公开(公告)号：US12204775B1

公开(公告)日：2025-01-21

申请号：US18609786

申请日：2024-03-19

Applicant: Hitachi, Ltd.

Inventor： Masahiro Tsuruya ,  Tomohiro Yoshihara ,  Norio Shimozono

IPC: G06F3/00 ,  G06F3/06

Abstract: A storage system with reduced power consumption includes a storage apparatus that saves data in accordance with a data input/output request from a host or outputs the saved data, the storage system including a plurality of components each configured to operate in a first power mode or at least one second lower power mode in a switchable manner, a condition monitoring module monitoring each of the plurality of components, and a power mode control module that determines a power mode of at least one component to be the second power mode, according to a processing load related to each of the plurality of components and which corresponds to a result of monitoring by the condition monitoring module, and operates the at least one particular component in the power saving mode, in which the plurality of components perform mutual control with the storage apparatus in accordance with the data input/output request.

公开(公告)号：US11301159B2

公开(公告)日：2022-04-12

申请号：US16996074

申请日：2020-08-18

Applicant: Hitachi, Ltd.

Inventor： Hirotoshi Akaike ,  Koji Hosogi ,  Norio Shimozono ,  Sadahiro Sugimoto ,  Nobuhiro Yokoi ,  Ryosuke Tatsumi

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：US09977813B2

公开(公告)日：2018-05-22

申请号：US14651688

申请日：2013-01-17

Applicant: Hitachi, Ltd.

Inventor： Ryosuke Tatsumi ,  Tadato Nishina ,  Norio Shimozono

IPC: G06F17/30 ,  G06F3/06

CPC classification number: G06F17/30371 ,  G06F3/0608 ,  G06F3/0647 ,  G06F3/067 ,  G06F17/30368 ,  G06F17/30876

Abstract: As a method for migrating data of a volume adopting a snapshot function to a new storage system, in order to perform migration without depending on a method for compressing snapshot data of a migration source storage system, and without stopping transmission and reception of data between the host computer and the storage system, at first, after migrating data of a volume being the source of snapshot (PVOL), migration is performed sequentially from newer generations. At this time, migration target data of each SVOL is all the data within the migration source storage system. The SVOL data copied to a migration destination storage is compared with one-generation-newer SVOL data within the migration destination storage system, and based on the comparison result, a difference management information is created. If there is difference, a VOL allocation management table is updated, and difference data is stored in the area allocated within the pool.

公开(公告)号：US09122399B2

公开(公告)日：2015-09-01

申请号：US14241784

申请日：2013-04-18

Applicant: HITACHI, LTD.

Inventor： Tadato Nishina ,  Hiroaki Akutsu ,  Kohei Tatara ,  Norio Shimozono

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0644 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/0688 ,  G06F2003/0695

Abstract: A storage system includes: a storage device including a recording medium that stores data and a device controller that executes addition processing involving a change of state of the data with respect to the data; and a storage controller that controls input and output of data for the storage device. The storage controller transmits, to the storage device, determination information that can be utilized by the device controller for determining whether or not to execute the addition processing along with input-output processing relating to input-output target data. The device controller controls execution of the addition processing with respect to the input-output target data based on the determination information transmitted from the storage controller.

Abstract translation: 存储系统包括：包括存储数据的记录介质的存储设备和执行涉及数据相对于数据的状态改变的加法处理的设备控制器; 以及存储控制器，其控制用于存储设备的数据的输入和输出。 存储控制器向存储装置发送可由设备控制器利用的用于确定是否执行加法处理以及与输入 - 输出目标数据相关的输入输出处理的确定信息。 设备控制器基于从存储控制器发送的确定信息来控制关于输入 - 输出目标数据的相加处理的执行。

公开(公告)号：US10761764B1

公开(公告)日：2020-09-01

申请号：US16793855

申请日：2020-02-18

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：US10089033B2

公开(公告)日：2018-10-02

申请号：US15122533

申请日：2014-04-24

Applicant: HITACHI, LTD.

Inventor： Akira Yamamoto ,  Junji Ogawa ,  Norio Shimozono ,  Yoshihiro Yoshii ,  Kazuei Hironaka ,  Atsushi Kawamura

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F3/06 ,  G06F12/084 ,  G06F12/0866 ,  G06F12/0871 ,  G06F12/0873 ,  G06F12/1009 ,  G06F12/109 ,  G06F12/02 ,  G06F11/10 ,  G06F17/30

Abstract: A storage system according to the present invention has a plurality of flash packages equipped with a deduplication function. When a storage controller transmits a write data and a feature value of write data to a flash package, the flash package compares contents of the write data with data having a same feature value as the feature value of the write data. As a result of the comparison, if there is no corresponding data, the write data is stored in the flash memory, but if there is a corresponding data, the new data will not be stored. Thus, a greater number of data can be stored in the flash memory while preventing deterioration of performance.

公开(公告)号：US09348704B2

公开(公告)日：2016-05-24

申请号：US14426790

申请日：2013-12-24

Applicant: Hitachi, Ltd.

Inventor： Makio Mizuno ,  Norio Shimozono ,  Sadahiro Sugimoto ,  Naoya Okada

IPC: G06F12/00 ,  G06F11/14 ,  G06F12/08 ,  G06F3/06

CPC classification number: G06F11/1451 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0685 ,  G06F3/0689 ,  G06F11/14 ,  G06F12/0802 ,  G06F12/0866 ,  G06F2201/885 ,  G06F2212/1032

Abstract: A storage system 100 includes a storage apparatus 125 and a storage controller 115 configured to control the storage apparatus. The storage controller adds a predetermined flag 425 to every predetermined size of data requested by a host computer to be written to the storage system, and stores the resultant data in a cache memory 278C. Upon detecting a predetermined trigger for saving, the storage controller stores, in a nonvolatile memory 284, data with the flag added thereto out of the data stored in the cache memory. The storage controller detects, as unsaved data information 620, a data size and a storage location for data with no flag added thereto out of the data on the cache memory, and stores the detected unsaved data information in the nonvolatile memory in association with the data with the flag added thereto.

Abstract translation: 存储系统100包括被配置为控制存储装置的存储装置125和存储控制器115。 存储控制器将预定标志425添加到要由主计算机请求写入存储系统的每个预定大小的数据，并将结果数据存储在高速缓冲存储器278C中。 在检测到用于保存的预定触发器时，存储控制器在非易失性存储器284中将存储在高速缓存存储器中的数据中添加有标志的数据存储在存储器284中。 作为未保存的数据信息620，存储控制器将高速缓冲存储器中的数据中没有标记的数据的数据大小和存储位置检测出来，并将检测到的未保存的数据信息与数据相关联地存储在非易失性存储器中 加上标志。

公开(公告)号：US20140317340A1

公开(公告)日：2014-10-23

申请号：US14241784

申请日：2013-04-18

Applicant: HITACHI LTD.

Inventor： Tadato Nishina ,  Hiroaki Akutsu ,  Kohei Tatara ,  Norio Shimozono

IPC: G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0644 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/0688 ,  G06F2003/0695

Abstract: A storage system includes: a storage device including a recording medium that stores data and a device controller that executes addition processing involving a change of state of the data with respect to the data; and a storage controller that controls input and output of data for the storage device. The storage controller transmits, to the storage device, determination information that can be utilized by the device controller for determining whether or not to execute the addition processing along with input-output processing relating to input-output target data. The device controller controls execution of the addition processing with respect to the input-output target data based on the determination information transmitted from the storage controller.

Abstract translation: 存储系统包括：包括存储数据的记录介质的存储设备和执行涉及数据相对于数据的状态改变的加法处理的设备控制器; 以及存储控制器，其控制用于存储设备的数据的输入和输出。 存储控制器向存储装置发送可由设备控制器利用的用于确定是否执行加法处理以及与输入 - 输出目标数据相关的输入输出处理的确定信息。 设备控制器基于从存储控制器发送的确定信息来控制关于输入 - 输出目标数据的相加处理的执行。

公开(公告)号：US12204799B2

公开(公告)日：2025-01-21

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: G06F12/00 ,  G06F3/06 ,  G06F12/02

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：US12153518B2

公开(公告)日：2024-11-26

申请号：US18112675

申请日：2023-02-22

Applicant: Hitachi, Ltd.

Inventor： Kenichi Betsuno ,  Norio Shimozono ,  Tomohiro Yoshihara

IPC: G06F3/06 ,  G06F12/02 ,  G06F12/08

Abstract: Logical hierarchies include an append hierarchy in a storage device. The storage device writes user data received in the append hierarchy to a free area, select a garbage collection operation mode for a first logical area in the append hierarchy from operation modes including first and second operation modes. Conditions of executing the garbage collection in the first operation mode include a capacity of the free area in the append hierarchy being less than a threshold, and an amount of garbage that is invalid data after update in the first logical area being equal to or greater than a threshold. Conditions of executing the garbage collection in the second operation mode include the amount of garbage in the first logical area being equal to or greater than a threshold value, while excluding the condition of the capacity of the free area in the append hierarchy.