公开(公告)号：US20200210082A1

公开(公告)日：2020-07-02

申请号：US16814545

申请日：2020-03-10

Applicant: Hitachi, Ltd.

Inventor： Akira YAMAMOTO ,  Miho IMAZAKI

IPC: G06F3/06

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.

公开(公告)号：US20180004676A1

公开(公告)日：2018-01-04

申请号：US15540681

申请日：2015-01-13

Applicant: Hitachi, Ltd.

Inventor： Miho IMAZAKI ,  Akira YAMAMOTO ,  Yusuke NONAKA ,  Tomohiro YOSHIHARA ,  Shunji KAWAMURA

IPC: G06F12/109 ,  G06F11/10

CPC classification number: G06F12/109 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0665 ,  G06F3/0688 ,  G06F11/1076 ,  G06F12/0284 ,  G06F2212/1008 ,  G06F2212/262 ,  G06F2212/657

Abstract: A storage system manages correspondence relationships between physical addresses and logical addresses inside a storage device, as well as logical spaces provided by a plurality of storage devices, and when a determination is made as to whether first data and second data are stored in the same storage device in a case in which the first data and the second data are exchanged inside a logical space, and the determination is found to be affirmative, the storage device replaces the logical address corresponding to the first data with the logical address corresponding to the second data without changing the physical address of the physical area in which the first data is stored and the physical address of the physical area in which the second data is stored.

公开(公告)号：US20210263659A1

公开(公告)日：2021-08-26

申请号：US17314889

申请日：2021-05-07

Applicant: Hitachi, Ltd.

Inventor： Akira YAMAMOTO ,  Miho IMAZAKI

IPC: G06F3/06

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.

公开(公告)号：US20200210083A1

公开(公告)日：2020-07-02

申请号：US16814557

申请日：2020-03-10

Applicant: Hitachi, Ltd.

Inventor： Akira YAMAMOTO ,  Miho IMAZAKI

IPC: G06F3/06

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.

公开(公告)号：US20180121112A1

公开(公告)日：2018-05-03

申请号：US15546124

申请日：2016-02-24

Applicant: Hitachi, Ltd.

Inventor： Miho IMAZAKI ,  Masakuni AGETSUMA ,  Akira YAMAMOTO ,  Akira DEGUCHI

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/061 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067

Abstract: An instruction to associate a second logical volume with a second virtual storage, which is a migration destination of a first virtual storage that provides a first logical volume, is transmitted. The first virtual storage is a virtual storage to which a virtual resource provided by a virtual managing unit is allocated. A copy instruction, which is an instruction to copy data from either one of the first logical volume and a copy source logical volume of the first logical volume to the second logical volume is transmitted. When copy completion, which is completion of the data copy to the second logical volume, is detected, an erasing instruction, which is an instruction to erase the first virtual storage, is transmitted to the virtual managing unit.

公开(公告)号：US20190012270A1

公开(公告)日：2019-01-10

申请号：US16081876

申请日：2016-06-15

Applicant: HITACHI, LTD.

Inventor： Miho IMAZAKI ,  Akira YAMAMOTO ,  Tomohiro YOSHIHARA ,  Kohei TATARA

IPC: G06F12/126 ,  G06F12/0804

Abstract: An information processing system including a processor, a memory, and a plurality of drives, wherein when a write request of new data is received, the processor stores the new data in the memory, transmits a response for the write request to a transmission source of the write request, reads old data updated by the new data from a first drive of the plurality of drives and old parity related to the old data from a second drive of the plurality of drives according to transmission of the response, store the old data and the old parity in the memory, generates new parity related to the new data from the new data, the old data, and the old parity stored in the memory, and stores the new data in the first drive to store the new parity in the second drive.

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：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：US20140359238A1

公开(公告)日：2014-12-04

申请号：US14459846

申请日：2014-08-14

Applicant: Hitachi, Ltd.

Inventor： Miho IMAZAKI ,  Yusuke NONAKA

IPC: G06F3/06

CPC classification number: G06F3/0644 ,  C09K5/16 ,  G06F3/0614 ,  G06F3/065 ,  G06F3/0683 ,  G06F2003/0695

Abstract: The storage apparatus comprises a storage unit storing data read/written by the host apparatus, and a control unit controlling writing of the data to the storage unit. The control unit configures one or more pools from the storage unit and divides one of the pools into first pages having an area of a first size and divides the first pages into second pages having the second area, and manages the pages, manages a data storage area of a first volume storing the data by using the first-size area and manages a data storage area of a second volume storing the data by using the second-size area, assigns the first page to the data storage area of the first volume, and assigns the first page in units of the second volume and assigns the second page obtained by dividing the first page to the data storage area of the second volume.

Abstract translation: 存储装置包括存储由主机设备读取/写入的数据的存储单元，以及控制单元，用于控制将数据写入存储单元。 所述控制单元从所述存储单元配置一个或多个池，并且将所述池中的一个划分为具有第一大小的区域的第一页，并将所述第一页划分为具有所述第二区域的第二页面，并且管理所述页面，管理数据存储 通过使用第一尺寸区域存储数据的第一卷的区域，并且通过使用第二尺寸区域来管理存储数据的第二卷的数据存储区域，将第一页面分配给第一卷的数据存储区域， 并以第二卷为单位分配第一页，并将通过将第一页划分到第二卷的数据存储区获得的第二页。