公开(公告)号：US08578204B1

公开(公告)日：2013-11-05

申请号：US12930121

申请日：2010-12-29

申请人： Eugene Ortenberg ,  Bradford B. Glade ,  Dale Hagglund ,  Benjamin Yoder ,  David Meiri ,  Dan Arnon ,  Dharmesh Thakkar

发明人： Eugene Ortenberg ,  Bradford B. Glade ,  Dale Hagglund ,  Benjamin Yoder ,  David Meiri ,  Dan Arnon ,  Dharmesh Thakkar

IPC分类号： G06F11/07

CPC分类号： G06F11/1425

摘要： A system for managing distributed storage includes a collection of one or more compute sites that are connected and that perform a joint computation. A witness node is connected to the one or more compute sites. A membership service allows a change in collection membership, in response to a failure, to continue the joint computation without causing data inconsistency or corruption. If the membership service is unable to reach a decision on the change in collection membership in response to the failure, the witness node controls the decision on the change in collection membership to continue the joint computation. A distributed storage system provided by the system described herein may advantageously meet consistency guarantees and maximize data access even when individual compute sites and/or their interconnects fail.

摘要翻译： 用于管理分布式存储的系统包括连接并执行联合计算的一个或多个计算站点的集合。 证人节点连接到一个或多个计算站点。 会员服务允许更改收集成员资格以响应失败，继续联合计算，而不会导致数据不一致或损坏。 如果会员服务无法就故障对收款成员资格的变更作出决定，则证人节点控制收款成员资格变更的决定，以继续进行联合计算。 由本文描述的系统提供的分布式存储系统可以有利地满足一致性保证，并且即使当各个计算站点和/或其互连失败时也最大化数据访问。

公开(公告)号：US08732124B1

公开(公告)日：2014-05-20

申请号：US13429504

申请日：2012-03-26

申请人： Dan Arnon ,  David Meiri ,  Mark Halstead ,  Benjamin Yoder ,  Oliver M. D. Shorey

发明人： Dan Arnon ,  David Meiri ,  Mark Halstead ,  Benjamin Yoder ,  Oliver M. D. Shorey

IPC分类号： G06F17/30

CPC分类号： G06F17/30578 ,  G06F11/00 ,  G06F11/1464

摘要： Handling asynchronous data provided by at least two sources includes synchronizing data between the at least two sources, coordinating cycle switching between the at least two sources, where an asynchronous cycle of data from one of the sources corresponds to an asynchronous cycle of data from an other one of the sources, receiving asynchronous data corresponding to a data cycle from at least one of the sources, and saving at least some of the received data. A first portion of data for a particular cycle may be transmitted from one of the sources and a second portion of data for the particular cycle, different from the first portion of data, may be transmitted from an other one of the sources and the first portion and the second portion together may correspond to all of the data for the particular cycle.

摘要翻译： 处理由至少两个源提供的异步数据包括在至少两个源之间同步数据，协调至少两个源之间的周期切换，其中来自一个源的数据的异步周期对应于来自另一个源的数据的异步周期 其中一个源，从至少一个源接收对应于数据周期的异步数据，并且保存至少一些所接收的数据。 用于特定周期的数据的第一部分可以从源之一发送，并且与数据的第一部分不同的特定周期的第二数据部分可以从源中的另一个发送，并且第一部分 并且第二部分在一起可以对应于特定周期的所有数据。

公开(公告)号：US09110693B1

公开(公告)日：2015-08-18

申请号：US12932080

申请日：2011-02-17

申请人： David Meiri ,  Balakrishnan Ganeshan ,  Muralidhar Balcha ,  Dan Arnon

发明人： David Meiri ,  Balakrishnan Ganeshan ,  Muralidhar Balcha ,  Dan Arnon

IPC分类号： G06F9/455 ,  G06F9/48

CPC分类号： G06F9/455 ,  G06F9/45558 ,  G06F9/4856 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45575

摘要： Migrating an active VM from a first data center to a second data center having a passive counterpart of the active VM includes freezing the active VM at the first data center, creating an active VM at the second data center that corresponds to the passive counterpart, and restarting the active VM at the second data center. Migrating an active VM from a first data center to a second data center may also include waiting for the passive counterpart to be synchronized with the active VM at the first data center prior to converting the passive counterpart. Creating the active VM at the second data center may include providing a snapshot of a volume containing the passive VM.

摘要翻译： 将活动虚拟机从第一数据中心迁移到具有活动虚拟对象的被动对象的第二数据中心包括在第一数据中心处冻结活动虚拟机，在对应于被动对象的第二数据中心处创建活动虚拟机，以及 在第二个数据中心重新启动活动的虚拟机。 将活动虚拟机从第一数据中心迁移到第二数据中心还可以包括在转换被动对方之前等待被动对象与第一数据中心处的活动虚拟机同步。 在第二个数据中心创建活动虚拟机可能包括提供包含被动虚拟机的卷的快照。

公开(公告)号：US08966211B1

公开(公告)日：2015-02-24

申请号：US13329758

申请日：2011-12-19

申请人： Dan Arnon ,  David Meiri

发明人： Dan Arnon ,  David Meiri

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

CPC分类号： G06F13/102

摘要： Described are techniques for performing dynamic binding of device identifiers to data storage devices. A first device identifier assigned to an application on a host is received. The first device identifier is a unique detachable device identifier dynamically bound to different data storage devices at different points in time in accordance with data storage devices used by the application. The first device identifier is attached to a first data storage device of the data storage system used by the application at a first point in time. The first device identifier is detached from the first data storage device thereby making the first data storage device unavailable for data operations from the application. The first device identifier is attached to a second data storage device used by the application at a second point in time thereby making the second data storage device available for data operations from the application.

摘要翻译： 描述了用于执行设备标识符到数据存储设备的动态绑定的技术。 接收分配给主机上的应用的第一设备标识符。 第一设备标识符是根据应用使用的数据存储设备在不同时间点动态地绑定到不同数据存储设备的唯一的可拆卸设备标识符。 第一设备标识符附加到应用在第一时间点使用的数据存储系统的第一数据存储设备。 第一设备标识符与第一数据存储设备分离，从而使得第一数据存储设备不可用于来自应用的数据操作。 第一设备标识符附加到在第二时间点由应用使用的第二数据存储设备，从而使第二数据存储设备可用于来自应用的数据操作。

公开(公告)号：US08838849B1

公开(公告)日：2014-09-16

申请号：US13314849

申请日：2011-12-08

申请人： David Meiri ,  Dan Arnon

发明人： David Meiri ,  Dan Arnon

IPC分类号： G06F13/20

CPC分类号： G06F13/385

摘要： Sharing at least one link among a plurality of processes includes determining a capacity of the at least one link based on a number of I/O operations per unit time supported by the at least one link as a function of the amount of data provided by each of the I/O operations, determining a requirement of each of the processes based on user specifications and an amount of data provided by each I/O operation for each of the processes, and apportioning link capacity among the processes according to the requirement of each of the processes. In response to a sum of requirements for each of the processes being less than the capacity of the at least one link, additional link capacity may be provided to at least some of the processes.

摘要翻译： 在多个处理中共享至少一个链路包括基于由至少一个链路支持的每单位时间的I / O操作的数量来确定至少一个链路的容量，作为由每个链路提供的数据量的函数 的I / O操作，根据用户规格确定每个进程的要求，以及根据每个进程的每个I / O操作提供的数据量，以及根据每个进程的要求在进程之间分配链路容量 的过程。 响应于每个过程的要求的总和小于至少一个链路的容量的总和，可以向至少一些进程提供额外的链路容量。

公开(公告)号：US20070198668A1

公开(公告)日：2007-08-23

申请号：US11627000

申请日：2007-01-25

申请人： David Meiri ,  Dan Arnon ,  Mark Halstead ,  Peter Kamvysselis

发明人： David Meiri ,  Dan Arnon ,  Mark Halstead ,  Peter Kamvysselis

IPC分类号： G06F15/177

CPC分类号： H04L67/1095 ,  G06F11/20 ,  G06F11/201 ,  G06F11/2071 ,  H04L67/1097

摘要： A mechanism to support remote mirroring of storage devices by data storage systems in a one-to-many switched environment. Each data storage system includes a disk director that is adapted to control at least one device group that is supported in a mirrored configuration with a corresponding device group controlled by one of the other data storage systems. For each device group and corresponding device group, there are first ports associated with the device group and second ports associated with the corresponding device group. A switch element is adapted to connect one of the first ports to at least one of the second ports so that data may be exchanged between the ports for each device group and corresponding device group. The disk director selects which first port is to be connected to which second port via the switch element in the establishment of a logical link. Thus, each port connected to the switch is capable of achieving multiple connections to multiple destinations for increased connectivity, redundancy and performance (load balance) without additional hardware.

摘要翻译： 支持数据存储系统在一对多交换环境中远程镜像存储设备的机制。 每个数据存储系统包括磁盘引导器，该磁盘引导器适于控制被镜像配置中支持的至少一个设备组与由其他数据存储系统之一控制的相应设备组。 对于每个设备组和相应的设备组，都有与设备组相关联的第一个端口和与相应设备组相关联的第二个端口。 开关元件适于将第一端口中的一个连接到至少一个第二端口，使得可以在用于每个设备组和相应设备组的端口之间交换数据。 在建立逻辑链路时，磁盘控制器通过交换机元件选择要连接到哪个第二端口的第一端口。 因此，连接到交换机的每个端口能够实现多个连接到多个目的地，以增加连接性，冗余和性能（负载平衡），而无需额外的硬件。

公开(公告)号：US06553464B1

公开(公告)日：2003-04-22

申请号：US09801252

申请日：2001-03-07

申请人： Peter Kamvysselis ,  Dan Arnon ,  David Meiri ,  Mark J. Halstead

发明人： Peter Kamvysselis ,  Dan Arnon ,  David Meiri ,  Mark J. Halstead

IPC分类号： G06F1516

CPC分类号： H04L29/06 ,  H04L67/10 ,  H04L67/2842 ,  H04L69/329

摘要： Providing data from a volume of a remote storage device coupled to a local storage device that is coupled to a host, includes providing a command to the remote storage device to request the data, if the data is stored in a cache portion of the remote storage device, the remote storage device providing the data, and if the data is not stored in the cache portion of the remote storage device, the remote storage device causing the data to be fetched from the volume and returning one of: a disconnect or an indicator that the data was not found. Causing the data to be fetched from the volume may include creating a separate wait task that waits for the data to be fetched from the volume. The separate wait task may be created only if there is not already another wait task waiting for the same data. The wait task may post an error if the data is not fetched after a predetermined amount of time, such as four seconds. An error may be posted if the data is not fetched after a predetermined amount of time, such as eight seconds. After the data has been fetched from the volume, the remote storage device may provide a reconnect command followed by the data.

摘要翻译： 从耦合到与主机耦合的本地存储设备的远程存储设备的卷的数据提供数据包括向所述远程存储设备提供命令以请求所述数据，如果所述数据被存储在所述远程存储器的高速缓存部分中 设备，提供数据的远程存储设备，以及如果数据未被存储在远程存储设备的高速缓存部分中，则远程存储设备使数据从卷中获取并返回以下之一：断开或指示符 没有找到数据。 导致从卷中获取的数据可能包括创建等待从卷中获取的数据的单独的等待任务。 只有当尚未有其他等待任务等待相同数据时，才能创建单独的等待任务。 如果在预定的时间量（例如四秒）之后未获取数据，则等待任务可能发布错误。 如果在预定的时间（例如8秒）之后未获取数据，则可能会发布错误。 从卷中取出数据后，远程存储设备可以提供重新连接命令，后跟数据。

公开(公告)号：US08977826B1

公开(公告)日：2015-03-10

申请号：US13338788

申请日：2011-12-28

申请人： David Meiri ,  Dan Arnon ,  Benjamin W. Yoder ,  Mark J. Halstead ,  Assaf Natanzon

发明人： David Meiri ,  Dan Arnon ,  Benjamin W. Yoder ,  Mark J. Halstead ,  Assaf Natanzon

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F11/20 ,  G06F3/06 ,  G06F11/14

CPC分类号： G06F11/2056 ,  G06F3/0611 ,  G06F3/065 ,  G06F3/067 ,  G06F11/1471 ,  G06F11/2064 ,  G06F11/2066 ,  G06F11/2074 ,  G06F2201/855

摘要： A method, system, and computer program product for ordering a plurality of data IO captured at a primary site to be applied at a secondary site, comprising removing the one or more extent level portions from the captured data IO, determining if the one or more extent level portions are time sequenced to overwrite a portion of data of the data IO, based on a determination that the portion data is to be overwritten, removing the overwritten portion of data from the plurality of the data IO and ordering the one or more extent level portions to be applied at the secondary site before the captured data IO.

摘要翻译： 一种方法，系统和计算机程序产品，用于对在主站点捕获的多个数据IO进行排序以应用于辅助站点，包括从所捕获的数据IO移除所述一个或多个盘区级别部分，确定所述一个或多个 基于要重写部分数据的确定，从多个数据IO中移除数据的重写部分并对一个或多个范围进行排序，扩展级别部分被时间排序以重写数据IO的一部分数据 在捕获的数据IO之前在次要站点应用的级别部分。

公开(公告)号：US08782357B2

公开(公告)日：2014-07-15

申请号：US11268158

申请日：2005-11-07

申请人： Mark J. Halstead ,  Dan Arnon ,  David Meiri

发明人： Mark J. Halstead ,  Dan Arnon ,  David Meiri

IPC分类号： G06F12/00

CPC分类号： G06F3/0665 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/1666 ,  G06F11/20 ,  G06F11/2069 ,  Y10S707/99953 ,  Y10S707/99954

摘要： Reversing a communication path between a first volume on a first storage device and a second volume on a second storage device includes suspending communication between the first and second volumes while maintaining operations for other volumes of the storage devices, causing the first volume to change from a source volume to a destination volume without destroying the first volume, causing the second volume to change from a destination volume to a source volume without destroying the second volume, and resuming communication between the first and second volumes. Causing the first volume to change from a source volume to a destination volume may include modifying a table of the first storage device. Causing the second volume to change from a source volume to a destination volume may include modifying a table of the second storage device.

摘要翻译： 将第一存储设备上的第一卷和第二存储设备上的第二卷之间的通信路径反转包括暂停在第一和第二卷之间的通信，同时维护其他卷的存储设备的操作，从而使第一卷从 源卷到目标卷，而不会破坏第一个卷，导致第二个卷从目标卷更改为源卷，而不会破坏第二个卷，并恢复第一个和第二个卷之间的通信。 使第一卷从源卷更改为目标卷可能包括修改第一个存储设备的表。 使第二卷从源卷更改为目的地卷可能包括修改第二个存储设备的表。

公开(公告)号：US07702871B1

公开(公告)日：2010-04-20

申请号：US11897686

申请日：2007-08-31

申请人： Dan Arnon ,  David Meiri

发明人： Dan Arnon ,  David Meiri

IPC分类号： G06F12/00

CPC分类号： G06F11/2066 ,  G06F3/0611 ,  G06F3/0614 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/2074

摘要： A system for controlling the pacing of host data writes in response to changing system conditions allows for the use of variably controlled delays that facilitate asynchronous replication with bounded lag and smooth steady-state performance. Adding delay to the writes slows down the host and dampens activity spikes. A first storage device receives a write request, transmits data to a second storage device, and acknowledges the write request. An amount of additional write response time is controlled between when the write request is received and when the write request is acknowledged by the first storage device, where the amount of additional write response time is controlled according to system parameters including an amount of lag time between when the write request is received and when the write request is committed at the second storage device.

摘要翻译： 用于控制主机数据写入的响应于系统条件变化的系统允许使用可变控制的延迟，其有助于具有有界滞后和平滑稳态性能的异步复制。 添加延迟写入会减慢主机并减少活动尖峰。 第一存储装置接收写请求，向第二存储装置发送数据，并确认写请求。 在写入请求被接收时和当第一存储设备确认写入请求之间时，控制附加的写入响应时间量，其中根据系统参数来控制附加的写入响应时间量，包括一个滞后时间量 当写入请求被接收时和在第二存储设备处提交写入请求时。