公开(公告)号：EP1517240A1

公开(公告)日：2005-03-23

申请号：EP04251807.6

申请日：2004-03-26

Applicant: Hitachi Ltd.

Inventor： Kasako, Naohisa, Hitachi, Ltd.Int.Prop. Group ,  Kondo, Shuji, Hitachi, Ltd.Int.Prop. Group ,  Suzuki, Toru Hitachi, Ltd.Int.Prop. Group

IPC: G06F11/14

CPC classification number: G06F11/2082 ,  G06F11/2066 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2074 ,  G06F11/2094 ,  G06F11/2097 ,  G06F2201/855

Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol. The first storage device is equipped with a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device. The information processing device transmits to the first write request section a request to write the first data in the first storage volume according to the first communications protocol. When the first data written in the first storage volume is an instruction to the second storage device, the first storage device transmits to the second write request section a request to write the first data in the second storage volume according to the second communications protocol. The second storage device executes the first instruction set in the first data written in the second storage volume.

Abstract translation: 存储装置系统包括信息处理装置，配备有第一存储卷的第一存储装置和配备有第二存储卷的第二存储装置。 信息处理装置和第一存储装置彼此通信地连接。 此外，第一存储装置和第二存储装置彼此通信地连接。 信息处理装置配备有根据第一通信协议请求在第一存储装置中写入数据的第一写入请求部分。 第一存储装置配备有根据第二通信协议请求在第二存储装置中写入数据的第二写入请求部分。 信息处理装置创建包括在第二存储装置中执行的第一指令的第一数据。 信息处理装置根据第一通信协议向第一写请求部分发送将第一数据写入第一存储卷的请求。 当第一存储卷中写入的第一数据是指向第二存储装置的指令时，第一存储装置根据第二通信协议向第二写入请求部分发送将第一数据写入第二存储卷的请求。 第二存储装置执行写在第二存储卷中的第一数据中的第一指令集。

公开(公告)号：EP1494120A2

公开(公告)日：2005-01-05

申请号：EP04252272.2

申请日：2004-04-16

Applicant: Hitachi, Ltd.

Inventor： Suishu, Kazuhito c/o Hitachi, Ltd. I.P.G. ,  Hirakawa, Yusuke c/o Hitachi, Ltd. I.P.G. ,  Asaka, Yoshihiro c/o Hitachi, Ltd. I.P.G.

IPC: G06F11/20

CPC classification number: G06F11/2076 ,  G06F11/2058 ,  G06F11/2064 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/855 ,  H04L67/1095 ,  Y10S707/99953

Abstract: A data processing system includes at least a first storage system, a second storage system and a third storage system. The third storage system maintains a replication of data stored in the first storage system. When updating data in the first storage system, the first storage system updates the replication of data stored in the third storage system and creates a journal. The journal is formed from a copy of data used for update and update information such as a write command for update, etc. The second storage system also maintains a replication of data stored in the first storage system. The second storage system obtains the journal, and updates data stored therein corresponding to data stored in the first storage system in the order of data update performed in the first storage system. When updating data stored in the third storage system corresponding to data stored in the first storage system, the third storage system creates a journal using data update numbers created in the first storage system. When the first storage system fails, the second storage system obtains the journal from the third storage system, and updates data stored therein corresponding to data stored in the first storage system in the order of data update performed in the first storage system.

Abstract translation: 数据处理系统至少包括第一存储系统，第二存储系统和第三存储系统。 第三存储系统维护存储在第一存储系统中的数据的复制。 当更新第一存储系统中的数据时，第一存储系统更新存储在第三存储系统中的数据的复制并创建日志。 日志由用于更新和更新信息的数据的副本形成，例如用于更新的写入命令等。第二存储系统还维护存储在第一存储系统中的数据的复制。 第二存储系统获取日志，并按照在第一存储系统中执行的数据更新的顺序更新与存储在第一存储系统中的数据相对应的存储在其中的数据。 当更新与存储在第一存储系统中的数据对应的第三存储系统中存储的数据时，第三存储系统使用在第一存储系统中创建的数据更新编号创建日志。 当第一存储系统发生故障时，第二存储系统从第三存储系统获取日志，并且按照在第一存储系统中执行的数据更新的顺序更新与存储在第一存储系统中的数据相对应的存储在其中的数据。

公开(公告)号：EP1349085A2

公开(公告)日：2003-10-01

申请号：EP03006626.0

申请日：2003-03-25

Applicant: ITI, Inc.

Inventor： Holenstein, Bruce D. ,  Holenstein, Paul J. ,  Strickler, Gary E.

IPC: G06F17/30

CPC classification number: G06F11/2064 ,  G06F11/2069 ,  G06F11/2074 ,  G06F11/2076 ,  G06F11/2079 ,  G06F17/30575 ,  G06F2201/855 ,  Y10S707/99931

Abstract: Database replication systems replicate blocks of transaction steps or operations with synchronous replication, and perform dual writes with queuing and blocking of transactions. Tokens are used to prepare a target database for replication from a source database and to confirm the preparation. Database replication systems switch between a synchronous replication mode and an asynchronous replication mode, and then back to a synchronous replication mode, based on detection of selected events.

Abstract translation: 数据库复制系统通过同步复制复制事务步骤或操作块，并执行事务排队和阻塞的双重写入操作。 令牌用于从源数据库准备用于复制的目标数据库，并确认准备。 数据库复制系统在同步复制模式和异步复制模式之间切换，然后根据所选事件的检测恢复到同步复制模式。

公开(公告)号：EP1208433A1

公开(公告)日：2002-05-29

申请号：EP00955347.0

申请日：2000-08-02

Applicant: EMC CORPORATION

Inventor： DUPREY, Dennis ,  LUCOVSKY, Jeffrey ,  ROA, Guillermo

IPC: G06F11/14

CPC classification number: G06F11/2082 ,  G06F11/2058 ,  G06F11/2074 ,  G06F2201/855 ,  Y10S707/99953 ,  Y10S707/99955

Abstract: In a remote mirroring system, device, and method, a master storage unit stores information in a log and uses the information from the log to quickly resynchronize slave images following a failure in the master storage unit. Upon receiving a write request from a host, the master storage unit stores a write entry in the log. The write entry includes information that identifies a portion of the slave images that may be unsynchronized from the master image due to the write request. The master storage unit then proceeds to update the master image and the slave images. The log is preserved through the failure, such that the.log is available to the master storage unit upon recovery from the failure. When the master storage unit is operational following the failure, the master storage unit resynchronizes the slave images to the master image by copying those portions of the master image indicated in the log to the slave images.

公开(公告)号：EP2909724A4

公开(公告)日：2016-07-20

申请号：EP12886518

申请日：2012-10-19

Applicant: HEWLETT PACKARD ENTPR DEV LP

Inventor： CHAKRABARTI DHRUVA

IPC: G06F9/38 ,  G06F11/14

CPC classification number: G06F3/0619 ,  G06F3/0655 ,  G06F3/0679 ,  G06F9/3863 ,  G06F11/1435 ,  G06F11/1438 ,  G06F11/1469 ,  G06F11/1471 ,  G06F11/2069 ,  G06F11/2082 ,  G06F2201/82 ,  G06F2201/84 ,  G06F2201/855 ,  G06F2206/1014

Abstract: Crash recovery with asynchronous consistent snapshots in persistent memory stores of a processing environment. A processing environment includes a user program and infrastructure-maintained data structures. The infrastructure-maintained data structures include a log of updates made to program data structures and a snapshot of the state of the program data structures. The systems and methods include writing log entries in the log to a transient memory. The log entries correspond to store instructions and memory management instructions operating on a nonvolatile memory (NVM), and input/output (I/O) operations executed by program instructions of the user program. Each of the log entries represents an effect of a corresponding operation in the program instructions. The systems and methods also include creating a snapshot in the NVM after a consistent program point based on the log of updates. The snapshot provides a rollback position during restart following a crash.

Abstract translation: 在处理环境的持久存储器存储中使用异步一致的快照进行崩溃恢复。 处理环境包括用户程序和基础设施维护的数据结构。 基础设施维护的数据结构包括对程序数据结构进行更新的日志和程序数据结构状态的快照。 系统和方法包括将日志中的日志条目写入瞬态内存。 日志条目对应于在非易失性存储器（NVM）上操作的存储指令和存储器管理指令以及由用户程序的程序指令执行的输入/输出（I / O）操作。 每个日志条目表示程序指令中相应操作的影响。 系统和方法还包括在基于更新日志的一致程序点之后在NVM中创建快照。 快照在崩溃后重新启动时提供回滚位置。

公开(公告)号：EP2948849A2

公开(公告)日：2015-12-02

申请号：EP14707336.5

申请日：2014-01-28

Applicant: 1&1 Internet AG

Inventor： SCHÖBEL-THEUER, Thomas ,  SCHÖBEL-THEUER, Thomas

IPC: G06F11/20

CPC classification number: G06F3/0604 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/2074 ,  G06F2201/855

Abstract: A system for replicating data comprising includes a first and a second computing device. The first computing device has a first storage unit configured to store block level data, a second storage unit and a volatile memory. The second computing device has a third storage unit and a fourth storage unit configured to store block level data, the third storage unit being communicatively coupled to the second storage unit. The first computing device is configured to receive write requests each containing payload data, write the payload data of the write requests to the volatile memory and append the payload data to the second storage unit, and acknowledge the write requests prior to writing the respective payload data to the second storage unit. The second computing device is configured to detect new data in the third storage unit and apply the new data to the fourth storage unit.

Abstract translation: 一种用于复制数据的系统，包括第一和第二计算设备。 第一计算设备具有被配置为存储块级数据的第一存储单元，第二存储单元和易失性存储器。 第二计算设备具有第三存储单元和第四存储单元，其被配置为存储块级数据，第三存储单元通信地耦合到第二存储单元。 第一计算设备被配置为接收每个包含有效载荷数据的写请求，将写请求的有效载荷数据写入易失性存储器，并将有效载荷数据附加到第二存储单元，并在写入相应的有效载荷数据之前确认写请求 到第二存储单元。 第二计算装置被配置为检测第三存储单元中的新数据并将新数据应用于第四存储单元。

公开(公告)号：EP1559019B1

公开(公告)日：2015-07-15

申请号：EP03770166.1

申请日：2003-10-14

Applicant: Maximum Availability Limited

Inventor： TARBELL, James, Scott ,  GARVEY, David, John

IPC: G06F12/16 ,  G06F11/14

CPC classification number: G06F11/1415 ,  G06F11/1471 ,  G06F11/2071 ,  G06F2201/855

公开(公告)号：EP1591900B1

公开(公告)日：2015-06-24

申请号：EP05252482.4

申请日：2005-04-20

Applicant: Hitachi, Ltd.

Inventor： Hirakawa, Yusuke ,  Suishu, Kazuhito ,  Asaka, Yoshihiro

IPC: G06F11/20

CPC classification number: G06F11/2076 ,  G06F11/2058 ,  G06F11/2069 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/855 ,  Y10S707/99953 ,  Y10S707/99955

公开(公告)号：EP2715553A4

公开(公告)日：2014-12-17

申请号：EP12789199

申请日：2012-05-18

Applicant: MICROSOFT CORP

Inventor： CALDER BRADLEY GENE ,  NILAKANTAN NIRANJAN ,  SRIVASTAV SHASHWAT ,  WU JIESHENG ,  ABBASI ABDUL RAFAY ,  MAINALI SHANE ,  UDDARAJU PADMANABHA CHAKRAVARTHY

IPC: G06F11/20

CPC classification number: G06F17/30578 ,  G06F11/2074 ,  G06F11/2097 ,  G06F17/30241 ,  G06F17/30584 ,  G06F17/30589 ,  G06F2201/855

公开(公告)号：EP2423818A1

公开(公告)日：2012-02-29

申请号：EP10841823.7

申请日：2010-04-07

Applicant: Hitachi, Ltd.

Inventor： KONDO, Shuji ,  OKUMOTO, Katsuhiro

IPC: G06F12/00

CPC classification number: G06F11/1645 ,  G06F11/1456 ,  G06F11/2058 ,  G06F11/2074 ,  G06F11/2079 ,  G06F11/2082 ,  G06F2201/855

Abstract: If the first storage apparatus is suspended, it is determined which of the update number which the journal recently reflected in the second storage apparatus comprises and the update number which the journal recently reflected in the third storage apparatus comprises is the newer. It is determined, in the newer storage apparatus which is determined to comprise the newer update number, whether one or more differential journals from the journal comprising the update number next to the update number which is not determined to be the newer to the journal comprising the update number determined to be the newer exist or not. If the result of the determination is positive, from the newer storage apparatus to the previous storage apparatus which is not the newer of the second and the third storage apparatuses, one or more differential JNLs are copied. In the previous storage apparatus, one or more differential JNLs are reflected in order of the update numbers, to the data volumes in the previous storage apparatus.

Abstract translation: 如果第一存储装置被暂停，则确定最近在第二存储装置中反映的日志的更新号码中哪一个包括最近在第三存储装置中反映的日志的更新号码是较新的。 确定在被确定为包括较新的更新号码的较新的存储装置中，是否包括来自包括更新号码旁边的更新号码的一个或多个差分日志，该更新号码未被确定为包括 更新号码确定为较新的存在与否。 如果确定结果是肯定的，则从较新的存储装置到不是第二和第三存储装置的较新的先前存储装置，复制一个或多个差分JNL。 在先前的存储装置中，一个或多个差分JNL以更新号的顺序反映到先前存储装置中的数据量。