专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09495370B1 Data recovery point review in a continuous data protection system 有权
标题翻译：连续数据保护系统中的数据恢复点审查
公开(公告)号：US09495370B1
公开(公告)日：2016-11-15
申请号：US12173203
申请日：2008-07-15
申请人： Paresh Chatterjee , Anandh Mahalingam , Raja Jayaraman , Jomy Maliakal
发明人： Paresh Chatterjee , Anandh Mahalingam , Raja Jayaraman , Jomy Maliakal
IPC分类号： G06F7/00 , G06F17/30 , G06F11/14
CPC分类号： G06F17/30088 , G06F11/1451 , G06F21/645
摘要： Technologies for providing recovery point review within a continuous data protection system can support a data storage operator in a data recovery procedure. A snapshot image can be chosen that was made prior to a data loss event. A new writable snapshot can be created from this logged snapshot. The new writeable snapshot can become the target for recovering the data volume. Review can be performed in a forward direction by reading a journal of I/O operations that have occurred since the prior snapshot was made. Review can be performed in a backward direction by deriving a dirty data list of changes made to the data volume and then removing the changes as requested. The operator can continue forward and backward review operations to refine the selected recovery point. Upon establishing the desired recovery point, the new writable snapshot can be committed, or rolled back, onto the data storage volume.
摘要翻译：在连续数据保护系统内提供恢复点审核的技术可以在数据恢复过程中支持数据存储操作员。可以选择在数据丢失事件之前进行的快照映像。可以从此记录的快照创建新的可写快照。新的可写快照可以成为恢复数据卷的目标。通过读取自从先前的快照开始以来发生的I / O操作的日志，可以在正向执行查看。可以通过导出对数据卷所做的更改的脏数据列表，然后根据请求删除更改来执行查看。运营商可以继续前进和后退审查操作，以细化所选的恢复点。建立所需的恢复点后，可以将新的可写快照提交或回滚到数据存储卷上。

2. 发明授权

US08898385B2 Methods and structure for load balancing of background tasks between storage controllers in a clustered storage environment 有权
标题翻译：在集群存储环境中的存储控制器之间的后台任务的负载平衡的方法和结构
公开(公告)号：US08898385B2
公开(公告)日：2014-11-25
申请号：US13432223
申请日：2012-03-28
申请人： Raja Jayaraman , James A. Rizzo , Rakesh Chandra , Vinu Velayudhan , Phillip V. Nguyen
发明人： Raja Jayaraman , James A. Rizzo , Rakesh Chandra , Vinu Velayudhan , Phillip V. Nguyen
IPC分类号： G06F12/00 , G06F3/06 , G06F13/28 , G06F13/12 , G06F13/42
CPC分类号： G06F3/0631 , G06F3/0613 , G06F3/0635 , G06F3/065 , G06F3/067 , G06F3/0683 , G06F13/12 , G06F13/28 , G06F13/423 , G06F2206/1012 , Y02D10/14
摘要： Methods and structure for load balancing of background tasks between storage controllers are provided. An exemplary active storage controller comprises a front-end interface that receives host Input/Output (I/O) requests directed to a logical volume, a back-end interface that couples with one or more of storage devices provisioning the logical volume, and a control unit. The control unit processes the host I/O requests directed to the logical volume, identifies a background processing task distinct from the host I/O requests and related to the logical volume, and assigns the background processing task to a passive storage controller for processing.
摘要翻译：提供了存储控制器之间后台任务负载平衡的方法和结构。示例性的主动存储控制器包括前端接口，其接收针对逻辑卷的主机输入/输出（I / O）请求，与提供逻辑卷的一个或多个存储设备耦合的后端接口，以及控制单元控制单元处理指向逻辑卷的主机I / O请求，识别与主机I / O请求不同且与逻辑卷相关的后台处理任务，并将后台处理任务分配给被动存储控制器进行处理。

3. 发明申请

US20130067162A1 METHODS AND STRUCTURE FOR LOAD BALANCING OF BACKGROUND TASKS BETWEEN STORAGE CONTROLLERS IN A CLUSTERED STORAGE ENVIRONMENT 有权
标题翻译：集群存储环境中存储控制器之间的背景任务的负载平衡的方法和结构
公开(公告)号：US20130067162A1
公开(公告)日：2013-03-14
申请号：US13432223
申请日：2012-03-28
申请人： Raja Jayaraman , James A. Rizzo , Rakesh Chandra , Vinu Velayudhan , Phillip V. Nguyen
发明人： Raja Jayaraman , James A. Rizzo , Rakesh Chandra , Vinu Velayudhan , Phillip V. Nguyen
IPC分类号： G06F12/08 , G06F12/00
CPC分类号： G06F3/0631 , G06F3/0613 , G06F3/0635 , G06F3/065 , G06F3/067 , G06F3/0683 , G06F13/12 , G06F13/28 , G06F13/423 , G06F2206/1012 , Y02D10/14
摘要： Methods and structure for load balancing of background tasks between storage controllers are provided. An exemplary active storage controller comprises a front-end interface that receives host Input/Output (I/O) requests directed to a logical volume, a back-end interface that couples with one or more of storage devices provisioning the logical volume, and a control unit. The control unit processes the host I/O requests directed to the logical volume, identifies a background processing task distinct from the host I/O requests and related to the logical volume, and assigns the background processing task to a passive storage controller for processing.
摘要翻译：提供了存储控制器之间后台任务负载平衡的方法和结构。示例性的主动存储控制器包括前端接口，其接收针对逻辑卷的主机输入/输出（I / O）请求，与提供逻辑卷的一个或多个存储设备耦合的后端接口，以及控制单元控制单元处理指向逻辑卷的主机I / O请求，识别与主机I / O请求不同且与逻辑卷相关的后台处理任务，并将后台处理任务分配给被动存储控制器进行处理。

4. 发明授权

US08332354B1 Asynchronous replication by tracking recovery point objective 有权
标题翻译：通过跟踪恢复点目标进行异步复制
公开(公告)号：US08332354B1
公开(公告)日：2012-12-11
申请号：US12638783
申请日：2009-12-15
申请人： Paresh Chatterjee , Raja Jayaraman , Loganathan Ranganathan , Jomy Maliakal
发明人： Paresh Chatterjee , Raja Jayaraman , Loganathan Ranganathan , Jomy Maliakal
IPC分类号： G06F7/00
CPC分类号： G06F17/30578 , G06F11/1461 , G06F2201/84
摘要： Technologies are described herein for skipping snapshots during a snapshot replication process in order to maintain an established recovery point objective. A first snapshot is selected after a previously replicated snapshot. A creation time of the first snapshot is retrieved. A difference between a current time and the creation time of the first snapshot is computed. A determination is made as to whether the difference is less than a recovery point objective. If the difference is less than a recovery point objective, then the first snapshot is replicated in the snapshot replicated process. If the difference is not less than a recovery point objective, then the first snapshot is skipped through the snapshot replication process.
摘要翻译：本文描述了技术，用于在快照复制过程中跳过快照，以便维护已建立的恢复点目标。在先前复制的快照之后选择第一个快照。检索第一个快照的创建时间。计算当前时间和第一个快照的创建时间之间的差异。确定差异是否小于恢复点目标。如果差异小于恢复点目标，则在快照复制过程中复制第一个快照。如果差异不小于恢复点目标，则通过快照复制过程跳过第一个快照。

5. 发明授权

US07908448B1 Maintaining data consistency in mirrored cluster storage systems with write-back cache 有权
标题翻译：在具有回写缓存的镜像集群存储系统中维护数据一致性
公开(公告)号：US07908448B1
公开(公告)日：2011-03-15
申请号：US12013116
申请日：2008-01-11
申请人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman
发明人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman
IPC分类号： G06F13/00 , G06F13/28 , G06F7/00 , G06F17/00
CPC分类号： G06F11/2064 , G06F11/2082
摘要： Techniques for maintaining mirrored storage cluster data consistency on systems with write back cache can employ write-intent logging and periodic log clearing. The techniques can track any outstanding I/Os, data in caches, and data that has gone out of sync between mirrored nodes due to link failures. The techniques can ensure that a power failure on any of the storage nodes does not result in inconsistent data among the storage nodes. The techniques can use gate bitmaps to log outstanding I/Os. The gate bitmaps may be periodically cleared. The clearing period may be selected as to allow enough time for all caches to be flushed and for all synchronizing I/Os to complete. Efficient queuing of I/O requests in conjunction with the efficient operation of multiple gate bitmaps can reduce performance impacts of the gating or logging operations.
摘要翻译：在具有回写高速缓存的系统上维护镜像存储集群数据一致性的技术可以采用写意图日志记录和周期性日志清除。这些技术可以跟踪任何未完成的I / O，缓存中的数据以及由于链路故障而在镜像节点之间失去同步的数据。这些技术可以确保任何存储节点上的电源故障不会导致存储节点之间的数据不一致。这些技术可以使用门位图记录未完成的I / O。门位图可能会被定期清除。可以选择清除时间段以允许足够的时间刷新所有高速缓存并使所有同步I / O完成。结合多个门位图的高效操作，I / O请求的高效排队可以降低门控或日志记录操作的性能影响。

6. 发明授权

US08595455B2 Maintaining data consistency in mirrored cluster storage systems using bitmap write-intent logging 有权
标题翻译：使用位图写入意图记录维护镜像集群存储系统中的数据一致性
公开(公告)号：US08595455B2
公开(公告)日：2013-11-26
申请号：US13242259
申请日：2011-09-23
申请人： Paresh Chatterjee , Ajit Narayanan , Narayanan Balakrishnan , Raja Jayaraman
发明人： Paresh Chatterjee , Ajit Narayanan , Narayanan Balakrishnan , Raja Jayaraman
IPC分类号： G06F13/00
CPC分类号： G06F11/2064 , G06F11/2071 , G06F11/2082 , G06F2201/855 , G06F2201/88
摘要： Techniques for maintaining mirrored storage cluster data consistency can employ write-intent logging. The techniques can be scaled to any number of mirror nodes. The techniques can keep track of any outstanding I/Os, data in caches, and data that has gone out of sync between mirrored nodes due to link failures. The techniques can ensure that a power failure on any of the storage nodes does not result in inconsistent data among the storage nodes. The techniques may keep track of outstanding I/Os using a minimal memory foot-print and having a negligible impact on the I/O performance. Properly choosing the granularity of the system for tracking outstanding I/Os can result in a minimal amount of data requiring transfer to synchronize the mirror nodes. The capability to vary the granularity based on physical and logical parameters of the storage volumes may provide performance benefits.
摘要翻译：维护镜像存储集群数据一致性的技术可以采用写意图日志记录。这些技术可以缩放到任何数量的镜像节点。这些技术可以跟踪任何未完成的I / O，缓存中的数据以及由于链路故障而在镜像节点之间失去同步的数据。这些技术可以确保任何存储节点上的电源故障不会导致存储节点之间的数据不一致。这些技术可以使用最小的内存足迹来跟踪未完成的I / O，对I / O性能的影响可以忽略不计。正确选择用于跟踪未完成I / O的系统的粒度可能导致需要传输的最小数据量来同步镜像节点。根据存储卷的物理和逻辑参数改变粒度的能力可以提供性能优势。

7. 发明授权

US08554734B1 Continuous data protection journaling in data storage systems 有权
标题翻译：数据存储系统中连续数据保护日志记录
公开(公告)号：US08554734B1
公开(公告)日：2013-10-08
申请号：US12173188
申请日：2008-07-15
申请人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman , Narayanaswami Ganapathy
发明人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman , Narayanaswami Ganapathy
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30088 , G06F11/1451 , G06F21/645
摘要： Technologies for providing block-level continuous data protection can operate without additional external devices. I/O operations to a storage volume may be logged to a sequential journal volume. The logging can occur in parallel to the I/O operation thereby having little, or no, impact on the performance of the storage system. Previous data need not be backed up; instead only new I/O operations may be recorded in the journal or log. Snapshot events may also be recorded to the logging journal. When a volume is to be recovered, a snapshot can be mounted and I/O operations after the snapshot creation, but prior to the recovery point, can be played back onto the snapshot. Operators may be provided with a flexible mechanism for reviewing and recovering data after a data loss. Using snapshots and I/O journals, a volume can be rolled back to a desired point nearly instantaneously.
摘要翻译：提供块级连续数据保护的技术可以在没有其他外部设备的情况下运行。存储卷的I / O操作可能会记录到顺序日志卷。记录可以与I / O操作并行发生，因此对存储系统的性能几乎没有影响或不影响。以前的数据不需要备份; 相反，只能在日志或日志中记录新的I / O操作。快照事件也可能记录到日志记录。要恢复卷时，可以挂载快照，并且可以在快照创建之后但恢复点之前的I / O操作可以播放到快照上。操作员可能会被提供一个灵活的机制，用于在数据丢失后查看和恢复数据。使用快照和I / O日志，卷可以几乎瞬间回滚到所需的点。

8. 发明授权

US08498967B1 Two-node high availability cluster storage solution using an intelligent initiator to avoid split brain syndrome 有权
标题翻译：双节点高可用性集群存储解决方案使用智能启动器来避免分裂脑综合征
公开(公告)号：US08498967B1
公开(公告)日：2013-07-30
申请号：US12013124
申请日：2008-01-11
申请人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman
发明人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman
IPC分类号： G06F17/30
CPC分类号： G06F17/30174 , G06F11/201 , G06F11/2069 , G06F11/2082 , G06F17/30575
摘要： Techniques for maintaining mirrored storage cluster data consistency on systems with two-node, highly available storage solutions can employ an initiator-side agent operable to prevent split-brain scenarios. Split brain syndrome can be avoided, information identifying changes of synchronization states can be maintained, and both graceful and ungraceful shutdowns (or failures) of either one of the nodes or of the intelligent initiator itself can be mitigated. Technology presented herein supports load balancing and hot failover/failback in systems that may feature redundant network connectivity. Moreover, a method is supported for communicating storage cluster status between the storage nodes and the initiator.
摘要翻译：在具有双节点，高可用性存储解决方案的系统上维护镜像存储集群数据一致性的技术可以采用可操作来防止裂脑情况的启动器端代理。可以避免分裂脑综合征，可以保持识别同步状态变化的信息，并且可以减轻任一个节点或智能发起者本身的优雅和不正常的关闭（或故障）。本文提供的技术支持可能具有冗余网络连接性的系统中的负载平衡和热故障转移/故障恢复。此外，支持用于在存储节点和发起者之间传送存储集群状态的方法。

9. 发明授权

US08244999B1 Maintaining data consistency in mirrored cluster storage systems with write-back cache 有权
标题翻译：在具有回写缓存的镜像集群存储系统中维护数据一致性
公开(公告)号：US08244999B1
公开(公告)日：2012-08-14
申请号：US13046857
申请日：2011-03-14
申请人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman
发明人： Paresh Chatterjee , Narayanan Balakrishnan , Raja Jayaraman
IPC分类号： G06F13/00 , G06F13/28 , G06F7/00 , G06F17/00
CPC分类号： G06F11/2064 , G06F11/2082
摘要： Techniques for maintaining mirrored storage cluster data consistency on systems with write back cache can employ write-intent logging and periodic log clearing. The techniques can track any outstanding I/Os, data in caches, and data that has gone out of sync between mirrored nodes due to link failures. The techniques can ensure that a power failure on any of the storage nodes does not result in inconsistent data among the storage nodes. The techniques can use gate bitmaps to log outstanding I/Os. The gate bitmaps may be periodically cleared. The clearing period may be selected as to allow enough time for all caches to be flushed and for all synchronizing I/Os to complete. Efficient queuing of I/O requests in conjunction with the efficient operation of multiple gate bitmaps can reduce performance impacts of the gating or logging operations.
摘要翻译：在具有回写高速缓存的系统上维护镜像存储集群数据一致性的技术可以采用写意图日志记录和周期性日志清除。这些技术可以跟踪任何未完成的I / O，缓存中的数据以及由于链路故障而在镜像节点之间失去同步的数据。这些技术可以确保任何存储节点上的电源故障不会导致存储节点之间的数据不一致。这些技术可以使用门位图记录未完成的I / O。门位图可能会被定期清除。可以选择清除时间段以允许足够的时间刷新所有高速缓存并使所有同步I / O完成。结合多个门位图的高效操作，I / O请求的高效排队可以降低门控或日志记录操作的性能影响。

10. 发明授权

US08082407B1 Writable snapshots for boot consolidation 有权
标题翻译：用于启动整合的可写快照
公开(公告)号：US08082407B1
公开(公告)日：2011-12-20
申请号：US12104116
申请日：2008-04-16
申请人： Paresh Chatterjee , Narayanaswami Ganapathy , Raja Jayaraman , Ajit Narayanan
发明人： Paresh Chatterjee , Narayanaswami Ganapathy , Raja Jayaraman , Ajit Narayanan
IPC分类号： G06F12/00
CPC分类号： G06F9/4416
摘要： Boot consolidation based on writeable volume snapshots can leverage flexible mappings of snapshot dependencies. Such flexible mappings can be established by relating sequence numbers associated with various volume snapshots and can provide for an arbitrarily complex mapping to support a potentially unlimited number of writable snapshots in potentially any dependency configuration. Additionally, the pinning of volumes can provide support for chains of snapshots to depend from snapshots within other chains of snapshots. Merge agents can operate with writable snapshots and boot consolidation to provide system-wide updates where security patches, upgrades, and application software may be applied to a group of servers or a group of users in an efficient fashion.
摘要翻译：基于可写卷快照的引导整合可以利用快照依赖关系的灵活映射。可以通过将与各种卷快照相关联的序列号相关联来建立这种灵活的映射，并且可以提供任意复杂的映射以支持潜在的任何依赖性配置中潜在无限数量的可写快照。此外，卷的固定可以提供对快照链的支持，以依赖于其他快照链中的快照。合并代理可以通过可写快照和引导整合来运行，以提供系统范围的更新，其中安全补丁，升级和应用软件可以以有效的方式应用于一组服务器或一组用户。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式