公开(公告)号：US06611901B1

公开(公告)日：2003-08-26

申请号：US09347344

申请日：1999-07-02

申请人： William Frank Micka ,  Yoram Novick ,  David Michael Shackelford

发明人： William Frank Micka ,  Yoram Novick ,  David Michael Shackelford

IPC分类号： G06F1200

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0676 ,  G06F11/1466 ,  G06F12/0866

摘要： Disclosed is a method, system, program, and data structures for maintaining electronic data at a point-in-time. A first data structure indicates point-in-time data at one of a first storage location and a corresponding second storage location. A second data structure indicates point-in-time data at one of a first storage location and corresponding second storage location. A first relationship data structure indicates a relationship between the first storage location and corresponding second storage location and a second relationship data structure indicates a relationship between the first storage location and second storage location. A request to process the first storage location is processed by processing the first relationship data structure to determine the corresponding second storage location for the first storage location and processing the first data structure to determine whether data at the first storage location was transferred to the second storage location. A request to process the second storage location is processed by processing the second relationship data structure to determine the corresponding first storage location for the second storage location and processing the second data structure to determine whether the point-in-time data at the first storage location was transferred to the second storage location.

摘要翻译： 公开了一种用于在时间点维护电子数据的方法，系统，程序和数据结构。 第一数据结构指示在第一存储位置和对应的第二存储位置之一处的时间点数据。 第二数据结构指示在第一存储位置和对应的第二存储位置之一处的时间点数据。 第一关系数据结构指示第一存储位置与对应的第二存储位置之间的关系，第二关系数据结构指示第一存储位置与第二存储位置之间的关系。 通过处理第一关系数据结构来处理处理第一存储位置的请求，以确定第一存储位置的对应的第二存储位置，并处理第一数据结构，以确定第一存储位置的数据是否被传送到第二存储器 位置。 通过处理第二关系数据结构来处理处理第二存储位置的请求，以确定第二存储位置的对应的第一存储位置，并处理第二数据结构以确定第一存储位置处的时间点数据 被转移到第二个存储位置。

公开(公告)号：US5497483A

公开(公告)日：1996-03-05

申请号：US949664

申请日：1992-09-23

申请人： Brent C. Beardsley ,  William F. Micka ,  Yoram Novick

发明人： Brent C. Beardsley ,  William F. Micka ,  Yoram Novick

IPC分类号： G06F11/14 ,  G06F11/00

CPC分类号： G06F11/1466

摘要： A method and system are disclosed for transferring backup copies of designated multi-track datasets which are stored in a plurality of storage subsystems to a host system via data channel during concurrent execution of an application. Upon receiving a request for a backup copy, execution of an application is temporarily suspended. A dataset logical-to-physical storage system address concordance is formed and execution of the application is resumed thereafter. Any application initiated updates to affected tracks within the designated datasets which occur prior to generation of a backup copy are processed by buffering the updates, copying the affected tracks to storage subsystem memory, updating the address concordance and writing the updates to the affected tracks within the dataset. Requests from the host system to transfer a selected sequence of tracks within the designated multi-track dataset are then examined to determine if the sequence includes affected tracks which have previously been copied to storage subsystem memory. An artificial track is then automatically substituted into the requested sequence of selected tracks for each affected track which has previously been copied to storage subsystem memory during transfer of the selected sequence of tracks such that the host system is made aware of the previous copying of these affected tracks.

摘要翻译： 公开了一种方法和系统，用于在并行执行应用程序期间通过数据通道将存储在多个存储子系统中的指定多轨数据集的备份副本传送到主机系统。 在接收到备份副本的请求时，应用程序的执行被暂停。 形成数据集逻辑到物理存储系统地址一致性，然后恢复应用程序的执行。 在生成备份副本之前发生的指定数据集内的受影响的轨道的任何应用程序启动的更新将通过缓存更新来处理，将受影响的轨道复制到存储子系统存储器，更新地址一致性，并将更新写入受影响的轨道内 数据集 然后检查从主机系统传送指定的多轨迹数据集内所选序列的轨迹的请求，以确定该序列是否包括先前已复制到存储子系统存储器的受影响的轨道。 然后，在所选择的轨道序列的传送期间，将人造轨道自动地替换为先前已经被复制到存储子系统存储器中的每个受影响的轨道的所选择的轨道的序列，使得主机系统知道这些受影响的先前复制 轨道

公开(公告)号：US5379398A

公开(公告)日：1995-01-03

申请号：US871247

申请日：1992-04-20

申请人： Oded Cohn ,  Michael H. Hartung ,  John N. McCauley, Jr. ,  William F. Micka ,  Claus W. Mikkelsen ,  Kenneth M. Nagin ,  Yoram Novick ,  Alexander Winokur

发明人： Oded Cohn ,  Michael H. Hartung ,  John N. McCauley, Jr. ,  William F. Micka ,  Claus W. Mikkelsen ,  Kenneth M. Nagin ,  Yoram Novick ,  Alexander Winokur

IPC分类号： G06F12/00 ,  G06F11/14 ,  G06F12/02 ,  G06F12/16

CPC分类号： G06F11/1466

摘要： A method and system are disclosed for permitting high concurrency of access during backup copying of designated data stored within a storage subsystem which includes multiple storage devices coupled to the data processing system via a storage subsystem control unit having subsystem memory therein. Data within each storage device is accessed utilizing a Unique Control Block (UCB), which identifies a selected storage device, and an associated data retrieval command sequence which identifies the data to be accessed. Portions of the data copied to subsystem memory within the subsystem storage control unit as sidefiles from a first storage device may be accessed utilizing a Unique Control Block (UCB) associated with an alternate storage device by associating a selected data retrieval command sequence therewith which identifies the data as stored within the subsystem memory. In this manner, data from a first storage device may be accessed utilizing an alternate Unique Control Block (UCB), permitting concurrent access of data utilizing the Unique Control Block (UCB) associated with the first storage device.

摘要翻译： 公开了一种方法和系统，用于在备份复制存储在存储子系统内的指定数据的同时进行访问的高并发性，该存储子系统包括经由其中具有子系统存储器的存储子系统控制单元耦合到数据处理系统的多个存储设备。 使用识别所选存储设备的唯一控制块（UCB）和识别要访问的数据的相关联的数据检索命令序列来访问每个存储设备内的数据。 可以利用与替代存储设备相关联的唯一控制块（UCB）来访问从子系统存储控制单元中复制到子系统存储控制单元中的子系统存储器的部分作为来自第一存储设备的副文件，通过将所选择的数据检索命令序列与其相关联来识别标识 存储在子系统存储器中的数据。 以这种方式，可以使用替代的唯一控制块（UCB）来访问来自第一存储设备的数据，允许使用与第一存储设备相关联的唯一控制块（UCB）并行访问数据。

公开(公告)号：US20060259811A1

公开(公告)日：2006-11-16

申请号：US11487634

申请日：2006-07-17

申请人： Yoram Novick

发明人： Yoram Novick

IPC分类号： G06F11/00

CPC分类号： G06F11/1464 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/1471 ,  G06F2201/82 ,  G06F2201/835

摘要： A data backup and recovery system for use with at least one server interconnected with at least one storage device, including at least one data recovery device, at least one associated data recovery storage device, controlled by the data recovery device, and at least one data communication monitor. A method for data backup and recovery is also disclosed.

公开(公告)号：US20050251634A1

公开(公告)日：2005-11-10

申请号：US10839034

申请日：2004-05-05

申请人： Helena Burton ,  Michael Factor ,  Timothy Griffin ,  Thomas Jarvis ,  William Micka ,  Yoram Novick ,  Gail Spear ,  Sam Werner

发明人： Helena Burton ,  Michael Factor ,  Timothy Griffin ,  Thomas Jarvis ,  William Micka ,  Yoram Novick ,  Gail Spear ,  Sam Werner

IPC分类号： G06F13/10 ,  G06F3/06 ,  G06F11/20 ,  G06F12/16

CPC分类号： G06F3/065 ,  G06F3/0611 ,  G06F3/067 ,  G06F11/1458 ,  G06F2201/82

摘要： A target data storage system comprises a peer-to-peer communication link interface for linking the target to a source data storage system, and data storage for storing point in time copy data received from the source via the peer-to-peer communication link interface. Information is established at the target relating logical identification of the point in time copy data to point in time copy data stored at the target and to point in time copy data stored at the source, such that the information references the data storage system having requested point in time copy data. A controller of the target accesses requested point in time copy data at the target if the table indicates that the requested point in time copy data is available at the target; else obtains the requested point in time copy data from the source via the peer-to-peer communication link interface.

摘要翻译： 目标数据存储系统包括用于将目标链接到源数据存储系统的点对点通信链路接口以及用于通过对等通信链路接口从源接收的时间点复制数据的数据存储器 。 在目标处建立信息，将时间点的复制数据的时间点的逻辑识别与存储在目标上的时间复制数据相关联，并将时间点复制存储在源中的数据，使得信息引用具有请求点的数据存储系统 及时复制数据。 如果该表指示所请求的时间点复制数据在目标上可用，则请求时间点的目标访问控制器复制数据在目标上; 否则通过对等通信链路接口从源中获得请求的时间点复制数据。

公开(公告)号：US06848021B2

公开(公告)日：2005-01-25

申请号：US09918713

申请日：2001-08-01

申请人： Danit Segev ,  Yoram Novick ,  Yigal Eisinger ,  Gabriel Walder ,  Olympia Gluck

发明人： Danit Segev ,  Yoram Novick ,  Yigal Eisinger ,  Gabriel Walder ,  Olympia Gluck

IPC分类号： G06F11/20 ,  G06F12/00

CPC分类号： G06F11/2071 ,  Y10S707/99953 ,  Y10S707/99955

摘要： A method for data backup includes creating a sidefile in a cache memory of a data storage system. Entries are added to the sidefile specifying copy operations to be respectively performed by copy services in the system, including at least first and second copy services of different, first and second types. The copy operations specified by the operations are then executed using the first and second copy services.

摘要翻译： 一种用于数据备份的方法包括在数据存储系统的高速缓冲存储器中创建副文件。 将条目添加到指定复制操作的副文件中，以分别由系统中的复制服务执行，包括不同的，第一和第二类型的至少第一和第二复制服务。 然后，使用第一和第二副本服务执行操作指定的复制操作。

公开(公告)号：US5594900A

公开(公告)日：1997-01-14

申请号：US409478

申请日：1995-03-22

申请人： Oded Cohn ,  Kenneth Nagin ,  Yoram Novick ,  Alex Winokur

发明人： Oded Cohn ,  Kenneth Nagin ,  Yoram Novick ,  Alex Winokur

IPC分类号： G06F12/00 ,  G06F11/14 ,  G06F12/16 ,  G11C29/00 ,  G06F13/14

CPC分类号： G06F11/2064 ,  G06F11/2071 ,  G06F2201/80 ,  G11C29/74 ,  Y10S707/99953

摘要： A backup method for a computer database system comprising maintaining a mirrored copy of the database at a remote location is characterized in that updates to the remote database data are delayed for a delay time greater than or equal to the upper limit on the data communication delay between the local location and the remote location and updates to a remote log for the database are executed after corresponding updates to a local log without said delay. In this way a consistent copy of the database may be recovered from the mirrored copy of the database and the remote log after destruction of the database system.

摘要翻译： 一种用于计算机数据库系统的备份方法，包括在远程位置维护数据库的镜像副本，其特征在于，对远程数据库数据的更新被延迟大于或等于数据通信延迟上限的延迟时间 本地位置和远程位置的更新以及对数据库的远程日志的更新将在对本地日志的相应更新后执行，而不会造成延迟。 以这种方式，在数据库系统销毁后，可以从数据库和远程日志的镜像副本中恢复数据库的一致副本。

公开(公告)号：US5448718A

公开(公告)日：1995-09-05

申请号：US871358

申请日：1992-04-20

申请人： Oded Cohn ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Alexander Winokur

发明人： Oded Cohn ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Alexander Winokur

IPC分类号： G06F12/00 ,  G06F11/14 ,  G06F12/16 ,  G06F11/20

CPC分类号： G06F11/1466 ,  Y10S707/99953 ,  Y10S707/99955

摘要： A data backup copying session on a data processing system is secured responsive to initiation of the data backup session by an application executing on a processing unit by generating a unique identifier for the data backup session. Thereafter, all member paths of a group of paths designated by the processing unit for communication between itself and the first storage subsystem are identified and associated with the data backup session. Access to the session is thereafter allowed only along a member path of the group of paths associated with the data backup session. The system and method of the invention further provide for fault recovery and protection against excessive demand on storage control unit memory.

摘要翻译： 响应于在处理单元上执行的应用程序启动数据备份会话，数据处理系统上的数据备份复制会话通过生成数据备份会话的唯一标识符来确保。 此后，由处理单元指定的用于自身与第一存储子系统之间的通信的一组路径的所有成员路径被识别并与数据备份会话相关联。 此后仅允许对与该数据备份会话相关联的路径组的成员路径进行访问。 本发明的系统和方法进一步提供了对存储控制单元存储器的过度需求的故障恢复和保护。

公开(公告)号：US5408656A

公开(公告)日：1995-04-18

申请号：US949673

申请日：1992-09-23

申请人： Oded Cohn ,  Michael H. Hartung ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Nimrod Rotics ,  Alexander Winokur ,  Efraim Zeidner

发明人： Oded Cohn ,  Michael H. Hartung ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Nimrod Rotics ,  Alexander Winokur ,  Efraim Zeidner

IPC分类号： G06F12/00 ,  G06F11/14 ,  G11B20/10 ,  G11B27/00 ,  G06F15/40 ,  G06F13/00

CPC分类号： G11B27/002 ,  G06F17/30091 ,  G06F17/30194 ,  G11B20/10 ,  Y10S707/99934

摘要： A method and system for efficiently accessing desired datasets among multiple datasets which are stored at specific data addresses within multiple storage subsystems which are coupled to a host system via a storage subsystem controller and a data channel. A data request is transmitted from the host system to the storage subsystems via the data channel. The data request specifies non-address attributes for desired datasets, such as boundary addresses for large data extents including many datasets or a request for all datasets modified since the occurrence of a specified event. The data request is then processed at the storage subsystem controller to determine a data address for each dataset within the storage subsystem which possess the desired attributes. Thereafter, the desired datasets are transmitted via the data channel to the host system in association with a specific address for each dataset. A selected status message is transmitted from the storage subsystem controller when no more datasets are located which possess the desired attributes. In this manner, the retrieval of data from a storage subsystem is greatly enhanced.

摘要翻译： 一种用于有效地访问存储在多个存储子系统内的特定数据地址的多个数据集中的期望数据集的方法和系统，其经由存储子系统控制器和数据信道耦合到主机系统。 数据请求通过数据通道从主机系统发送到存储子系统。 数据请求指定所需数据集的非地址属性，例如大数据扩展区的边界地址，包括许多数据集，或者是自发生指定事件以来修改的所有数据集的请求。 然后在存储子系统控制器处理数据请求，以确定具有所需属性的存储子系统内的每个数据集的数据地址。 此后，期望的数据集通过数据信道与每个数据集的特定地址相关联地发送到主机系统。 当不存在具有所需属性的更多数据集时，从存储子系统控制器发送所选择的状态消息。 以这种方式，从存储子系统检索数据大大增强。