公开(公告)号：US07620669B1

公开(公告)日：2009-11-17

申请号：US11640008

申请日：2006-12-15

申请人： Yoram Novick ,  Erez Webman

发明人： Yoram Novick ,  Erez Webman

IPC分类号： G06F17/30 ,  G06F17/00

CPC分类号： G06F17/30312 ,  G06F17/30227 ,  Y10S707/99953 ,  Y10S707/99955

摘要： A system and method enhances performance of a log adapted for use with a storage system. The log is illustratively organized into a plurality of regions, wherein each region comprises one or more entries and wherein each region is allocated to a consistency collection. As used herein, a consistency collection is defined as a set of one or more data containers among which it is desired to maintain transaction consistency, i.e., atomicity of updates of a transaction to those containers. Each entry of the region is adapted to store an update of data from a source, e.g., an application executing on the storage system. Thus, the consistency collection may comprise multiple data containers associated with one or more applications configured to maintain the atomicity of transaction updates to the collection of containers.

摘要翻译： 系统和方法提高适用于存储系统的日志的性能。 日志被示例性地组织成多个区域，其中每个区域包括一个或多个条目，并且其中每个区域被分配给一致性集合。 如本文所使用的，一致性集合被定义为一组一个或多个数据容器，其中希望维持事务一致性，即事务更新到这些容器的原子性。 该区域的每个条目适于存储来自源的数据的更新，例如在存储系统上执行的应用。 因此，一致性集合可以包括与被配置为将事务更新的原子性维持到容器的集合的一个或多个应用相关联的多个数据容器。

公开(公告)号：US06189079B1

公开(公告)日：2001-02-13

申请号：US09083750

申请日：1998-05-22

申请人： William Frank Micka ,  Yoram Novick

发明人： William Frank Micka ,  Yoram Novick

IPC分类号： G06F1206

CPC分类号： G06F11/2071

摘要： Disclosed is a system for copying data sets from a first storage device to a second storage device. The first storage device is managed by a first controller and the second storage device is managed by a second controller. The first controller receives a command to copy a plurality of data sets from the first storage device to the second storage device. First and second data structures are generated to include fields corresponding to the data sets. The fields initially indicate that the data sets have not been copied. For the data sets subject to the copy command, the first controller transfers a copy of the data set to the second controller. The second controller stores the copy of the data set received from the first controller in the second storage device. The field in the first data structure corresponding to the data set copied to the second storage device is then modified to indicate that the data set was copied to the second storage device. The field in the second data structure corresponding to the data set the second controller stores in the second storage device is also modified to indicate that the data set was stored in the second storage device.

摘要翻译： 公开了一种用于将数据集从第一存储装置复制到第二存储装置的系统。 第一存储设备由第一控制器管理，第二存储设备由第二控制器管理。 第一控制器接收从第一存储装置将多个数据组复制到第二存储装置的命令。 生成第一和第二数据结构以包括对应于数据集的字段。 这些字段最初表示数据集尚未被复制。 对于受复制命令影响的数据集，第一个控制器将数据集的副本传送到第二个控制器。 第二控制器将从第一控制器接收的数据集的副本存储在第二存储装置中。 然后修改与复制到第二存储设备的数据集相对应的第一数据结构中的字段以指示数据集被复制到第二存储设备。 与第二控制器存储在第二存储装置中的数据组对应的第二数据结构中的字段也被修改以指示数据集存储在第二存储装置中。

公开(公告)号：US5493724A

公开(公告)日：1996-02-20

申请号：US41376

申请日：1993-04-01

申请人： Oded Cohn ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Udi N. Rotics ,  Alexander Winokur ,  Efraim Zeidner

发明人： Oded Cohn ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Udi N. Rotics ,  Alexander Winokur ,  Efraim Zeidner

IPC分类号： G06F3/06 ,  G06F12/08 ,  G06F13/16 ,  G06F13/14 ,  G06F12/02

CPC分类号： G06F13/16 ,  G06F12/0866

摘要： A method and apparatus for improving storage controller throughput when servicing non-specific read requests. Throughput is increased by enabling the storage controller to service non-specific read requests issued against a device address which is not the same as the device address associated with the data that the non-specific read is requesting. The device address associated with the data is thus free to be used for another I/O operation. When the device address used by the non-specific read is a non-busy type (that is, the device and/or data is not locked) then the throughput improvement is obtained by increasing the number of data requests that may be concurrently handled by the storage controller.

摘要翻译： 一种用于在维护非特定读请求时改善存储控制器吞吐量的方法和装置。 通过使存储控制器能够服务针对与非特定读取请求的数据相关联的设备地址不同于设备地址的非特定读请求来增加吞吐量。 因此与数据相关联的设备地址可以自由地用于另一个I / O操作。 当非特定读取使用的设备地址是非忙类型（即，设备和/或数据未被锁定）时，通过增加可以同时处理的数据请求的数量来获得吞吐量改进 存储控制器。

公开(公告)号：US08150800B2

公开(公告)日：2012-04-03

申请号：US11692659

申请日：2007-03-28

申请人： Erez Webman ,  Yoram Novick

发明人： Erez Webman ,  Yoram Novick

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F11/14

摘要： An advanced clock synchronization technique is adapted for use with a replication service in a data backup and recovery storage environment. The storage environment includes a plurality of source storage systems and target storage systems, wherein the source storage systems are illustratively embodied as source replication nodes. The advanced clock synchronization technique establishes a software-only, loosely-accurate global clock based on a timestamp and an associated error boundary. Notably, the timestamp and its error boundary are used as global clock information to enable synchronization (i.e., ordering of storage requests) among the source replication nodes and/or the target storage systems, thereby ensuring consistent replication of the storage requests on the target storage systems.

摘要翻译： 高级时钟同步技术适用于数据备份和恢复存储环境中的复制服务。 存储环境包括多个源存储系统和目标存储系统，其中源存储系统被说明性地体现为源复制节点。 高级时钟同步技术基于时间戳和相关的错误边界建立了仅软件，松散精确的全局时钟。 值得注意的是，时间戳及其错误边界被用作全局时钟信息，以使能源复制节点和/或目标存储系统之间的同步（即，存储请求的排序），从而确保存储请求在目标存储上的一致复制 系统。

公开(公告)号：US07925629B2

公开(公告)日：2011-04-12

申请号：US11692668

申请日：2007-03-28

申请人： Erez Webman ,  Yoram Novick ,  Dvir Koren

发明人： Erez Webman ,  Yoram Novick ,  Dvir Koren

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F11/14 ,  G06F11/2064 ,  G06F11/2071 ,  G06F11/2074 ,  Y10S707/959

摘要： A write ordering style asynchronous replication service utilizes a loosely-accurate global clock in a data backup and recovery storage environment. The storage environment includes a set of source storage systems illustratively embodied as source replication nodes that cooperate to maintain a consistency group that may span multiple geographical sites. The storage environment also includes one or more target storage systems illustratively embodied as target replication nodes configured to service the consistency group. The write ordering style service utilizes the loosely-accurate global clock to provide consistent replication of a storage space of the consistency group.

摘要翻译： 写入排序样式异步复制服务在数据备份和恢复存储环境中使用松散精确的全局时钟。 存储环境包括一组源存储系统，其示意性地体现为协作以维护可跨越多个地理站点的一致性组的源复制节点。 存储环境还包括一个或多个目标存储系统，其示意性地体现为被配置为服务一致性组的目标复制节点。 写订单样式服务使用松散精确的全局时钟来提供一致性组的存储空间的一致复制。

公开(公告)号：US07133989B2

公开(公告)日：2006-11-07

申请号：US10839034

申请日：2004-05-05

申请人： Helena Cornelia Burton ,  Michael E Factor ,  Timothy Alan Griffin ,  Thomas Charles Jarvis ,  William Frank Micka ,  Yoram Novick ,  Gail Andrea Spear ,  Sam Clark Werner

发明人： Helena Cornelia Burton ,  Michael E Factor ,  Timothy Alan Griffin ,  Thomas Charles Jarvis ,  William Frank Micka ,  Yoram Novick ,  Gail Andrea Spear ,  Sam Clark Werner

IPC分类号： G06F11/00

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：US07096382B2

公开(公告)日：2006-08-22

申请号：US10090488

申请日：2002-03-04

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：USRE37364E1

公开(公告)日：2001-09-11

申请号：US08521712

申请日：1995-08-31

申请人： Oded Cohn ,  Michael Howard Hartung ,  William Frank Micka ,  John Norbert McCauley, Jr. ,  Claus William Mikkelsen ,  Kenneth Michael Nagin ,  Yoram Novick ,  Alexander Winokur

发明人： Oded Cohn ,  Michael Howard Hartung ,  William Frank Micka ,  John Norbert McCauley, Jr. ,  Claus William Mikkelsen ,  Kenneth Michael Nagin ,  Yoram Novick ,  Alexander Winokur

IPC分类号： G06F1100

CPC分类号： G06F11/1466 ,  G06F11/1458 ,  G06F11/1461 ,  G06F11/1469

摘要： A method and system are disclosed for enhanced efficiency of backup copying of designated datasets stored within a plurality of storage devices coupled to the data processing system via a storage subsystem control unit having subsystem memory therein. Application execution within the data processing system is temporarily suspended long enough to form a dataset logical-to-physical system address concordance to be utilized to administer copying of the designated dataset. Thereafter, application initiated updates to uncopied portions of the designated datasets are temporarily deferred until sidefiles of the affected portions of the designated datasets are written to subsystem memory. The updates are then written to the storage subsystem. Portions of the designated datasets are then accessed and copied from the storage subsystem on a scheduled or opportunistic basis utilizing selected data retrieval command sequences. A sidefile status query is appended to selected data retrieval command sequences and the presence of data within the subsystem memory is determined without the necessity of additional communications between the data processing system and the storage subsystem. The sidefiles are then accessed and copied. Copied portions of the designated datasets and sidefiles are then copied to alternate storage locations in a backup copy order defined by the address concordance.

摘要翻译： 公开了一种方法和系统，用于通过其中具有子系统存储器的存储子系统控制单元提高存储在与数据处理系统耦合的多个存储设备中的指定数据集的备份复制效率。 数据处理系统内的应用程序执行暂时被暂停，以形成用于管理指定数据集复制的数据集逻辑到物理系统地址一致性。 此后，临时延迟对指定数据集的未封闭部分的应用发起的更新，直到指定数据集的受影响部分的副文件被写入子系统存储器。 然后将更新写入存储子系统。 然后使用所选择的数据检索命令序列，以预定的或机会的方式从存储子系统访问和复制指定数据集的一部分。 辅助文件状态查询被附加到所选择的数据检索命令序列，并确定子系统存储器内的数据的存在，而不需要数据处理系统和存储子系统之间的附加通信。 然后访问和复制文件。 指定数据集和副文件的复制部分然后以地址一致性定义的备份复制顺序复制到备用存储位置。

公开(公告)号：US5659677A

公开(公告)日：1997-08-19

申请号：US486453

申请日：1995-06-07

申请人： Oded Cohn ,  Yoram Novick ,  Michael Rodeh ,  Alex Winokur

发明人： Oded Cohn ,  Yoram Novick ,  Michael Rodeh ,  Alex Winokur

IPC分类号： G06F11/10 ,  G11B5/48

CPC分类号： G06F11/1076 ,  G11B5/4813

摘要： A data storage disk device for a RAID disk array is disclosed, comprising a rotatably mounted disk having a data storage surface; a first head for reading data from and writing data to the data storage surface; with a second head for reading data from the data storage surface; and control means for executing a write operation to a sector, said write operation including reading the contents of the sector via the second head for subsequent processing and writing new data to the sector via the first head, the first and second heads being arranged with respect to the data storage surface so that the new data can be written to the sector on the same revolution of the disk as the reading operation. The addition of a second head to the disk storage device improves performance of the disk device for RAID applications.

摘要翻译： 公开了一种用于RAID盘阵列的数据存储盘装置，包括具有数据存储表面的可旋转地安装的盘; 用于从数据存储表面读取数据并将数据写入数据存储表面的第一个头; 用于从数据存储表面读取数据的第二个头; 以及用于对扇区执行写入操作的控制装置，所述写入操作包括经由第二头读取扇区的内容以用于后续处理，并且经由第一头将新数据写入扇区，第一和第二头相对于 到数据存储表面，使得新数据可以在与读取操作相同的盘旋转时写入扇区。 向磁盘存储设备添加第二个磁头可以提高RAID应用程序的磁盘设备的性能。

公开(公告)号：US5375232A

公开(公告)日：1994-12-20

申请号：US949665

申请日：1992-09-23

申请人： Vernon J. Legvold ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Pnina A. Vortman ,  Elfraim Zeidner

发明人： Vernon J. Legvold ,  William F. Micka ,  Kenneth M. Nagin ,  Yoram Novick ,  Pnina A. Vortman ,  Elfraim Zeidner

IPC分类号： G06F11/14 ,  G06F11/00

CPC分类号： G06F11/1466

摘要： A method and system are disclosed for transferring a backup copy of designated datasets stored in a plurality of storage subsystems to a host system via a 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 for the designated datasets is formed and execution of the application is resumed thereafter. Any application initiated updates to affected portions of the designated datasets which occur prior to generation of a backup copy of the affected portions of the datasets are processed by buffering the updates, copying the affected portions to storage subsystem memory, updating the address concordance and writing the updates to the affected portions of the dataset. The remaining portions of the designated datasets are then copied to storage system memory from the storage subsystem on an asynchronous basis and an attention signal is transmitted to the host system when a lower threshold level is achieved. If an upper threshold level within the storage subsystem memory is achieved, the asynchronous copying of the designated datasets is temporarily suspended. The stored portions of the designated datasets are then transferred from storage subsystem memory to the host system at channel speeds, greatly enhancing the efficiency of data transfer.

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经由数据通道将存储在多个存储子系统中的指定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。 形成指定数据集的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。 对生成数据集的受影响部分的备份副本之前发生的指定数据集的受影响部分的任何应用程序启动的更新将通过缓存更新来处理，将受影响的部分复制到存储子系统存储器，更新地址一致性以及写入 对数据集的受影响部分的更新。 指定数据集的剩余部分然后以异步方式从存储子系统复制到存储系统存储器，并且当实现较低的阈值电平时，将注意信号发送到主机系统。 如果达到存储子系统存储器内的上限阈值，则指定数据集的异步复制暂时中止。 指定数据集的存储部分然后以信道速度从存储子系统存储器传送到主机系统，大大提高了数据传输的效率。