoto ,  Shigeo Homma

IPC: G06F3/06 ,  G06F12/08

CPC classification number: G06F12/0866 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0655 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/067 ,  G06F3/068 ,  G06F12/0813 ,  G06F12/0871 ,  G06F12/0895 ,  G06F2212/1021 ,  G06F2212/1024 ,  G06F2212/152 ,  G06F2212/205 ,  G06F2212/21 ,  G06F2212/222 ,  G06F2212/225 ,  G06F2212/283 ,  G06F2212/313

Abstract: An information processing apparatus comprises a plurality types of cache memories having different characteristics, decides on a type of cache memory to be used as a data cache destination based on the access characteristics of cache-target data, and caches the data in the cache memory of the decided type.

Abstract translation: 信息处理设备包括具有不同特性的多种类型的高速缓冲存储器，基于高速缓存目标数据的访问特性来决定要用作数据高速缓存目的地的高速缓冲存储器的类型，并将数据高速缓存在 决定的类型。

公开(公告)号：US20140173390A1

公开(公告)日：2014-06-19

申请号：US14187498

申请日：2014-02-24

Applicant: Hitachi, Ltd., Intellectual Property Group

Inventor： Tomohiro Kawaguchi ,  Akira Yamamoto

IPC: G06F11/10

CPC classification number: G06F11/1004 ,  G06F11/006 ,  G06F11/1076 ,  G06F11/2094 ,  G06F2211/1059

Abstract: A system comprising a plurality of storage systems, which uses storage devices of multiple levels of reliability. The reliability as a whole system is increased by keeping the error code for the relatively low reliability storage disks in the relatively high reliability storage system. The error code is calculated using hash functions and the value is used to compare with the hash value of the data read from the relatively low reliability storage disks.

Abstract translation: 一种包括多个存储系统的系统，其使用多级可靠性的存储设备。 通过在相对较高的可靠性存储系统中保持相对较低的可靠性存储盘的错误代码来增加整个系统的可靠性。 使用散列函数计算错误代码，该值用于与从较低可靠性存储磁盘读取的数据的哈希值进行比较。

公开(公告)号：US08635400B2

公开(公告)日：2014-01-21

申请号：US13761251

申请日：2013-02-07

Applicant: Hitachi, Ltd.

Inventor： Akira Yamamoto ,  Sadahiro Sugimoto ,  Akihiko Araki ,  Masayuki Yamamoto

IPC: G06F12/00

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0616 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/0688 ,  G06F3/0689 ,  G06F12/0246 ,  G06F2212/7204 ,  G06F2212/7208 ,  G11C16/349

Abstract: A storage system 100, which has a plurality of flash packages 230, has a function for minimizing the imbalance of the number of deletions of each block inside the flash package 230 and a block-unit capacity virtualization function, and efficiently manifests lessening of the imbalance of the number of deletions and reduction in the data storage capacity for the entire storage system 100 by having functions for calculating the number of deletions and the data occupancy of each flash package 230, and for transferring data between the flash packages 230 on the basis of the values of these number of deletions and data occupancy.

Abstract translation: 具有多个闪存封装230的存储系统100具有用于最小化闪存封装230内的每个块的缺失数量的不平衡的功能和块单元容量虚拟化功能，并且有效地显示不平衡的减少 通过具有用于计算每个闪存封装230的删除次数和数据占用的功能以及用于基于闪存封装230在闪存封装230之间传送数据的功能来减少整个存储系统100的数据存储容量 这些数字的数量和数据占用的数值。

公开(公告)号：US11907746B2

公开(公告)日：2024-02-20

申请号：US17186850

申请日：2021-02-26

Applicant: Hitachi, Ltd.

Inventor： Akira Yamamoto ,  Hiroto Ebara ,  Takaki Nakamura ,  Yoshinori Ohira

IPC: G06F9/455 ,  G06F9/30 ,  G06F3/06

CPC classification number: G06F9/45558 ,  G06F3/0604 ,  G06F3/067 ,  G06F3/0631 ,  G06F3/0664 ,  G06F3/0689 ,  G06F9/30047 ,  G06F2009/4557 ,  G06F2009/45595

Abstract: A compound storage system including: a storage box having a plurality of storage devices; and a plurality of servers capable of executing one or more virtual machines. The storage box stores a logical volume. The virtual machines executable by the server include an application VM and a controller VM. When a predetermined situation occurs in which an application VM of a migration source server is migrated to a predetermined migration destination server, at least one processor of the one or more servers in the compound storage system migrates the application VM to the migration destination server, and migrates a control right of a logical volume used by the application VM to a controller VM of the migration destination server.

公开(公告)号：US11836391B2

公开(公告)日：2023-12-05

申请号：US17692269

申请日：2022-03-11

Applicant: Hitachi, Ltd.

Inventor： Hiroto Ebara ,  Akira Yamamoto ,  Yoshinori Ohira ,  Masakuni Agetsuma ,  Makio Mizuno ,  Takahiro Yamamoto

IPC: G06F3/06

CPC classification number: G06F3/067 ,  G06F3/0604 ,  G06F3/0655

Abstract: A distributed storage system includes one or a plurality of storage units including a plurality of physical storage devices, and a plurality of computers connected to the one or plurality of storage units via a communication network. When receiving a write request for a logical volume, the computer writes write data corresponding to the write request and redundant data for making the write data redundant in a plurality of physical storage devices of the storage unit in a distributed manner, and collectively controls writing of a journal of write data for managing a write history of the write data and a journal of redundant data for managing a write history of the redundant data.

公开(公告)号：US11836386B2

公开(公告)日：2023-12-05

申请号：US17881945

申请日：2022-08-05

Applicant: Hitachi, Ltd.

Inventor： Ryosuke Tatsumi ,  Akira Yamamoto ,  Kazuki Matsugami

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0607 ,  G06F3/067 ,  G06F3/0619 ,  G06F3/0622 ,  G06F3/0658 ,  G06F3/0679

Abstract: In a multi controller storage system, hardware and software are updated without interruption. The storage system including a node has storage control units each including a processor, a memory, and a port; and a storage drive, and the storage control units each request data access and transmit and receive data with respect to a host computer via the ports. The processors process input and output data from the host computer, the memories store the control information in order to access the data stored in the storage drive, and the storage system transmits the control information stored in the memories to another node, stores the control information in the memories of the storage control units, and sets ports of the other node in consideration of a relationship between the storage control units and the ports of the nodes, if the other node can access data relating to the control information.

公开(公告)号：US11829617B2

公开(公告)日：2023-11-28

申请号：US17191812

申请日：2021-03-04

Applicant: HITACHI, LTD.

Inventor： Akira Yamamoto ,  Hiroaki Akutsu ,  Tomohiro Kawaguchi

IPC: G06F3/00 ,  G06F3/06

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/067 ,  G06F3/0608 ,  G06F3/0664

Abstract: A virtual storage system according to an aspect of the present invention includes multiple storage systems each including: a storage controller that accepts a read/write request for reading or writing from and to a logical volume; and multiple storage devices. The storage system defines a pool that manages the storage device capable of allocating any of storage areas to the logical volume, and manages the capacity (pool capacity) of the storage areas belonging to the pool, and the capacity (pool available capacity) of unused storage areas in the pool. Furthermore, the storage system calculates the total value of the pool available capacities of the storage systems included in the virtual storage system, and provides the server with the total value as the pool available capacity of the virtual storage system.