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：US20150370713A1

公开(公告)日：2015-12-24

申请号：US14765442

申请日：2013-10-09

Applicant: HITACHI, LTD.

Inventor： Noboru MORISHITA ,  Shintaro KUDO ,  Yusuke NONAKA ,  Akira YAMAMOTO

IPC: G06F12/08

CPC classification number: G06F12/0868 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F11/14 ,  G06F12/0895 ,  G06F13/10 ,  G06F2212/1016 ,  G06F2212/1041 ,  G06F2212/283 ,  G06F2212/313

Abstract: In a storage system, first and second controllers have respective first and second buffer and cache areas. The first controller stores write data in accordance with a write request in the first cache area without involving the first buffer area and to transfer the stored write data to the second cache area without involving the second buffer area. The first controller is configured to determine which of the first and second cache areas is to be used as a copy source and to be used as a copy destination depending on whether the storing of the first write data in the first cache area had been successful or on whether the transfer of the write data from the first cache area to the second controller had been successful, and by copying data from the copy source to the copy destination, recovers data in an area related to a transfer failure.

Abstract translation: 在存储系统中，第一和第二控制器具有相应的第一和第二缓冲器和缓存区域。 第一控制器将写入数据按照第一高速缓存区域中的写入请求存储而不涉及​​第一缓冲区域，并将存储的写入数据传送到第二高速缓存区域而不涉及第二缓冲区域。 第一控制器被配置为根据第一高速缓存区域中的第一写入数据的存储是否已经成功而确定将第一和第二高速缓存区域中的哪一个用作复制源并被用作复制目的地，或者 关于从第一高速缓存区域到第二控制器的写入数据的传送是否已经成功，并且通过将数据从复制源复制到复制目的地，恢复与传输失败相关的区域中的数据。

公开(公告)号：US20170277587A1

公开(公告)日：2017-09-28

申请号：US15506295

申请日：2014-10-08

Applicant: Hitachi, Ltd.

Inventor： Keiichi MATSUZAWA ,  Noboru MORISHITA ,  Toshiomi MORIKI

IPC: G06F11/07 ,  G06F9/46

CPC classification number: G06F11/0778 ,  G06F9/46 ,  G06F11/0712 ,  G06F11/0784

Abstract: A computer system, having: a physical computer, which includes a processor and a memory; and an external apparatus, which is coupled to the physical computer and which includes a storage apparatus, the physical computer further includes: a virtualization module for providing at least one virtual machine; a first failure monitoring module for detecting a failure in the physical computer and the virtualization module; a first memory dump module for copying, to the external apparatus, a first area in the memory which is allocated to the virtualization module; a second failure monitoring module for detecting a failure in the virtual machine; and a second memory dump module for copying, to the external apparatus, a second area in the memory which is allocated by the virtualization module to the virtual machine.

公开(公告)号：US20140006726A1

公开(公告)日：2014-01-02

申请号：US13938572

申请日：2013-07-10

Applicant: HITACHI LTD.

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

IPC: G06F3/06

CPC classification number: G06F3/0644 ,  G06F3/0608 ,  G06F3/0617 ,  G06F3/062 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0683

Abstract: A storage system includes a first storage apparatus and a second storage apparatus. The first storage apparatus includes a capacity pool that is partitioned into multiple pool pages and includes a storage area of an external logical volume provided by at least one storage apparatus. The second storage apparatus provides first virtual volume which is a virtual logical volume comprising multiple first virtual areas. In a case of receiving a write request from the computer to a virtual area in the first virtual volume to which a page is not allocated, an unallocated pool page of the external logical volume is allocated to the virtual area. An authority to allocate the unallocated pool page of the external logical volume is assigned to the first storage apparatus.

Abstract translation: 存储系统包括第一存储装置和第二存储装置。 第一存储装置包括划分为多个池页面的容量池，并且包括由至少一个存储装置提供的外部逻辑卷的存储区域。 第二存储装置提供第一虚拟卷，其是包括多个第一虚拟区域的虚拟逻辑卷。 在从计算机接收到未分配页面的第一虚拟卷中的虚拟区域的写入请求的情况下，将外部逻辑卷的未分配的池页面分配给虚拟区域。 分配外部逻辑卷的未分配池页面的权限被分配给第一存储设备。

公开(公告)号：US20190095382A1

公开(公告)日：2019-03-28

申请号：US16083059

申请日：2016-07-28

Applicant: HITACHI, LTD.

Inventor： Noboru MORISHITA ,  Masakuni AGETSUMA ,  Akihiko ARAKI ,  Tomoki SEKIYAMA

IPC: G06F15/167 ,  G06F9/48 ,  H04L12/24 ,  H04L29/08

Abstract: A computer system includes a plurality of servers connected to each other via a communication line, each server including a memory and a processor, an OS program and a storage program. The storage program is executed by the processor, and one of the plurality of servers acts as a request source server while one of the other servers acts as a request destination server. When the request source server reads data from the request destination server, the processor of the request source server executes the storage program to transmit a data read request to the request destination server. The processor of the request destination server then executes a storage memory driver incorporated in the OS program to read the requested data from an own memory and transmit the read data to the request source server. The request source server then executes the storage program to acquire the data.

公开(公告)号：US20180173721A1

公开(公告)日：2018-06-21

申请号：US15579893

申请日：2015-07-27

Applicant: Hitachi, Ltd.

Inventor： Akihiko ARAKI ,  Yusuke NONAKA ,  Noboru MORISHITA

IPC: G06F17/30 ,  G06F3/06

Abstract: This storage system comprises a block interface, a block control unit, a file control unit, and shared memory. The file control unit and block control unit are coupled via a first memory-through path structured to pass through a first area of the shared memory, and via a second memory-through path structured to pass through a second area of the shared memory. The block control unit has a protocol control unit and a virtual driver; exchanges control information for the file control unit with the file control unit via the first memory-through path; uses the virtual driver to convert an I/O request passed from the file control unit via the second memory-through path and processes the result with a protocol processing unit; and bypasses the virtual driver and uses the protocol processing unit to process a block I/O request transferred from the block interface via a physical path.