公开(公告)号：US20240104064A1

公开(公告)日：2024-03-28

申请号：US18176517

申请日：2023-03-01

Applicant: Hitachi, Ltd.

Inventor： Yuto KAMO ,  Mitsuo HAYASAKA ,  Norio SHIMOZONO

IPC: G06F16/182 ,  G06F3/06

CPC classification number: G06F16/183 ,  G06F3/0607 ,  G06F3/0617 ,  G06F3/0658 ,  G06F3/0683

Abstract: The present invention makes it possible to maintain availability and scale out file performance, while suppressing costs. A unified storage has a plurality of controllers and a storage apparatus (storage device unit), and each of the plurality of controllers is equipped with one or more main processors (CPU) and one or more channel adapters (FE-I/F). Each main processor causes a block storage control program to operate and thereby process data inputted to and outputted from the storage apparatus, each channel adapter has a processor (CPU) that performs transmission and reception to and from a main processor after receiving an access request, and the processors in the plurality of channel adapters cooperate to cause a distributed file system to operate, and distributively store data, written as a file, to the plurality of controllers.

公开(公告)号：US20170123679A1

公开(公告)日：2017-05-04

申请号：US15128089

申请日：2014-04-22

Applicant: HITACHI, LTD.

Inventor： Yoshihiro YOSHII ,  Kazuei HIRONAKA ,  Akira YAMAMOTO ,  Norio SHIMOZONO

IPC: G06F3/06 ,  G06F12/0802

CPC classification number: G06F3/0608 ,  G06F3/06 ,  G06F3/0619 ,  G06F3/0661 ,  G06F3/0685 ,  G06F12/04 ,  G06F12/0802 ,  G06F12/0804 ,  G06F12/0868 ,  G06F12/1009 ,  G06F2212/1016 ,  G06F2212/1024 ,  G06F2212/262 ,  G06F2212/312 ,  G06F2212/401 ,  G06F2212/60

Abstract: A storage system is adapted for efficiency by defining beforehand a first size, which is the maximum data that can be read at one time, a second size, which is equal to or less than the first size, and a third size, which is a factor of the first size. A controller provides a virtual volume comprising a plurality of virtual pages. Upon receiving a write request, the controller allocates a pool area comprising a plurality of stripes of the first size, stores the write request data in a cache, and when writing the data stored in the cache to the storage device, compresses the data in accordance with the third size unit, selects a storage area in accordance with the second size unit, and writes the compressed data to the selected second size storage area sequentially from the start address of a free area without leaving spaces therebetween.

公开(公告)号：US20240419629A1

公开(公告)日：2024-12-19

申请号：US18443860

申请日：2024-02-16

Applicant: Hitachi, Ltd.

Inventor： Takayuki FUKATANI ,  Norio SHIMOZONO ,  Mitsuo HAYASAKA ,  Yuto KAMO

IPC: G06F16/11 ,  G06F16/182

Abstract: A unified storage system is capable of reducing hardware costs by effectively utilizing a previously used storage controller when upgrading a storage controller in a unified storage and an upgrade method for the unified storage system is possible. The unified storage system A includes: a storage node having a controller; and a storage device configured to store data. In the unified storage system, the unified storage system supports block access and file access, the unified storage system includes a file system, which is configured to process file access from a client and perform block access to the controller, the controller processes block access from the client and block access from the file system to access the storage device which stores the data, and the unified storage system is capable of adding a network-connected information apparatus and is capable of migrating the file system to the information apparatus.

公开(公告)号：US20220164146A1

公开(公告)日：2022-05-26

申请号：US17472845

申请日：2021-09-13

Applicant: Hitachi, Ltd.

Inventor： Masahiro TSURUYA ,  Norio SHIMOZONO ,  Akira YAMAMOTO ,  Kentaro SHIMADA ,  Takashi NAGAO

IPC: G06F3/06

Abstract: A storage system includes: a controller which includes a processor and a memory; and one or more storage devices. The controller sets a plurality of logical volumes, stores data related to a write request in the memory when the write request is received in the logical volume, and collectively compresses a plurality of pieces of data related to the write request in the memory and writes the compressed data to the storage device. When a plurality of pieces of data related to a plurality of the logical volumes that need to be written to the storage device exist in the memory, the controller selects the plurality of pieces of data in an identical logical volume, and collectively compresses the plurality of pieces of selected data and writes the compressed data in the storage device.

公开(公告)号：US20200379668A1

公开(公告)日：2020-12-03

申请号：US16996074

申请日：2020-08-18

Applicant: Hitachi, Ltd.

Inventor： Hirotoshi AKAIKE ,  Koji HOSOGI ,  Norio SHIMOZONO ,  Sadahiro SUGIMOTO ,  Nobuhiro YOKOI

IPC: G06F3/06 ,  G06F12/1009

Abstract: A storage system includes at least one drive chassis connected to at least one host computer via a first network, and a storage controller connected to the drive chassis, in which the storage controller instructs the drive chassis to create a logical volume, and the drive chassis creates a logical volume according to an instruction from the storage controller, provides a storage area of the storage system to the host computer, and receives an IO command from the host computer to the storage area of the storage system.

公开(公告)号：US20180018272A1

公开(公告)日：2018-01-18

申请号：US15540042

申请日：2015-01-28

Applicant: Hitachi, Ltd.

Inventor： Hirotoshi AKAIKE ,  Norio SHIMOZONO ,  Kazushi NAKAGAWA

IPC: G06F12/10

CPC classification number: G06F12/10 ,  G06F3/061 ,  G06F3/0635 ,  G06F3/0659 ,  G06F3/0688 ,  G06F12/0246 ,  G06F2212/657 ,  G06F2212/7201 ,  G06F2212/7202

Abstract: The processor provides a host computer with a logical volume based on a physical storage device. Based on a command from the host computer, the control device writes, into a memory, address information that associates a logical address in the logical volume with a device address in the physical storage device. The control device receives a command from the host computer and if it is determined that the command is a read command, identifies a first logical address designated by the command and determines whether or not the first logical address is included in the address information. If the first address is included in the address information, the control device specifies a first device address corresponding to the first logical address, reads read data stored in an area indicated by the first device address, and transmits the read data to the host computer.

公开(公告)号：US20170177485A1

公开(公告)日：2017-06-22

申请号：US15126006

申请日：2014-07-11

Applicant: HITACHI, LTD.

Inventor： Makio MIZUNO ,  Norio SHIMOZONO ,  Katsuya TANAKA

IPC: G06F12/0868 ,  H04L29/08 ,  G06F3/06

CPC classification number: G06F12/0868 ,  G06F3/06 ,  G06F3/0601 ,  G06F3/0604 ,  G06F3/0658 ,  G06F3/067 ,  G06F12/0806 ,  G06F2212/284 ,  H04L67/1097

Abstract: A storage system includes a plurality of controllers each including a processor module and a memory, and a relay unit to relay a communication between the processor modules. The relay unit executes assignment determination to determine one of the processor module of a first controller and the processor module of a second controller is a processor module processing a command stored in the memory. The first controller includes memory storing the command, and the second controller is any of the controllers other than the first controller. When the relay unit determines the command of the processor module of the first controller, the relay unit notifies storage location information of the command to the processor module of the first controller, and when the relay unit determines the command to be processed by the processor module of the second controller, the relay unit transfer the command to the second controller.

公开(公告)号：US20240295968A1

公开(公告)日：2024-09-05

申请号：US18368755

申请日：2023-09-15

Applicant: Hitachi, Ltd.

Inventor： Sadahiro SUGIMOTO ,  Norio SHIMOZONO ,  Tomohiro YOSHIHARA ,  Shintaro ITO

IPC: G06F3/06 ,  G06F12/0802

CPC classification number: G06F3/0619 ,  G06F3/0659 ,  G06F3/0673 ,  G06F12/0802

Abstract: A storage system includes a non-volatile storage device and a plurality of storage controllers that control reading and writing for the storage device, in which each of the plurality of storage controllers includes a processor and a memory, the storage controller stores a write request from a host for the storage device as cache data in the memory, returns a write completion response to the host after protecting the cache data in a first memory protection method or a second memory protection method, and destages the cache data into the storage device after the write completion response, and the storage controller switches between the first memory protection method and the second memory protection method to be used according to an operation state of another storage controller.

公开(公告)号：US20240231706A1

公开(公告)日：2024-07-11

申请号：US18244058

申请日：2023-09-08

Applicant: Hitachi, Ltd.

Inventor： Takaki MATSUSHITA ,  Kazuki MATSUGAMI ,  Akira DEGUCHI ,  Norio SHIMOZONO ,  Shinichi HAYASHI

IPC: G06F3/06 ,  G06F12/02

CPC classification number: G06F3/0665 ,  G06F3/065 ,  G06F12/0253 ,  G06F3/0604 ,  G06F3/0679

Abstract: A first node performs copy (virtual copy) of address mapping between a virtual volume and a pool to a first virtual volume to create a third virtual volume in the first node. A second node performs mapping from a first pool volume in the second node to the third virtual volume in the first node, links an address of the first pool volume, which is mapped to the third virtual volume, to an address of a second virtual volume in the second node on a one-to-one basis, and performs log-structured write of the data in the second virtual volume to a second pool volume in the second node.

公开(公告)号：US20160092490A1

公开(公告)日：2016-03-31

申请号：US14358860

申请日：2013-05-23

Applicant: HITACHI, LTD.

Inventor： Norio SHIMOZONO

IPC: G06F17/30

CPC classification number: G06F17/30371 ,  G06F3/0608 ,  G06F3/0652 ,  G06F3/067 ,  G06F17/30876

Abstract: A storage apparatus and data management method capable of utilizing storage resources effectively is proposed. A storage apparatus storing primary data and analysis data obtained based on the primary data as a result of the execution of specified analysis processing by an external computing system is designed so that metadata of the analysis data includes regeneratable attribute information indicating whether or not the corresponding analysis data can be regenerated by means of the analysis processing by the external computing system; and a control unit regularly or irregularly selects the analysis data, which satisfies a specified condition and can be regenerated, based on the metadata for each piece of the analysis data and deletes the selected analysis data from one or more storage devices.

Abstract translation: 提出了一种能够有效利用存储资源的存储装置和数据管理方法。 设计存储装置，其存储基于主数据获得的主数据和由外部计算系统进行的指定分析处理的结果的分析数据，使得分析数据的元数据包括可再生属性信息，该可再生属性信息是否指示对应分析 可以通过外部计算系统的分析处理来重新生成数据; 并且控制单元基于每条分析数据的元数据来定期或不规则地选择满足指定条件并且可以再生的分析数据，并从一个或多个存储设备中删除所选择的分析数据。