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公开(公告)号：US20200150866A1
公开(公告)日：2020-05-14
申请号：US16546366
申请日：2019-08-21
Applicant: Hitachi, Ltd.
Inventor： Ai SATOYAMA , Tomohiro KAWAGUCHI , Takaki MATSUSHITA
IPC: G06F3/06
Abstract: A storage system which stores a plurality of volumes and performs an I/O process on the volume includes a processor. The volume includes a first volume and a second volume which is copied from the first volume by snapshot. In a case where a write request is received, the processor determines whether a volume of a copy source related to a target volume of the write request is a volume of which a storage region is a valid region where a data amount reduction process is applied. Depending on a case where the volume of the copy source is a volume of which the storage region is a valid region or a case where the volume of the copy source is a volume of which the storage region is not a valid region, the processor switches and performs a process of creating the second volume related to the snapshot.
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公开(公告)号：US20190196911A1
公开(公告)日：2019-06-27
申请号：US16326788
申请日：2017-01-25
Applicant: HITACHI, LTD.
Inventor： Ai SATOYAMA , Tomohiro KAWAGUCHI , Akira DEGUCHI , Kazuei HIRONAKA
CPC classification number: G06F11/1092 , G06F3/06 , G06F3/0619 , G06F3/0629 , G06F3/0689 , G06F11/1096 , G06F12/0253
Abstract: A method for restoring lost data in a failed storage drive includes: detecting a trouble in a storage drive in a first RAID group of a first RAID type; in each of striped lines including host data which is lost due to a failure of the storage drive, restoring the host data, in the first RAID group; forming data of a striped line of a second RAID type from host data of a striped line of the first RAID group, the number of strips of the second RAID type being smaller than the number of strips of the first RAID type; configuring a second RAID group of the second RAID type by a storage drive included in the first RAID group excluding the failed storage drive; and storing data of a striped line of the second RAID type in the second RAID group.
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公开(公告)号：US20140281339A1
公开(公告)日：2014-09-18
申请号：US14291031
申请日：2014-05-30
Applicant: HITACHI, LTD.
Inventor： Ai SATOYAMA , Yoshiaki EGUCHI
IPC: G06F3/06
CPC classification number: G06F3/0647 , G06F3/0605 , G06F3/0619 , G06F3/0665 , G06F3/067 , G06F3/0689 , G06F12/02
Abstract: The computer system, during the course of executing an operation of dynamically allocating a storage area to a virtual volume in response to an access from a host system, detects where a balance of a storage capacity among a plurality of logical areas is disrupted, and subsequently moves a storage area among a plurality of logical areas to maintain balance of the storage capacity.
Abstract translation: 计算机系统在执行响应于来自主机系统的访问而向虚拟卷动态地分配存储区域的操作的过程中，检测多个逻辑区域之间的存储容量的平衡被中断，并且随后 移动多个逻辑区域中的存储区域，以保持存储容量的平衡。
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公开(公告)号：US20130332692A1
公开(公告)日：2013-12-12
申请号：US13964185
申请日：2013-08-12
Applicant: HITACHI, LTD.
Inventor： Ai SATOYAMA , Yoshiaki EGUCHI
IPC: G06F12/02
CPC classification number: G06F3/0647 , G06F3/0605 , G06F3/0619 , G06F3/0665 , G06F3/067 , G06F3/0689 , G06F12/02
Abstract: Provided is a computer system capable equalizing the storage capacity immediately and reliably to multiple real logical areas dynamically providing storage capacity to virtual logical areas.This computer system is characterized by, during the course of executing an operation of dynamically allocating a storage area to a virtual volume in response to an access from a host system, detecting an occasion where balance of a storage capacity among a plurality of logical areas is disrupted; and subsequently moving the storage area among a plurality of logical areas to maintain balance of the storage capacity.
Abstract translation: 提供了一种能够将存储容量立即可靠地均衡到多个真实逻辑区域的计算机系统，其将虚拟逻辑区域的存储容量动态地提供。 该计算机系统的特征在于，在执行向主机系统的访问响应于动态分配存储区域到虚拟卷的操作的过程中，检测多个逻辑区域之间的存储容量的平衡为 中断 并且随后在多个逻辑区域之间移动存储区域以保持存储容量的平衡。
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公开(公告)号：US20130282981A1
公开(公告)日：2013-10-24
申请号：US13920390
申请日：2013-06-18
Applicant: HITACHI, LTD.
Inventor： Daisuke ORIKASA , Ken MATSUDA , Yutaka TAKATA , Yoshiaki EGUCHI , Ai SATOYAMA , Yoichi MIZUNO
IPC: G06F3/06
CPC classification number: G06F3/0632 , G06F3/0608 , G06F3/061 , G06F3/0611 , G06F3/0647 , G06F3/0665 , G06F3/0685 , G06F3/0689 , G06F2003/0692
Abstract: Multiple storage area groups into which multiple storage areas provided by multiple storage devices are classified with reference to storage area attributes are managed. The multiple logical volumes to which, in accordance with a write request to at least one address included in multiple addresses in the logical volume, at least one storage area included in the multiple storage areas is allocated are provided. In accordance with the access condition of the at least one address in the logical volume, the data written to the at least one address by the write request is migrated from the at least one storage area included in one of the multiple storage area groups to at least one storage area in another storage area group included in the multiple storage area groups.
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Patent Agency Ranking
公开(公告)号：US20190205044A1
公开(公告)日：2019-07-04
申请号：US16332079
申请日：2017-01-10
Applicant: HITACHI, LTD.
Inventor： Tomohiro KAWAGUCHI , Ai SATOYAMA , Kazuei HIRONAKA , Akira DEGUCHI
IPC: G06F3/06
CPC classification number: G06F3/0619 , G06F3/06 , G06F3/064 , G06F3/0689
Abstract: A method for restoring lost data due to a failure of a storage drive is provided, including: selecting a first logical area of a first storage drive that is failed; specifying a first logical area line that includes the first logical area and logical area blocks of a different storage drive and stores a data set having a redundant configuration capable of restoring lost internal data; selecting, from the first logical area line, one or more second logical areas to be accessed for restoring data of the first logical area; and for each of one or more second storage drives that provides the one or more second logical areas respectively, issuing a data storage information request inquiring whether valid data is stored after designating the second logical areas.
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公开(公告)号：US20160253122A1
公开(公告)日：2016-09-01
申请号：US15148254
申请日：2016-05-06
Applicant: Hitachi, Ltd.
Inventor： Ai SATOYAMA , Yoshiaki EGUCHI
CPC classification number: G06F3/0659 , G06F3/0607 , G06F3/0616 , G06F3/0619 , G06F3/0665 , G06F3/0683 , G06F3/0689 , G06F12/1009
Abstract: A plurality of storage apparatuses including a first and second storage apparatus, wherein said first storage apparatus is configured to have a first virtual volume composed of a plurality of virtual segments, at least said second storage apparatus is configured to have a pool composed of a plurality of real pages, each storage apparatus is configured to manage a virtual pool comprising one or more pools including at least said pool, said virtual pool is composed of a plurality of virtual pages, each virtual page corresponding to any real page, and said first storage apparatus is configured to receive a write command that specifies an address belonging to an unallocated virtual segment, allocate a free virtual page to said unallocated virtual segment, and write data to the real page corresponding to the allocated virtual page, even when said first storage apparatus does not have a pool composed of real pages.
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公开(公告)号：US20160239238A1
公开(公告)日：2016-08-18
申请号：US15142259
申请日：2016-04-29
Applicant: HITACHI, LTD.
Inventor： Ai SATOYAMA , Yoshiaki EGUCHI
CPC classification number: G06F3/0644 , G06F3/0607 , G06F3/061 , G06F3/0631 , G06F3/064 , G06F3/0659 , G06F3/0664 , G06F3/0689 , G06F9/45558 , G06F9/5016 , G06F11/0727 , G06F11/0751 , G06F11/0772 , G06F2009/45579
Abstract: In conventional unified storage systems, an I/O for block storage and an I/O for file storage are processed in a single OS without being distinguished, so that it was not possible to perform processes for speedy failure detection or for enhancing performances such as tuning of performance by directly monitoring hardware. The present invention solves the problem by having a block storage-side OS and an OS group managing multiple systems including a file system other than the block storage-side OS coexist within a storage system, wherein the OS group managing multiple systems including a file system other than the block storage-side OS is virtualized by a hypervisor, wherein a block storage micro-controller and the hypervisor can cooperate in performing processes.
Abstract translation: 在传统的统一存储系统中，用于块存储的I / O和用于文件存储的I / O在单个OS中被处理而不被区分，使得不可能执行用于快速故障检测的处理或用于增强诸如 通过直接监控硬件来调整性能。 本发明通过在存储系统中具有块存储侧OS和管理多个包括块存储侧OS以外的文件系统的系统的OS组来解决问题，其中，管理包括文件系统的多个系统的OS组 除了块存储侧OS之外，管理程序虚拟化，其中块存储微控制器和管理程序可以在执行进程中协作。
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19.发明申请公开(公告)号：US20140215482A1
公开(公告)日：2014-07-31
申请号：US13795183
申请日：2013-03-12
Applicant: HITACHI, LTD.
Inventor： Ai SATOYAMA , Yoshiaki EGUCHI
IPC: G06F9/50
CPC classification number: G06F3/0644 , G06F3/0607 , G06F3/061 , G06F3/0631 , G06F3/064 , G06F3/0659 , G06F3/0664 , G06F3/0689 , G06F9/45558 , G06F9/5016 , G06F11/0727 , G06F11/0751 , G06F11/0772 , G06F2009/45579
Abstract: In conventional unified storage systems, an I/O for block storage and an I/O for file storage are processed in a single OS without being distinguished, so that it was not possible to perform processes for speedy failure detection or for enhancing performances such as tuning of performance by directly monitoring hardware. The present invention solves the problem by having a block storage-side OS and an OS group managing multiple systems including a file system other than the block storage-side OS coexist within a storage system, wherein the OS group managing multiple systems including a file system other than the block storage-side OS is virtualized by a hypervisor, wherein a block storage micro-controller and the hypervisor can cooperate in performing processes.
Abstract translation: 在传统的统一存储系统中，用于块存储的I / O和用于文件存储的I / O在单个OS中被处理而不被区分，使得不可能执行用于快速故障检测的处理或用于增强诸如 通过直接监控硬件来调整性能。 本发明通过在存储系统中具有块存储侧OS和管理多个包括块存储侧OS以外的文件系统的系统的OS组来解决问题，其中，管理包括文件系统的多个系统的OS组 除了块存储侧OS之外，管理程序虚拟化，其中块存储微控制器和管理程序可以在执行进程中协作。
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公开(公告)号：US20210334181A1
公开(公告)日：2021-10-28
申请号：US17015192
申请日：2020-09-09
Applicant: HITACHI, LTD.
Inventor： Ai SATOYAMA , Akira DEGUCHI
Abstract: A failure in a main site is recovered by operating in the same operational environment as a sub site. A remote copy system includes: a first storage system providing a main site; and a second storage system providing a sub site. A storage controller stores data and an operation processed in the main site as a main site journal, sends the main site journal to the sub site for sequential processing, stores data and an operation processed in the sub site as a sub site journal after a failover to the sub site is performed, and cancels an unreflected operation that is not processed in the sub site after being stored in the main site journal prior to the failover in the main site and sequentially processes the sub site journal in the main site, when a failback to the main site is performed.
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