公开(公告)号：JP4267421B2

公开(公告)日：2009-05-27

申请号：JP2003364793

申请日：2003-10-24

Applicant: 株式会社日立製作所

Inventor： 洋司 中谷 ,  学 北村

IPC: G06F3/06 ,  G06F12/00 ,  G06F11/20 ,  G06F12/08 ,  G06F17/30

CPC classification number: G06F11/2064 ,  G06F11/2074 ,  G06F12/0815 ,  G06F12/0866 ,  G06F12/0897 ,  G06F17/30067 ,  G06F2201/82 ,  G06F2201/855 ,  G06F2212/264 ,  G06F2212/284 ,  G06F2212/311 ,  G06F2212/312 ,  G06F2212/461 ,  G06F2212/463

公开(公告)号：JP2008198184A

公开(公告)日：2008-08-28

申请号：JP2007311970

申请日：2007-12-03

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： ARAKAWA TAKASHI ,  YAMAMOTO AKIRA

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F11/1471 ,  G06F11/2064 ,  G06F11/2071 ,  G06F2201/84 ,  G06F2201/855

Abstract: PROBLEM TO BE SOLVED: To provide a method and a device enabling a user to determine the suitable size of a journal area according to specific necessary conditions concerning a holding period for backup data. SOLUTION: A storage system implementing journaling for data backup and restore provides the user with information regarding amounts of journal data generated over periods of time. Dynamic allocation of storage capacity from free space may also be applied to the journal volume on an as-needed basis, and the size of the journal volume is minimized when certain journal input is determined to be no longer needed. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种使得用户能够根据关于备份数据的保持期的具体必要条件来确定日志区域的合适大小的方法和装置。 解决方案：实现数据备份和还原的日记功能的存储系统为用户提供了在一段时间内生成的日志数据量的信息。 存储容量从可用空间的动态分配也可以根据需要应用于日志卷，并且当确定某些日志输入被不再需要时，日志卷的大小被最小化。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008181288A

公开(公告)日：2008-08-07

申请号：JP2007013752

申请日：2007-01-24

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： TAKAHASHI MASAMITSU ,  SUZUKI TORU

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F11/1466 ,  G06F11/2058 ,  G06F11/2064 ,  G06F11/2069 ,  G06F11/2074 ,  G06F2201/855

Abstract: PROBLEM TO BE SOLVED: To provide a remote copy system for securing the time sequentiality of data to be dealt by a remote site even when a task in a remote site is operated across a plurality of storages or a plurality of volume groups. SOLUTION: A consistency group 90 composed of a sub-journal volume 82 and a replica is associated with a journal group 92 composed of a primary data volume 80, a primary journal volume 84, a sub-journal volume 86 and a sub-data volume 82. In backing up the sub-data volume to form the replica, a host 20 issues a backup time reservation command to a storage device 12, and the storage device 12 contrasts a time stamp added to the journal data with a backup reservation time to prepare the replica. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：即使远程站点中的任务跨越多个存储器或多个卷组来操作，也提供用于保护远程站点要发送的数据的时间顺序性的远程复制系统。

解决方案：由子日志卷82和副本组成的一致性组90与由主数据卷80，主期刊卷84，子期刊卷86和子字段组成的日志组92相关联 数据卷82.在备份子数据卷以形成副本时，主机20向存储设备12发出备份时间预约命令，并且存储设备12对应于添加到日志数据的时间戳与备份 预定时间准备副本。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007128412A

公开(公告)日：2007-05-24

申请号：JP2005322184

申请日：2005-11-07

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： HOSOUCHI MASAAKI ,  OYAMADA KENICHI ,  HIRAIWA YURI

IPC: G06F3/06

CPC classification number: G06F11/2064 ,  G06F11/2074 ,  G06F2201/855

Abstract: PROBLEM TO BE SOLVED: To provide a system for backup and recovery of data in a computer system. SOLUTION: Based on an update request of data from a host computer, an output processing part updates data stored in a first domain; and a generation processing part stores update data concerned with the update request in a second domain. A marker processing part generates a marker including information on the range in which the data is stored and information on acceptance or refusal that the data is stored in a third domain based on the generation request of marker from the host computer and stores the generated marker in the second domain. A reflection processing part acquires update data corresponding to the data storage range stored before the marker referring to the marker and reflects the acquired update data to the third domain. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在计算机系统中备份和恢复数据的系统。 解决方案：基于来自主计算机的数据的更新请求，输出处理部分更新存储在第一域中的数据; 并且生成处理部在第二域中存储与更新请求有关的更新数据。 标记处理部分基于来自主计算机的标记的生成请求，生成包括关于存储数据的范围的信息和关于接受或拒绝数据存储在第三域中的信息的标记，并将生成的标记存储在 第二个域名 反射处理部分获取与在标记之前存储的数据存储范围相对应的更新数据，并将所获取的更新数据反映到第三域。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007086972A

公开(公告)日：2007-04-05

申请号：JP2005273474

申请日：2005-09-21

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： MUTO YOSHIAKI

IPC: G06F3/06

CPC classification number: G06F11/2082 ,  G06F11/2069 ,  G06F11/2071 ,  G06F2201/855

Abstract: PROBLEM TO BE SOLVED: To provide a technology which can attain control including an efficient recovery to the duplexed state while reducing a load on a host and a user's trouble in a storage system in which data can be written in duplicate. SOLUTION: Data are written in duplicate in data volumes of the main and sub storage devices from a host. Each of the storage devices holds information including updating data from the host as a journal (updated data history information). When one of the two systems for duplicate write fails and, it is returned to the duplexed state, the journal is communicated between the storage devices not through the host. Then, a held journal after the latest synchronization point is transferred to a system to be recovered by means of data copying, the held journal being a part of a journal of normal system and necessary for the synchronization of the volumes. Then, the volumes are restored based on the held journal and then synchronized. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够实现控制的技术，包括有效地恢复到双工状态，同时减少主机上的负载和用户在可以重复写入数据的存储系统中的麻烦。 解决方案：数据从主机和主存储设备的数据卷中重复写入。 每个存储设备保存包括从主机更新数据作为日志的信息（更新的数据历史信息）。 当重复写入的两个系统之一失败并返回到双工状态时，日志在不通过主机的存储设备之间通信。 然后，通过数据复制将最新同步点之后的持有日志传送到要恢复的系统，所保存的日志是正常系统的日志的一部分，并且对于卷的同步是必需的。 然后，根据保存的日志恢复卷，然后进行同步。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006113783A

公开(公告)日：2006-04-27

申请号：JP2004299835

申请日：2004-10-14

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： IWAMURA TAKANARI ,  AZUMI YOSHIHIRO ,  ARAKAWA TAKASHI ,  FUTASE KENTA

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F11/2079 ,  G06F11/1662 ,  G06F11/2058 ,  G06F11/2069 ,  G06F11/2074 ,  G06F2201/855 ,  Y10S707/99953 ,  Y10S707/99955

Abstract: PROBLEM TO BE SOLVED: To perform practical remote copy in a computer system wherein three or more storage devices are installed in different places and are connected in series. SOLUTION: In a normal operation state of the computer system 1000, data stored in the first storage device 200P are transferred by synchronous copy to the intermediary storage device 200I, and data stored in the intermediary storage device 200I is transferred to the second storage device 200R by asynchronous copy. Meanwhile, in a reversal operation state, data stored in the second storage device 200R is transferred to the intermediary storage device 200I by the asynchronous copy, and data stored in the intermediary storage device 200I is transferred to the first storage device 200P by the synchronous copy. Hereat, while the intermediary storage device 200I is performing the synchronous copy, the second storage device halts the asynchronous copy. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：在其中三个或更多个存储设备安装在不同地方并串联连接的计算机系统中执行实际的远程复制。 解决方案：在计算机系统1000的正常操作状态下，存储在第一存储设备200P中的数据通过同步复制传送到中间存储设备200I，并且存储在中间存储设备200I中的数据被传送到第二个 存储设备200R通过异步复制。 同时，在反转操作状态下，存储在第二存储装置200R中的数据通过异步复制传送到中间存储装置200I，并且存储在中间存储装置200I中的数据通过同步副本传送到第一存储装置200P 。 这样，当中间存储装置200I正在执行同步复制时，第二存储装置停止异步复制。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005115898A

公开(公告)日：2005-04-28

申请号：JP2003400513

申请日：2003-11-28

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： KASAKO NAOHISA ,  KONDO SHUJI ,  SUZUKI TORU ,  KOIDE TAKESHI

IPC: G06F3/06 ,  G06F11/20 ,  G06F12/00

CPC classification number: G06F11/2082 ,  G06F3/0607 ,  G06F3/0617 ,  G06F3/0635 ,  G06F3/0646 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/2056 ,  G06F11/2058 ,  G06F11/2064 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2074 ,  G06F2201/855

Abstract: PROBLEM TO BE SOLVED: To provide a storage device capable of reducing the amount of data communicated between information processing devices in the backup operation of data.
SOLUTION: The information processing device generates first data including a first instruction that is to be executed by a second storage device, sends a request to write the first data according to a first communications protocol in a first storage volume to a first write request section, when the first data written in the first storage volume is the command to the second storage device, the first storage device sends a request to write the first data according to a second communications protocol in the second storage volume to a second write request section, and the second storage device executes the first command set in the first data that is written in the second storage volume.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够在数据的备份操作中减少在信息处理设备之间传送的数据量的存储设备。 解决方案：信息处理设备生成包括要由第二存储设备执行的第一指令的第一数据，根据第一存储卷中的第一通信协议向第一写入发送将第一数据写入的请求 请求部分，当第一存储卷中写入的第一数据是到第二存储设备的命令时，第一存储设备根据第二存储卷中的第二通信协议向第二存储设备发送写入第一数据的请求到第二写请求 并且第二存储装置执行写入第二存储卷的第一数据中的第一命令集。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005018506A

公开(公告)日：2005-01-20

申请号：JP2003183734

申请日：2003-06-27

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： HIRAKAWA YUSUKE ,  ARAKAWA TAKASHI ,  TAKEDA TAKAHIKO ,  SATO TAKAO

IPC: G06F12/08 ,  G06F3/06 ,  G06F11/20 ,  G06F12/00 ,  G06F15/00

CPC classification number: G06F17/30312 ,  G06F11/2064 ,  G06F11/2071 ,  G06F11/2082 ,  G06F2201/855 ,  H04L67/1095 ,  H04L67/1097 ,  Y10S707/99955

Abstract: PROBLEM TO BE SOLVED: To transfer or copy data among a plurality of storage systems without affecting the upper computers of the storage systems. SOLUTION: A first storage system stores as journals information about the updates of data stored in the first storage system. The journals are specifically composed of the copies of data used for updates and update information such as write instructions used during the updates. Further, a second storage system obtains the journals via a communication line between the first and second storage systems. The second storage system holds copies of the data retained by the first storage system and uses the journals to update the data matching the data in the first storage system, in order of the data updates by the first storage system. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：在多个存储系统之间传输或复制数据，而不影响存储系统的上位机。 解决方案：第一存储系统存储关于存储在第一存储系统中的数据更新的日志信息。 期刊具体由用于更新的数据副本和更新信息（例如更新期间使用的写入指令）组成。 此外，第二存储系统经由第一和第二存储系统之间的通信线路获得日志。 第二存储系统保存由第一存储系统保留的数据的副本，并且使用期刊按照第一存储系统的数据更新的顺序来更新与第一存储系统中的数据匹配的数据。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：US20230315758A1

公开(公告)日：2023-10-05

申请号：US18331404

申请日：2023-06-08

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： Bradley Gene CALDER ,  Niranjan NILAKANTAN ,  Shashwat SRIVASTAV ,  Jiesheng WU ,  Abdul Rafay ABBASI ,  Shane MAINALI ,  Padmanabha Chakravarthy UDDARAJU

IPC: G06F16/27 ,  G06F16/23 ,  G06F11/20

CPC classification number: G06F16/275 ,  G06F16/2343 ,  G06F16/2379 ,  G06F11/2076 ,  G06F16/27 ,  G06F11/2074 ,  G06F2201/855

Abstract: Embodiments of the present invention relate to synchronously replicating data in a distributed computing environment. To achieve synchronous replication both an eventual consistency approach and a strong consistency approach are contemplated. Received data may be written to a log of a primary data store for eventual committal. The data may then be annotated with a record, such as a unique identifier, which facilitates the replay of the data at a secondary data store. Upon receiving an acknowledgment that the secondary data store has written the data to a log, the primary data store may commit the data and communicate an acknowledgment of success back to the client. In a strong consistency approach, the primary data store may wait to send an acknowledgement of success to the client until it receives an acknowledgment that the secondary has not only written, but also committed, the data.

公开(公告)号：US11755414B2

公开(公告)日：2023-09-12

申请号：US18054671

申请日：2022-11-11

Applicant: Microsoft Technology Licensing, LLC

Inventor： Roopesh Battepati ,  Michael C. Johnson ,  Manoj Kadam ,  Raymond Wang ,  Ganesh Prasad ,  Ziquan Zhu

IPC: G06F11/14 ,  G06F11/20

CPC classification number: G06F11/1407 ,  G06F11/1451 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/84 ,  G06F2201/855

Abstract: Examples of the present disclosure describe implementing bitmap-based data replication when a primary form of data replication between a source device and a target device cannot be used. According to one example, a temporal identifier may be received from the target device. If the source device determines that the primary replication method is unable to be used to replicate data associated with the temporal identifier, a secondary replication method may be initiated. The secondary replication method may utilize a recovery bitmap identifying data blocks that have changed on the source device since a previous event.