公开(公告)号：US06678787B2

公开(公告)日：2004-01-13

申请号：US09745328

申请日：2000-12-21

申请人： Yael Petruschka ,  Erez Webman ,  Yoram Novick ,  Tal Sivan

发明人： Yael Petruschka ,  Erez Webman ,  Yoram Novick ,  Tal Sivan

IPC分类号： G06F1200

CPC分类号： G06F12/0866 ,  G06F11/1471 ,  G06F2212/312 ,  Y10S707/99953

摘要： System for the storage and maintenance of data sets updates in a storage subsystem, that comprises direct access storage device(s) that serves as the main storage of the storage subsystem and on which the data sets are originally stored; a Cache memory storage device that enables fast interaction with the storage subsystem, on which a copy of the data sets is stored; a non-volatile storage device partitioned into a plurality of fixed size non-volatile memory pages. The system employs an update process, in which the changes to the data sets are applied to the data set copy stored on the Cache memory device; a journal of the changes that are being made to the data sets stored on the Cache memory device, utilizing the non-volatile memory pages to store update records reflecting the changes in the data sets; a reconstruction process in which the data sets are reconstructed utilizing the update records stored on the non-volatile memory pages, and the data sets stored on the direct access storage device; and a process for freeing arbitrary non-volatile pages from their prior association with data sets that are stored in the Cache memory.

摘要翻译： 用于在存储子系统中存储和维护数据集更新的系统，其包括用作存储子系统的主存储并且最初存储数据集的直接存取存储设备; 缓存存储器存储设备，其能够与存储有数据集的副本的存储子系统进行快速交互; 分离成多个固定大小的非易失性存储器页的非易失性存储设备。 系统采用更新过程，其中对数据集的改变被应用于存储在高速缓冲存储器设备上的数据组副本; 对存储在高速缓冲存储器设备上的数据集进行改变的日志，利用非易失性存储器页存储反映数据集中的变化的更新记录; 使用存储在非易失性存储器页面上的更新记录和存储在直接存取存储设备上的数据集来重建数据集的重建过程; 以及从任何非易失性页面与先前与存储在高速缓存存储器中的数据集相关联的过程。

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：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：US08099396B1

公开(公告)日：2012-01-17

申请号：US12576363

申请日：2009-10-09

申请人： Yoram Novick ,  Erez Webman

发明人： Yoram Novick ,  Erez Webman

IPC分类号： G06F17/30

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：US20080243950A1

公开(公告)日：2008-10-02

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： G06F12/16

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：US07693886B1

公开(公告)日：2010-04-06

申请号：US11640019

申请日：2006-12-15

申请人： Yoram Novick ,  Erez Webman ,  Orly Devor

发明人： Yoram Novick ,  Erez Webman ,  Orly Devor

IPC分类号： G06F7/00

CPC分类号： G06F17/30902 ,  H04L67/1095

摘要： A delta query technique transmits only latest changes to data of objects from a server to one or more clients in response to a client query (request) to access the object data. A global counter is maintained for all of the objects served by the server. Every time the data of an object changes, a value of the global counter increments (updates) and the updated global counter value is then assumed (“inherited”) by that object. In addition, the global counter is updated when a client issues a request to access one or more objects. If the data of the objects has changed since the last time the client accessed the objects, the server responds with the latest object data and the updated global counter value. Notably, each client maintains a local counter having a value that, upon receipt of the latest object data, is modified to reflect the updated global counter value.

摘要翻译： 增量查询技术仅响应于访问对象数据的客户机查询（请求），将对对象数据的最新更改仅从服务器传输到一个或多个客户端。 维护服务器所服务的所有对象的全局计数器。 每次对象的数据更改时，全局计数器的值递增（更新），然后由该对象假定（“继承”）更新的全局计数器值。 另外，当客户端发出访问一个或多个对象的请求时，全局计数器被更新。 如果对象的数据自上次客户端访问对象以来发生变化，服务器将使用最新的对象数据和更新的全局计数器值进行响应。 值得注意的是，每个客户端维护本地计数器，其具有在接收到最新对象数据时被修改以反映更新的全局计数器值的值。

公开(公告)号：US20080243951A1

公开(公告)日：2008-10-02

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： G06F12/16

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：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。