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1. 发明申请

US20190034293A1 RESTORATION OF DATA WHEN POINT IN TIME COPY OPERATIONS ARE PERFORMED DURING ASYNCHRONOUS COPY 审中-公开
公开(公告)号：US20190034293A1
公开(公告)日：2019-01-31
申请号：US15662144
申请日：2017-07-27
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Theresa M. Brown , Nicolas M. Clayton , Nedlaya Y. Francisco , Theodore T. Harris, JR. , Kevin Lin , Gregory E. McBride , Carol S. Mellgren , Raul E. Saba , Matthew Sanchez
IPC分类号： G06F11/14
CPC分类号： G06F11/1469 , G06F11/1446 , G06F11/1451 , G06F11/1464 , G06F11/2064 , G06F11/2074 , G06F2201/805 , G06F2201/82 , G06F2201/84
摘要： Consistency groups are asynchronously copied to a remote computational device, from a local computational device, wherein point in time copy operations are performed at the local computational device while the consistency groups are being asynchronously copied to the remote computational device. Indicators are stored at the remote computational device to identify those point in time copy operations that are to be restored as part of a recovery operation performed at the remote computational device in response to a failure of the local computational device.

2. 发明申请

US20180121302A1 DATA MIRROR VOLUME VERIFICATION 有权
公开(公告)号：US20180121302A1
公开(公告)日：2018-05-03
申请号：US15337783
申请日：2016-10-28
申请人： International Business Machines Corporation
发明人： Dash D. Miller , Miguel A. Perez , David C. Reed
IPC分类号： G06F11/20 , G06F3/06
CPC分类号： G06F11/2064 , G06F3/0619 , G06F3/0644 , G06F3/065 , G06F3/0653 , G06F3/067 , G06F3/0673 , G06F11/2069
摘要： For volume verification, an apparatus is disclosed. The apparatus includes a data mirror that generates volume pairs of first and second volumes by mirroring track data from first volumes stored by a first device to second volumes as mirrored track data stored by a second device. The apparatus includes an activity monitor that monitors update activities for volume pairs and identifies volume pairs having substantial residual counts of update activities as indicated by a pre-determined residual count threshold. The apparatus includes a data verifier that selects one or more identified volume pairs for evaluation, compares the track data in the first volume to the mirrored track data in the second volume, and if a match discrepancy is determined, then re-copies the track data from the first volume to the second volume so as to correct and repair the mirrored track data in the second volume.

3. 发明申请

US20180081773A1 COPY-ON-READ PROCESS IN DISASTER RECOVERY 审中-公开
公开(公告)号：US20180081773A1
公开(公告)日：2018-03-22
申请号：US15801121
申请日：2017-11-01
申请人： International Business Machines Corporation
发明人： John P. Wilkinson
IPC分类号： G06F11/20
CPC分类号： G06F11/2082 , G06F11/2064 , G06F11/2074
摘要： Systems and program products are configured to perform a method for copy-on-read in disaster recovery (DR). The method includes: making a DR storage volume available at a DR system for read access before all data from a corresponding primary storage volume has been copied to the DR storage volume; maintaining a record of regions of the DR storage volume; and responsive to receiving a read request for data at the DR system: looking up the record of regions of the DR storage volume to determine available data for the read request; reading any available data from the DR storage volume; for any data unavailable at the DR storage volume, obtaining the unavailable data from the corresponding primary storage volume; updating the DR storage volume with obtained data; supplying obtained data to the read request; and updating the record of regions of the DR storage volume for regions of obtained data.

4. 发明申请

US20170103006A1 SYSTEMS AND METHODS FOR APPLICATION-CONSISTENT DISASTER RECOVERY USING A VIRTUAL STORAGE CONTROLLER AND REMOTE STORAGE 有权
公开(公告)号：US20170103006A1
公开(公告)日：2017-04-13
申请号：US14880502
申请日：2015-10-12
申请人： Dell Products L.P.
发明人： Gopakumar Ambat , Yask Sharma
IPC分类号： G06F11/20 , G06F3/06 , G06F11/14
CPC分类号： G06F11/1435 , G06F11/2064 , G06F11/2074 , G06F2201/84
摘要： An information handling system may include a processor and a first storage management console comprising a program of executable instructions embodied in non-transitory computer-readable media accessible to the processor, and configured to, when read and executed by the processor: (i) manage input/output between an application and a primary physical storage controller to perform input/output between the application and a storage resource communicatively coupled to primary physical storage container; (ii) asynchronously mirror application-consistent snapshots of data associated with the application from the primary physical storage controller to a storage virtual controller configured to emulate a physical storage controller such that the storage virtual controller stores the snapshots to remote storage geographically remote from the information handling system; (iii) store metadata associated with the application and data stored to the storage resource and the remote storage; and (iv) copy the metadata to a second storage management console executing on a second information handling system geographically remote from the information handling system.

5. 发明授权

US09552173B2 Robust data replication 有权
标题翻译：稳健的数据复制
公开(公告)号：US09552173B2
公开(公告)日：2017-01-24
申请号：US14494901
申请日：2014-09-24
申请人： GLOBALFOUNDRIES Inc.
发明人： Joanna K. Brown , Gordon J. Cockburn , Carlos F. Fuente , John P. Wilkinson
IPC分类号： G06F12/00 , G06F13/00 , G06F3/06 , G06F11/20
CPC分类号： G06F3/065 , G06F3/0619 , G06F3/0679 , G06F11/2064 , G06F11/2074 , G06F11/2089 , G06F2206/1014
摘要： Disclosed is a system for replicating data. The system may comprise a plurality of nodes preferably organized in groups with one of the nodes acting as a coordinator node. The nodes are configured to receive write requests from an external server and to apply these write requests to a data storage source of the data storage system. The write requests typically belong to a batch of independent write actions identified by a batch sequence number. Each node stores the write request in non-volatile memory with the coordinator node monitoring which batches are secured in their entirety in non-volatile memory. The coordinator node authorizes all other nodes to sequentially replicate the write requests in their non-volatile memory to the data storage source for all writes up to the highest batch sequence number for which all writes have been secured in non-volatile memory.
摘要翻译：公开了一种用于复制数据的系统。该系统可以包括多个节点，优选地组织成组，其中一个节点充当协调节点。这些节点被配置为从外部服务器接收写入请求，并将这些写入请求应用于数据存储系统的数据存储源。写请求通常属于由批次序列号标识的一批独立写入动作。每个节点将写请求存储在非易失性存储器中，协调器节点监视哪些批处理完整地保护在非易失性存储器中。协调器节点授权所有其他节点将其非易失性存储器中的写请求顺序复制到所有写入的数据存储源，直到所有写入已经在非易失性存储器中保护的最高批次序列号。

6. 发明授权

US09519657B2 Clustered filesystem with membership version support 有权
标题翻译：具有会员版本支持的群集文件系统
公开(公告)号：US09519657B2
公开(公告)日：2016-12-13
申请号：US14199619
申请日：2014-03-06
申请人： Silicon Graphics International Corp.
发明人： Kenneth S. Beck
IPC分类号： G06F17/30 , G06F11/20 , H04L29/06 , H04L29/08
CPC分类号： G06F17/30194 , G06F3/0619 , G06F3/065 , G06F3/067 , G06F11/2064 , G06F11/2082 , G06F17/30067 , G06F17/30088 , G06F2201/84 , H04L29/06 , H04L67/10 , H04L67/1097 , H04L67/2819 , H04L67/2833 , Y10S707/966
摘要： A computer system with read/write access to storage devices creates a snapshot of a data volume at a point in time while continuing to accept access requests to the mirrored data volume by copying before making changes to the base data volume. Multiple snapshots may be made of the same data volume at different points in time. Only data that is not stored in a previous snapshot volume or in the base data volume are stored in the most recent snapshot volume.
摘要翻译：具有对存储设备的读/写访问权限的计算机系统在某个时间点创建数据卷的快照，同时在对基本数据卷进行更改之前，继续通过复制接受对镜像数据卷的访问请求。可以在不同的时间点对同一数据量做多个快照。只有不存储在先前快照卷或基本数据卷中的数据才会存储在最新的快照卷中。

7. 发明授权

US09430484B2 Data redundancy in a cluster system 有权
标题翻译：集群系统中的数据冗余
公开(公告)号：US09430484B2
公开(公告)日：2016-08-30
申请号：US14609598
申请日：2015-01-30
申请人： Hitachi, Ltd.
发明人： Oleg Kiselev , Gaurab Paul , Christopher Youngworth
IPC分类号： G06F11/00 , G06F17/30 , G06F11/20 , G06F11/16 , G06F11/14 , G06F11/10 , G06F3/06
CPC分类号： G06F11/1662 , G06F3/0611 , G06F3/0619 , G06F3/0629 , G06F3/0647 , G06F3/065 , G06F3/067 , G06F11/1076 , G06F11/1084 , G06F11/1448 , G06F11/1458 , G06F11/1464 , G06F11/1658 , G06F11/202 , G06F11/2023 , G06F11/2058 , G06F11/2064 , G06F11/2082 , G06F11/2089 , G06F17/30082 , G06F17/30289 , G06F2201/805 , G06F2201/82 , G06F2201/84 , G06F2211/1028 , H03M13/154
摘要： A cluster system includes a plurality of computing nodes connected to a network, each node including one or more storage devices. The cluster system stores data and at least one of data replicas or erasure-coded segments across the plurality of nodes based on a redundancy policy. Further, configuration information, which may be indicative of a data placement of the data and the data replicas or erasure-coded segments on the plurality of nodes, is provided to each of the plurality of nodes. Additionally, each of the nodes may act as a first node which is configured to determine, upon a change of the redundancy policy, updated configuration information based on the change of the redundancy policy and to send a message including information indicating the change of the redundancy policy to the other nodes of the plurality of nodes.
摘要翻译：集群系统包括连接到网络的多个计算节点，每个节点包括一个或多个存储设备。集群系统基于冗余策略来存储跨多个节点的数据和数据副本或擦除编码段中的至少一个。此外，可以向多个节点中的每个节点提供可以指示数据的数据放置的配置信息，以及多个节点上的数据副本或擦除编码的段。此外，每个节点可以充当第一节点，其被配置为基于冗余策略的改变来确定基于冗余策略的改变的更新的配置信息，并且发送包括指示冗余变化的信息的消息策略到多个节点的其他节点。

8. 发明申请

US20160210205A1 FAILOVER AND RECOVERY FOR REPLICATED DATA INSTANCES 审中-公开
标题翻译：恢复和恢复替代数据实时
公开(公告)号：US20160210205A1
公开(公告)日：2016-07-21
申请号：US15083210
申请日：2016-03-28
申请人： Amazon Technologies, Inc.
发明人： GRANT ALEXANDER MACDONALD MCALISTER , SWAMINATHAN SIVASUBRAMANIAN
IPC分类号： G06F11/14 , G06F17/30
CPC分类号： G06F11/1469 , G06F11/1443 , G06F11/1451 , G06F11/1464 , G06F11/2025 , G06F11/2028 , G06F11/2041 , G06F11/2048 , G06F11/2056 , G06F11/2064 , G06F11/2069 , G06F11/2076 , G06F11/2082 , G06F17/30174 , G06F17/30581
摘要： Replicated instances in a database environment provide for automatic failover and recovery. A monitoring component can periodically communicate with a primary and a secondary replica for an instance, with each capable of residing in a separate data zone or geographic location to provide a level of reliability and availability. A database running on the primary instance can have information synchronously replicated to the secondary replica at a block level, such that the primary and secondary replicas are in sync. In the event that the monitoring component is not able to communicate with one of the replicas, the monitoring component can attempt to determine whether those replicas can communicate with each other, as well as whether the replicas have the same data generation version. Depending on the state information, the monitoring component can automatically perform a recovery operation, such as to failover to the secondary replica or perform secondary replica recovery.
摘要翻译：数据库环境中的复制实例提供自动故障转移和恢复。监视组件可以定期与实例的主副本和副副本进行通信，每个实例可以驻留在单独的数据区域或地理位置以提供一定程度的可靠性和可用性。在主实例上运行的数据库可以将信息在块级别同步复制到辅助副本，以便主副本和辅助副本同步。如果监视组件无法与其中一个副本进行通信，则监视组件可以尝试确定这些副本是否可以相互通信，以及副本是否具有相同的数据生成版本。根据状态信息，监视组件可以自动执行恢复操作，例如故障切换到辅助副本或执行辅助副本恢复。

9. 发明授权

US09395922B2 Information system and I/O processing method 有权
标题翻译：信息系统和I / O处理方法
公开(公告)号：US09395922B2
公开(公告)日：2016-07-19
申请号：US14424455
申请日：2014-01-10
申请人： Hitachi, Ltd.
发明人： Naoto Nishikido , Koji Nagata , Takahito Sato
IPC分类号： G06F3/06 , G06F11/30 , G06F11/20 , G06F11/00 , G06F11/14
CPC分类号： G06F3/0617 , G06F3/06 , G06F3/0619 , G06F3/0635 , G06F3/065 , G06F3/067 , G06F11/00 , G06F11/1425 , G06F11/2064 , G06F11/2069 , G06F11/2094 , G06F11/3034
摘要： In an information system including: first and second storage apparatuses executing synchronous copying of data to a counterpart storage device; a first quorum apparatus coupled to the first and the second storage apparatuses; and a second quorum apparatus coupled to the first and the second storage apparatuses, wherein the first and the second storage apparatuses are each configured to perform control to determine whether to execute the I/O request in accordance with an execution feasibility setting, and in health check processing that is repeatedly executed, the first and the second storage apparatuses are each configured to store survival information thereof in the first and the second quorum apparatuses, check whether the survival information of the counterpart storage apparatus is able to be checked from any one of the first and the second quorum apparatuses, and set the execution feasibility setting of the storage apparatus.
摘要翻译：一种信息系统，包括：执行数据到对方存储装置的同步复制的第一和第二存储装置; 耦合到第一和第二存储装置的第一法定装置; 以及耦合到第一和第二存储装置的第二法定装置，其中，第一和第二存储装置各自被配置为执行控制以根据执行可行性设置来确定是否执行I / O请求，并且在健康检查处理被重复执行，第一和第二存储装置各自被配置为在第一和第二法定装置中存储其生存信息，检查对方存储装置的生存信息是否能够从第一和第二法定设备，并设置存储设备的执行可行性设置。

10. 发明申请

US20160188424A1 DATA STORAGE SYSTEM EMPLOYING A HOT SPARE TO STORE AND SERVICE ACCESSES TO DATA HAVING LOWER ASSOCIATED WEAR 有权
标题翻译：数据存储系统使用热备份存储和维修访问下列相关数据的数据
公开(公告)号：US20160188424A1
公开(公告)日：2016-06-30
申请号：US14585886
申请日：2014-12-30
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： ANDREW D. WALLS
IPC分类号： G06F11/16
CPC分类号： G06F11/1662 , G06F11/2017 , G06F11/2056 , G06F11/2064 , G06F11/2087 , G06F11/2089 , G06F11/2094 , G06F11/3034 , G06F11/3485 , G06F2201/88
摘要： A controller monitors access frequencies of address ranges mapped to a data storage array. Based on the monitoring, the controller identifies frequently accessed ones of the address ranges that have lower associated wear, for example, those that are read more often than written. In response to the identifying, the controller initiates copying of a dataset associated with the identified address ranges from the data storage array to a spare storage device while refraining from copying other data from the data storage array onto the spare storage device. The controller directs read input/output operations (IOPs) targeting the identified address ranges to be serviced by access to the spare storage device. In response to a failure of a failed storage device among the plurality of primary storage devices, the controller rebuilds contents of the failed storage device on the spare storage device in place of the dataset associated with the identified address ranges.
摘要翻译：控制器监视映射到数据存储阵列的地址范围的访问频率。基于监视，控制器识别具有较低相关磨损的频繁访问的地址范围，例如比书写频率更高的地址范围。响应于该识别，控制器在禁止将数据存储阵列中的其他数据复制到备用存储设备上的同时，将与所识别的地址范围相关联的数据集从数据存储阵列复制到备用存储设备。控制器通过访问备用存储设备来引导针对所标识的地址范围的读取输入/输出操作（IOP）来进行服务。响应于多个主存储装置中的故障存储装置的故障，控制器重新构建备用存储装置上的故障存储装置的内容，代替与所识别的地址范围相关联的数据集。

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