公开(公告)号：US20170075615A1

公开(公告)日：2017-03-16

申请号：US15122770

申请日：2014-03-26

Applicant: HITACHI, LTD.

Inventor： Miho IMAZAKI ,  Norio SIMOZONO ,  Junji OGAWA ,  Tomohiro YOSHIHARA ,  Akira YAMAMOTO ,  Hiroaki AKUTSU

IPC: G06F3/06

CPC classification number: G06F3/0631 ,  G06F3/06 ,  G06F3/0604 ,  G06F3/0665 ,  G06F3/0683 ,  G06F11/108 ,  G06F2212/7208

Abstract: A second virtual volume having a plurality of second virtual areas is a clone of a first virtual volume having a plurality of first virtual areas. A first real area is allocated from a pool of real areas and based on storage devices to the first virtual volume. A storage controller allocates a second real area to the second virtual area before a write occurs in the second virtual area corresponding to the first virtual area to which the first real area is allocated. A physical area is allocated to a logical area corresponding to the first real area in each storage device, and data based on user data stored in the first real area is stored in the physical area. Each storage device allocates the physical area allocated to the logical area corresponding to the first real area to a logical area corresponding to the second real area.

Abstract translation: 具有多个第二虚拟区域的第二虚拟卷是具有多个第一虚拟区域的第一虚拟卷的克隆。 第一个真实区域从实际池区域分配，并基于存储设备分配给第一个虚拟卷。 存储控制器在与分配有第一实际区域的第一虚拟区域对应的第二虚拟区域中发生写入之前，向第二虚拟区域分配第二实际区域。 将物理区域分配给与每个存储装置中的第一实际区域对应的逻辑区域，并且基于存储在第一实际区域中的用户数据的数据被存储在物理区域中。 每个存储设备将分配给与第一实际区域相对应的逻辑区域的物理区域分配给与第二实际区域对应的逻辑区域。

公开(公告)号：US20160139851A1

公开(公告)日：2016-05-19

申请号：US15000475

申请日：2016-01-19

Applicant: HITACHI, LTD.

Inventor： Yoshiki KANO ,  Akira YAMAMOTO

IPC: G06F3/06

CPC classification number: G06F3/0644 ,  G06F3/0605 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/2087 ,  G06F12/02 ,  G06F12/0223

Abstract: Data migration includes copying between normal volumes and thin provisioned volumes. Data in a normal volume can be copied to a thin provisioned volume. Alternatively, data structures can be provided to facilitate converting a normal volume into a thin provisioned volume without actual copying of data. Copying from a thin provisioned volume to a normal volume is also disclosed.

Abstract translation: 数据迁移包括在正常卷和精简配置卷之间复制。 正常卷中的数据可以复制到精简配置卷。 或者，可以提供数据结构以便于将正常音量转换为精简配置音量而无需实际复制数据。 还公开了从精简配置体积复制到正常体积。

公开(公告)号：US20160132271A1

公开(公告)日：2016-05-12

申请号：US14772887

申请日：2013-07-26

Applicant: HITACHI, LTD.

Inventor： Masanori TAKADA ,  Nobuhiro YOKOI ,  Sadahiro SUGIMOTO ,  Akira YAMAMOTO

IPC: G06F3/06

CPC classification number: G06F3/0644 ,  G06F3/0604 ,  G06F3/061 ,  G06F3/0659 ,  G06F3/0671 ,  G06F3/0673

Abstract: In a computer system having a storage controller that receives a read request or a write request, a processor is configured to send to an interface device either a read-support indication, which is an indication to execute either all or a portion of read processing for read-data of the read request, or a write-support indication, which is an indication for either all or a portion of write processing for write-data of the write request. Then, the interface device, in accordance with either the read-support indication or the write-support indication, is configured to execute either all or a portion of the read processing for the read-data, or all or a portion of the write processing for the write-data, and to send to a host computer either a first response to the effect that the read processing has been completed, or a second response that the write processing has been completed.

Abstract translation: 在具有接收读取请求或写入请求的存储控制器的计算机系统中，处理器被配置为向接口设备发送读取支持指示，该读取支持指示是执行全部或一部分读取处理的指示， 读取请求的读取数据或写入支持指示，其是写入请求的写入数据的写入处理的全部或一部分的指示。 然后，根据读取支持指示或写入支持指示的接口设备被配置为执行读取数据的全部或一部分读取处理，或全部或一部分写入处理 并且向主计算机发送对读取处理已经完成的第一响应或者写入处理已经完成的第二响应。

公开(公告)号：US20160117127A1

公开(公告)日：2016-04-28

申请号：US14989583

申请日：2016-01-06

Applicant: Hitachi, Ltd.

Inventor： Akira YAMAMOTO ,  Miho IMAZAKI

IPC: G06F3/06

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0607 ,  G06F3/0608 ,  G06F3/0629 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689

Abstract: One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.

Abstract translation: 一个或多个存储系统连接到包括多个存储设备的一个或多个存储盒。 由一个或多个存储盒提供的多个存储区域包括作为分配给虚拟卷的存储区域的分配区域和作为未分配给任何逻辑卷的存储区域的空白区域。 在一个或多个存储系统中设置与多个存储区域相对应的多个所有者权限。 具有空区域所有者权限的存储系统通过分配空白区域将空白区域改变为所分配的区域。 在执行配置改变（相对于存储系统的数量的存储盒的数量的相对变化）的情况下，在配置改变之后存在的第一存储系统在第一存储系统中设置更多或 在配置更改之前已经分配给第一个存储系统的所有者权限较所有者权限更少。

公开(公告)号：US20140379974A1

公开(公告)日：2014-12-25

申请号：US14483808

申请日：2014-09-11

Applicant: Hitachi, Ltd.

Inventor： Akira YAMAMOTO ,  Masayuki YAMAMOTO

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0608 ,  G06F3/064 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0688

Abstract: A storage system has a plurality of flash packages, and a storage controller for receiving a write request from a host and sending a write-data write request based on data conforming to this write request to a write-destination flash package. A virtual capacity, which is larger than the physical capacity of the flash package, is defined in the storage controller. The storage system compresses the write data, and writes the compressed write data to the write-destination flash chip.

Abstract translation: 存储系统具有多个闪存封装，以及存储控制器，用于从主机接收写入请求，并且基于符合该写入请求的数据将写入数据写入请求发送到写入目的地闪存封装。 在存储控制器中定义大于闪存包的物理容量的虚拟容量。 存储系统压缩写入数据，并将压缩的写入数据写入到写入目的地闪存芯片。

公开(公告)号：US20140115289A1

公开(公告)日：2014-04-24

申请号：US14144240

申请日：2013-12-30

Applicant: HITACHI, LTD.

Inventor： Noboru MORISHITA ,  Hideo SAITO ,  Yoshiaki EGUCHI ,  Masayuki YAMAMOTO ,  Akira YAMAMOTO

IPC: G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/0608 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/0644 ,  G06F3/0665 ,  G06F3/067

Abstract: A second storage maps a migration source volume to a virtual volume of a migration destination volume according to storage virtualization technology. A host system including a host switches an access path from an access path to the migration source volume to an access path to the migration destination volume. The second storage executes copy processing of migrating, from the migration source volume to the migration destination volume, data in an assigned area of a virtual volume according to thin provisioning of the migration source volume based on the information contained in the first thin provisioning information in the first storage, and copying that data from the migration destination volume to a virtual volume according to thin provisioning of a copy destination volume in the second storage. The second storage associates the virtual volume of the copy destination volume with the migration destination volume in substitute for the original virtual volume.

Abstract translation: 根据存储虚拟化技术，第二个存储将迁移源卷映射到迁移目标卷的虚拟卷。 包括主机的主机系统将从访问路径到迁移源卷的访问路径切换到迁移目的地卷的访问路径。 所述第二存储器执行复制处理，所述复制处理根据所述第一精简配置信息中包含的信息，执行从所述迁移源卷迁移到所述迁移目的地卷的虚拟卷的分配区域中的数据， 第一存储器，以及根据第二存储器中的复制目的地卷的精简配置将数据从迁移目的地卷复制到虚拟卷。 第二个存储将复制目标卷的虚拟卷与迁移目标卷相关联，以替代原始虚拟卷。

公开(公告)号：US20240348683A1

公开(公告)日：2024-10-17

申请号：US18461726

申请日：2023-09-06

Applicant: Hitachi, Ltd.

Inventor： Misato YOSHIDA ,  Takahiro YAMAMOTO ,  Katsuto SATO ,  Akira YAMAMOTO ,  Yoshinori OHIRA

IPC: H04L67/1012 ,  H04L67/1008 ,  H04L67/1097

CPC classification number: H04L67/1012 ,  H04L67/1008 ,  H04L67/1097

Abstract: An object is to effectively use resources of a plurality of storage nodes.
A storage system includes a plurality of storage nodes. The storage system includes: a management unit configured to manage the plurality of storage nodes. Each of the plurality of storage nodes is configured to accumulate credits on a condition that a processing load is within a predetermined range and perform burst in which processing is performed with a load exceeding the predetermined range by consuming the credits. The management unit manages the credits of each storage node, determines a trigger of burst of predetermined storage processing based on an accumulation state of the credits in the plurality of storage nodes related to the storage processing, and executes, when the credits are accumulated in the plurality of storage nodes related to the predetermined storage processing, the predetermined storage processing by the burst by consuming the accumulated credits.

公开(公告)号：US20230153008A1

公开(公告)日：2023-05-18

申请号：US17946728

申请日：2022-09-16

Applicant: Hitachi, Ltd.

Inventor： Misato YOSHIDA ,  Hideo SAITO ,  Takaki NAKAMURA ,  Akira YAMAMOTO ,  Naruki KURATA ,  Takahiro YAMAMOTO

IPC: G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/067 ,  G06F3/0604

Abstract: Even without a first storage system does not have compatibility with a second storage system that is different from a default cloud storage service which can be accessed by a cloud computer service as a migration destination of a computer instance, a volume in the first storage system can be migrated to the second storage system. A system causes a migration tool of a cloud computer to migrate, from a first storage system to the cloud computer, a system volume storing an image of an OS for configuring a computer instance to be migrated, and a data volume storing data used by the OS, and creates a mapping volume, which has been mapped to the data volume migrated to the cloud computer with the migration tool, in a second storage system, and sets a path of data input/output from the computer instance to the mapping volume in the computer instance.

公开(公告)号：US20230021108A1

公开(公告)日：2023-01-19

申请号：US17693462

申请日：2022-03-14

Applicant: Hitachi, Ltd.

Inventor： Akira YAMAMOTO ,  Akifumi SUZUKI

IPC: G06F16/174 ,  G06F16/172

Abstract: A file storage include: a processor that receives a write request for a file from an application, writes data of the file to a storage unit, then compresses the data of the written file, and writes the compressed data to the storage unit. The processor determines a compression algorithm to be used for the compression according to an amount of data, which is written during a predetermined time, of one or more written files.

公开(公告)号：US20220326869A1

公开(公告)日：2022-10-13

申请号：US17472837

申请日：2021-09-13

Applicant: Hitachi, Ltd.

Inventor： Ryosuke TATSUMI ,  Akira YAMAMOTO ,  Kazuki MATSUGAMI ,  Kenta SHINOZUKA

IPC: G06F3/06

Abstract: A storage system includes: a storage drive having a storage medium storing a data; and a plurality of storage control units having a processor, a memory, and a port to process the data input and output to and from the storage drive, in which information related to a list of the storage control units mounted on the storage system and a maximum number of the storage control units that can be mounted on the storage system is allowed to be stored, and in which, when the storage control unit is replaced, it is determined whether the configuration to be migrated from the storage control unit to be reduced to the storage control unit to be added is migrated directly or via another storage control unit based on the number of the mounted storage control units and the maximum number of the storage control units that can be mounted.