公开(公告)号：WO2009021949A3

公开(公告)日：2009-02-19

申请号：PCT/EP2008/060573

申请日：2008-08-12

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  BARTFAI, Robert, Francis ,  BOYD, Kenneth, Wayne ,  CHEN, James, Chien-Chiung ,  DAY, Kenneth, Fairclough, III ,  FIENBLIT, Shachar ,  MCBRIDE, Gregory, Edward ,  MESSINA, David ,  NICHOLSON, Robert, Bruce ,  SPEAR, Gail, Andrea

Inventor： BARTFAI, Robert, Francis ,  BOYD, Kenneth, Wayne ,  CHEN, James, Chien-Chiung ,  DAY, Kenneth, Fairclough, III ,  FIENBLIT, Shachar ,  MCBRIDE, Gregory, Edward ,  MESSINA, David ,  NICHOLSON, Robert, Bruce ,  SPEAR, Gail, Andrea

IPC: G06F11/20 ,  G06F12/16

Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.

公开(公告)号：WO2007141125A1

公开(公告)日：2007-12-13

申请号：PCT/EP2007/054824

申请日：2007-05-18

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BOYD, Kenneth Wayne ,  DAY, Kenneth, Fairclough, III ,  DEWEY, Douglas William

Inventor： BOYD, Kenneth Wayne ,  DAY, Kenneth, Fairclough, III ,  DEWEY, Douglas William

IPC: G06F11/20

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

Abstract: Provided are a method, system, and article of manufacture for mirroring data between a first site and a second site. Updates to segments of storage at the first site are copied to corresponding segments of storage at the second site. Codes are generated from the segments at the second site and a valid flag is provided for at least one code indicating whether the code for the segment of data is valid. One code is generated from each segment of storage at the first site. An operation is initiated to copy segments from the second site to the first site. A determination is made for segments at the second site as to whether the valid flag for the code for the segment at the second site indicates that the code is valid in response to initiating the copy operation. The valid code for at least one segment in the second site is compared with the code for the corresponding segment at the first site to determine whether to copy the data from the segment at the second site to the first site as part of the copy operation.

Abstract translation: 提供了用于在第一站点和第二站点之间镜像数据的方法，系统和制造。 第一个站点上存储段的更新将被复制到第二站点的相应存储段。 代码是从第二站点的段生成的，并且为指示数据段的代码是否有效的至少一个代码提供有效的标志。 在第一个站点的每个存储段生成一个代码。 启动操作以将第二站点的段复制到第一站点。 针对第二站点处的段的有效标志是否响应于启动复制操作而对代码有效的确定。 将第二站点中至少一个段的有效代码与第一站点处的相应段的代码进行比较，以确定是否将数据从第二站点的段复制到第一站点作为复制操作的一部分。

公开(公告)号：WO2007065780A3

公开(公告)日：2007-06-14

申请号：PCT/EP2006/068570

申请日：2006-11-16

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BOYD, Kenneth, Wayne ,  DAY, Kenneth, Fairclough, III ,  FACTOR, Michael ,  FLYNN, John, Thomas, JR ,  HAYARDENY, Amiram ,  KERN, Robert, Frederic ,  MCBRIDE, Gregory, Edward ,  MICKA, William, Frank ,  WOLFGANG, John, Jay ,  ZLOTNICK, Aviad

Inventor： BOYD, Kenneth, Wayne ,  DAY, Kenneth, Fairclough, III ,  FACTOR, Michael ,  FLYNN, John, Thomas, JR ,  HAYARDENY, Amiram ,  KERN, Robert, Frederic ,  MCBRIDE, Gregory, Edward ,  MICKA, William, Frank ,  WOLFGANG, John, Jay ,  ZLOTNICK, Aviad

IPC: G06F11/14

Abstract: A method for protecting data in storage systems includes receiving a command for writing data to a first storage location. A determination is made that previously written data is stored in the first storage location. The previously written data is copied to a second storage location, in response to determining that the previously written data is stored in the first storage location. The data is written to the first storage location, in response to copying the previously written data to the second storage location.

公开(公告)号：WO2009021949A2

公开(公告)日：2009-02-19

申请号：PCT/EP2008060573

申请日：2008-08-12

Applicant: IBM ,  BARTFAI ROBERT FRANCIS ,  BOYD KENNETH WAYNE ,  CHEN JAMES CHIEN-CHIUNG ,  DAY KENNETH FAIRCLOUGH III ,  FIENBLIT SHACHAR ,  MCBRIDE GREGORY EDWARD ,  MESSINA DAVID ,  NICHOLSON ROBERT BRUCE ,  SPEAR GAIL ANDREA

Inventor： BARTFAI ROBERT FRANCIS ,  BOYD KENNETH WAYNE ,  CHEN JAMES CHIEN-CHIUNG ,  DAY KENNETH FAIRCLOUGH III ,  FIENBLIT SHACHAR ,  MCBRIDE GREGORY EDWARD ,  MESSINA DAVID ,  NICHOLSON ROBERT BRUCE ,  SPEAR GAIL ANDREA

IPC: G06F11/20 ,  G06F12/16

CPC classification number: G06F11/2082 ,  G06F11/2056 ,  G06F11/2069 ,  H04L67/1095

Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.

Abstract translation: 提供了一种用于在存储控制器和复制引擎之间分割写入的方法，系统和制品。 在存储控制器中执行的分离器管理对主卷的访问。 接收初始化命令以与复制引擎进行通信。 接收到一个主卷的复制命令，主卷被指定为受复制。 接收写入请求以将数据写入到以复制形式表示的主卷的目标主卷上。 写请求中的数据将写入目标主卷。 写请求中的数据被发送到复制引擎。 复制引擎执行与目标主卷关联的复制服务功能，以将数据写入复制引擎卷。

公开(公告)号：WO2007065780A2

公开(公告)日：2007-06-14

申请号：PCT/EP2006068570

申请日：2006-11-16

Applicant: IBM ,  IBM UK ,  BOYD KENNETH WAYNE ,  DAY KENNETH FAIRCLOUGH III ,  FACTOR MICHAEL ,  FLYNN JOHN THOMAS JR ,  HAYARDENY AMIRAM ,  KERN ROBERT FREDERIC ,  MCBRIDE GREGORY EDWARD ,  MICKA WILLIAM FRANK ,  WOLFGANG JOHN JAY ,  ZLOTNICK AVIAD

Inventor： BOYD KENNETH WAYNE ,  DAY KENNETH FAIRCLOUGH III ,  FACTOR MICHAEL ,  FLYNN JOHN THOMAS JR ,  HAYARDENY AMIRAM ,  KERN ROBERT FREDERIC ,  MCBRIDE GREGORY EDWARD ,  MICKA WILLIAM FRANK ,  WOLFGANG JOHN JAY ,  ZLOTNICK AVIAD

CPC classification number: G06F11/1435 ,  G06F11/1471 ,  G06F2201/84

Abstract: A method for protecting data in storage systems includes receiving a command for writing data to a first storage location. A determination is made that previously written data is stored in the first storage location. The previously written data is copied to a second storage location, in response to determining that the previously written data is stored in the first storage location. The data is written to the first storage location, in response to copying the previously written data to the second storage location.

Abstract translation: 一种用于保护存储系统中的数据的方法包括：接收用于向第一存储位置写入数据的命令。 确定先前写入的数据被存储在第一存储位置。 响应于确定先前写入的数据被存储在第一存储位置，先前写入的数据被复制到第二存储位置。 响应于将先前写入的数据复制到第二存储位置，数据被写入到第一存储位置。