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1. 发明授权

US08880821B1 Determining whether to migrate from a source storage device to a target storage device 有权
标题翻译：确定是否从源存储设备迁移到目标存储设备
公开(公告)号：US08880821B1
公开(公告)日：2014-11-04
申请号：US13536474
申请日：2012-06-28
申请人： Weiqun Li , Subin George , Arieh Don
发明人： Weiqun Li , Subin George , Arieh Don
IPC分类号： G06F12/16
CPC分类号： G06F3/0647 , G06F3/061 , G06F3/067 , G06F11/1662
摘要： Determining whether to migrate from a source storage device to a target storage device includes determining if the target storage device is accessible by hosts that access the source storage device, determining if reservation information stored on the target storage device matches reservation information stored on the source storage device and migrating from the source storage device to the target storage device if the target storage device is accessible by hosts that access the source storage device and reservation information stored on the target storage device matches reservation information stored on the source storage device. Determining whether to migrate from a source storage device to a target storage device may also include, in response to initially determining that the reservation information stored on the target storage device does not match the reservation information stored on the source storage device, attempting to match the reservation information.
摘要翻译：确定是否从源存储设备迁移到目标存储设备包括确定目标存储设备是否可由访问源存储设备的主机访问，确定存储在目标存储设备上的预留信息是否匹配存储在源存储器上的预约信息设备，并且如果目标存储设备可以由访问源存储设备的主机访问并且存储在目标存储设备上的预约信息与存储在源存储设备上的预约信息相匹配，则从源存储设备迁移到目标存储设备。确定是否从源存储设备迁移到目标存储设备还可以包括响应于最初确定存储在目标存储设备上的预约信息与存储在源存储设备上的预留信息不匹配，尝试匹配预订信息。

2. 发明授权

US08832325B1 Transfer between storage devices 有权
标题翻译：存储设备之间的转移
公开(公告)号：US08832325B1
公开(公告)日：2014-09-09
申请号：US13536424
申请日：2012-06-28
申请人： Subin George , Michael J. Scharland , Arieh Don
发明人： Subin George , Michael J. Scharland , Arieh Don
IPC分类号： G06F3/00 , G06F15/16
CPC分类号： G06F3/067 , G06F3/0617 , G06F3/0647
摘要： Migrating data from a source storage device to a target storage device includes creating new paths to the target storage device, setting the target storage device to a state where I/O operations are initially accepted, where accepted I/O operations are rejected some time after acceptance, setting the source storage device to a state where at least some I/O operations are rejected, transferring metadata corresponding to the source storage device to the target storage device, where state information is transferred from the source storage device to the target storage device and setting the target storage device to a state where I/O operations are accepted and performed. Migrating data from a source storage device to a target storage device may also include creating new volumes on the target storage device and transferring data from the source storage device to the target storage device.
摘要翻译：将数据从源存储设备迁移到目标存储设备包括创建到目标存储设备的新路径，将目标存储设备设置为初始接受I / O操作的状态，其中接受的I / O操作在一段时间后被拒绝将源存储设备设置为至少一些I / O操作被拒绝的状态，将与源存储设备相对应的元数据传送到目标存储设备，其中状态信息从源存储设备传送到目标存储设备并将目标存储设备设置为接受和执行I / O操作的状态。将数据从源存储设备迁移到目标存储设备还可以包括在目标存储设备上创建新卷并将数据从源存储设备传送到目标存储设备。

3. 发明授权

US09927979B1 Data compression using constant number-of-track-groups and thin provisioning clone target 有权
公开(公告)号：US09927979B1
公开(公告)日：2018-03-27
申请号：US13363893
申请日：2012-02-01
申请人： Arieh Don , Alexandr Veprinsky , Jeremy J. O'Hare , John T. Fitzgerald
发明人： Arieh Don , Alexandr Veprinsky , Jeremy J. O'Hare , John T. Fitzgerald
IPC分类号： G06F15/16 , G06F3/06 , G06F17/30
CPC分类号： G06F3/0608 , G06F3/0626 , G06F17/3015
摘要： For a data copying operation, data compression using constant number-of-track-groups and a thinly provisioned target device facilitates incremental updates where the size of the compressed data on the target device changes. Compressed data is written to the same LBA as the beginning of the source device chunk cluster LBA (1:1 mapping of data start). A termination string or other demarking device is used to identify space freed on the target device resulting from compression. During an incremental update only changed chunk clusters are changed, and freed space is changed accordingly if necessary.

4. 发明授权

US09323750B2 Storage array snapshots for logged access replication in a continuous data protection system 有权
标题翻译：用于连续数据保护系统中记录访问复制的存储阵列快照
公开(公告)号：US09323750B2
公开(公告)日：2016-04-26
申请号：US13684656
申请日：2012-11-26
申请人： Assaf Natanzon , Arieh Don , David Meiri
发明人： Assaf Natanzon , Arieh Don , David Meiri
IPC分类号： G06F17/30 , G06F11/20
CPC分类号： G06F17/30008 , G06F11/2069 , G06F11/2074 , G06F11/2082 , G06F2201/855
摘要： In one aspect, a method includes providing a continuous data protection system comprising a data protection appliance, a splitter and source volumes on a source side that are replicated to target volumes of a storage array on a target side by using a journal of write transactions; and enabling, in an image access mode, a rolling back of the target volumes on the target side from a first point in time to a selected point in time so that the target volumes contain data for the selected point in time. The selected point in time is earlier than the first point in time and the rolling back includes undoing write transactions in the journal subsequent to the selected point in time; enabling generation of a virtual snapshot of the target volumes for the selected point in time after rolling back the target volumes to the selected point in time; and enabling a user to access the virtual snapshot in the storage array at the selected point in time.
摘要翻译：一方面，一种方法包括提供连续的数据保护系统，其包括数据保护装置，源侧的分离器和源卷，其通过使用写入事务的日志复制到目标侧上的存储阵列的目标卷; 并且在图像访问模式下，使目标侧的目标卷从第一时间点到所选择的时间点回滚，使得目标卷包含所选择的时间点的数据。所选择的时间点早于第一时间点，并且回滚包括在所选择的时间点之后的日志中撤销写入事务; 使得在将目标卷滚动到所选择的时间点之后，为所选择的时间点生成目标卷的虚拟快照; 并使用户能够在所选择的时间点访问存储阵列中的虚拟快照。

5. 发明授权

US08898519B1 Method and apparatus for an asynchronous splitter 有权
标题翻译：异步分离器的方法和装置
公开(公告)号：US08898519B1
公开(公告)日：2014-11-25
申请号：US13436717
申请日：2012-03-30
申请人： Assaf Natanzon , Arieh Don
发明人： Assaf Natanzon , Arieh Don
IPC分类号： G06F11/00
CPC分类号： G06F11/2079 , G06F11/2082 , G06F2201/84 , G06F2201/855
摘要： Example embodiments of the present invention provide asynchronous splitting of IOs from a storage array, such as a Symmetrix by EMC Corporation of Hopkinton, Mass. to a replication appliance, such as RecoverPoint by EMC Corporation of Hopkinton, Mass. The storage array may receive a plurality of IOs from a host and may store a record (e.g., in an ordered table) associated with the IOs. At a later time, the storage array may provide the IOs according to the record associated with the IOs. For example, the storage array may receive a plurality of Small Computer System Interface (SCSI) Command Descriptor Blocks (CDBs) from one or more hosts and receive data associated with the CDBs. The storage array then may write the data to respective locations in storage and create entries in the ordered table according to the order in which the CDBs were received.
摘要翻译：本发明的示例实施例提供了从存储阵列（例如，由Mass Corporation的Hopkinton的EMC Corporation的Symmetrix）到复制设备（例如，由Mass Corporation的Hopkinton的EMC Corporation的RecoverPoint）异步分割IO，存储阵列可以接收来自主机的多个IO，并且可以存储与IO相关联的记录（例如，在有序表中）。稍后，存储阵列可以根据与IO相关联的记录来提供IO。例如，存储阵列可以从一个或多个主机接收多个小型计算机系统接口（SCSI）命令描述符块（CDB），并且接收与CDB相关联的数据。然后，存储阵列可以将数据写入存储器中的相应位置，并根据CDB接收的顺序在有序表格中创建条目。

6. 发明授权

US08886883B1 System and method for improving cache performance 有权
标题翻译：提高缓存性能的系统和方法
公开(公告)号：US08886883B1
公开(公告)日：2014-11-11
申请号：US13436906
申请日：2012-03-31
申请人： Philip Derbeko , Marik Marshak , Arieh Don , Alexandr Veprinsky
发明人： Philip Derbeko , Marik Marshak , Arieh Don , Alexandr Veprinsky
IPC分类号： G06F12/02 , G06F12/08
CPC分类号： G06F12/0866 , G06F2212/401
摘要： A method, computer program product, and computing system for identifying compressed content within a first cache system to a data array associated with the first cache system. Related content is located on the data array that is associated with the compressed content on the first cache system and it is determined whether the related content on the data array is compressible.
摘要翻译：一种用于将第一高速缓存系统内的压缩内容识别到与第一高速缓存系统相关联的数据阵列的方法，计算机程序产品和计算系统。相关内容位于与第一高速缓存系统上的压缩内容相关联的数据阵列上，并且确定数据阵列上的相关内容是否是可压缩的。

7. 发明授权

US08838851B2 Techniques for path selection 有权
标题翻译：路径选择技术
公开(公告)号：US08838851B2
公开(公告)日：2014-09-16
申请号：US13600523
申请日：2012-08-31
申请人： Patrick Brian Riordan , Harold M. Sandstrom , Helen S. Raizen , Arieh Don
发明人： Patrick Brian Riordan , Harold M. Sandstrom , Helen S. Raizen , Arieh Don
IPC分类号： G06F13/12 , G06F15/173 , G06F3/06
CPC分类号： G06F3/061 , G06F3/0635 , G06F3/067 , G06F2206/1012
摘要： Described are techniques for performing path selection. A data operation is received for a metadevice comprising a plurality of metadevice members. A first of the plurality of metadevice members is determined. The first member is the member to which the data operation is directed. In accordance with a load balancing technique for the first metadevice member, path selection is performed to select a first of a plurality of paths. The metadevice is accessible over each of the plurality of paths. The data operation is sent over the first path.
摘要翻译：描述了用于执行路径选择的技术。接收包括多个元设备成员的元设备的数据操作。确定多个元设备成员中的第一个。第一个成员是数据操作所针对的成员。根据用于第一元器件成员的负载平衡技术，执行路径选择以选择多个路径中的第一个路径。元设备可以在多个路径中的每一个上访问。数据操作通过第一条路径发送。

8. 发明授权

US08667494B1 Controlling resource allocation using thresholds and scheduling 有权
标题翻译：使用阈值和调度控制资源分配
公开(公告)号：US08667494B1
公开(公告)日：2014-03-04
申请号：US11510028
申请日：2006-08-25
申请人： Patrick Brian Riordan , David Joshua Brown , Kenneth A. Halligan , Arieh Don
发明人： Patrick Brian Riordan , David Joshua Brown , Kenneth A. Halligan , Arieh Don
IPC分类号： G06F9/46
CPC分类号： G06F9/52 , G06F9/5011 , G06F2209/504 , Y02D10/22
摘要： Described are techniques for allocating resources. Two consumer processes using two resources are provided. A first threshold of a first of the resources for a first of said two consumer processes is provided. A second threshold of a second of said resources for said first consumer process is provided. Consumption information is received regarding actual consumption of the two resources by the first consumer process. Execution of the first consumer process is scheduled in accordance with the first and the second thresholds and the consumption information.
摘要翻译：描述了分配资源的技术。提供了两个使用两个资源的消费者进程。提供了用于所述两个消费者过程中的第一个的第一资源的第一阈值。提供了用于所述第一消费者处理的所述资源的第二阈值的第二阈值。收到关于第一消费者过程对两个资源的实际消费的消费信息。根据第一和第二阈值和消费信息调度第一消费者过程的执行。

9. 发明授权

US08584128B1 Techniques for adjusting priorities associated with servicing requests 有权
标题翻译：调整与服务请求相关联的优先级的技术
公开(公告)号：US08584128B1
公开(公告)日：2013-11-12
申请号：US11900062
申请日：2007-09-10
申请人： Arieh Don , James L. Davidson , Alexander Veprinsky , Yechiel Yochai , Patrick Brian Riordan
发明人： Arieh Don , James L. Davidson , Alexander Veprinsky , Yechiel Yochai , Patrick Brian Riordan
IPC分类号： G06F9/46
CPC分类号： G06F9/5011 , G06F11/3442 , G06F11/3485
摘要： Described are techniques for servicing data requests in a data storage system. One or more data requests from an application executing on the host are received. The data storage system allocates a first amount of resources for use in servicing data requests from the application. Behavior of the host is monitored for occurrences of I/O failure. In accordance with criteria and the occurrences of I/O failure, it is determined whether at least one of the host or the application is in a state of pending failure. If it is determined that at least one of the host or the application is in a state of pending failure, a second amount of resources larger than the first amount are allocated for a time period when servicing data requests from the application. After the time period, data requests from the application are serviced in accordance with the first amount of resources.
摘要翻译：描述了用于维护数据存储系统中的数据请求的技术。接收来自在主机上执行的应用程序的一个或多个数据请求。数据存储系统分配用于服务来自应用的数据请求的第一数量的资源。主机监视I / O故障的发生。根据标准和I / O故障的发生，确定主机或应用程序中的至少一个是否处于等待故障的状态。如果确定主机或应用程序中的至少一个处于等待故障的状态，则在服务来自应用的数据请求的时间段内分配大于第一数量的第二数量的资源。在该时间段之后，根据第一资源量来服务来自应用的数据请求。

10. 发明授权

US08392753B1 Automatic failover during online data migration 有权
标题翻译：在线数据迁移期间自动故障切换
公开(公告)号：US08392753B1
公开(公告)日：2013-03-05
申请号：US12750391
申请日：2010-03-30
申请人： Arieh Don , Ian Wigmore , Michael Specht , Steven Goldberg , Vaishali Kochavara
发明人： Arieh Don , Ian Wigmore , Michael Specht , Steven Goldberg , Vaishali Kochavara
IPC分类号： G06F11/07
CPC分类号： G06F11/1662 , G06F11/2094
摘要： A technique automatically handles a failure during online data migration from a source array to a target array. While a host initially accesses data from the source array using multipath I/O software, the technique involves (i) transitioning the source array to a passive mode, and the target array to an active mode, and (ii) beginning a data transfer operation which transfers data from the source array to the target array. The technique further involves modifying the data on both the target array and the source array in response to modification commands sent to the target array from the host while the data transfer operation is ongoing. The technique further involves automatically failing back to providing access to the data from the source array in response to an event in which the target array loses communication with the source array for a predefined amount of time.
摘要翻译：在从源阵列到目标阵列的在线数据迁移过程中，技术自动处理故障。主机最初使用多路径I / O软件从源阵列访问数据，该技术涉及（i）将源阵列转换为被动模式，将目标阵列转换为活动模式，以及（ii）开始数据传输操作它将数据从源数组传输到目标数组。该技术还涉及在数据传送操作正在进行时响应于从主机发送到目标阵列的修改命令来修改目标阵列和源阵列上的数据。该技术进一步涉及自动失败以响应于目标阵列在预定义的时间量内与源阵列失去通信的事件来提供对来自源阵列的数据的访问。

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