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公开(公告)号：US09547560B1
公开(公告)日：2017-01-17
申请号：US14752711
申请日：2015-06-26
发明人： Kerry Quintin Lee
IPC分类号： G06F11/14
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0665 , G06F3/067 , G06F11/00 , G06F11/1435 , G06F11/1451 , G06F11/1464 , G06F2201/84
摘要： A system and method for generating and storing at least one snapshot update. The system and method comprising determining a first set of blocks including blocks that have changed since a time of a previous snapshot, determining a second set of blocks based at least in part on a predetermined amount, generating at least one snapshot update of a volume based at least in part on a combination of the first set of blocks and the second set of blocks, and storing the at least one snapshot update.
摘要翻译： 一种用于生成和存储至少一个快照更新的系统和方法。 该系统和方法包括确定包括从先前快照的时间起已经改变的块的第一组块，至少部分地基于预定量来确定第二组块，生成基于卷的至少一个快照更新 至少部分地基于所述第一组块和所述第二组块的组合，并且存储所述至少一个快照更新。
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公开(公告)号：US10331375B1
公开(公告)日：2019-06-25
申请号：US13924125
申请日：2013-06-21
IPC分类号： G06F3/06 , G06F12/0891 , G06F12/02
摘要： A block-level data storage system receives a request to delete a data storage volume. As a result, the data storage volume is deleted and the areas comprising the volume are released and reaped. The areas may contain non-zero data within a plurality of data storage chunks that comprise the areas. An area cleaner is configured to zero out the areas for allocation to a newly created data storage volume.
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3.发明授权公开(公告)号：US09760576B1
公开(公告)日：2017-09-12
申请号：US14216216
申请日：2014-03-17
IPC分类号： G06F17/30
CPC分类号： G06F17/30129 , G06F17/30979
摘要： Embodiments of system and method for performing object-modifying commands in an unstructured storage service are described. Embodiments may include utilizing one or more nodes to implement an unstructured storage service including a service interface configured to service data storage requests and data retrieval requests from remote clients. The unstructured storage service is configured to isolate access to each of multiple storage domains of the service to different clients. Embodiments may also include receiving from a given remote client, a request to store a data object to a given storage domain of the service. The request further specifying a command to modify source data for the object prior to storing the object. Embodiments may also include using the unstructured storage service to perform the command without exporting the source data from the unstructured storage service to the given remote client prior to completion of the command.
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公开(公告)号：US09753802B1
公开(公告)日：2017-09-05
申请号：US14673845
申请日：2015-03-30
CPC分类号： G06F11/1004 , G06F11/1443 , G06F11/3006
摘要： A system and method for using a dead letter queue to regulate host computing systems performing transformation or migration operations. The system and method including reading a message from a queue, the message including one or more references to a set of data objects, with the set of data objects including one or more data objects selected for a transformation operation according to a transformation scheme. The system and method further including performing a mitigation action upon determination that the message is one of a number of unsuccessfully processed messages in the queue that are associated with the computer system, when the number of unsuccessfully processed messages exceed a threshold.
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5.发明授权Optimized write performance at block-based storage during volume snapshot operations 有权在卷快照操作期间优化基于块的存储的写入性能公开(公告)号：US09405483B1
公开(公告)日：2016-08-02
申请号：US14205046
申请日：2014-03-11
发明人： Danny Wei , Nandakumar Gopalakrishnan , Jiahua He , John Luther Guthrie, II , James Michael Thompson , Jianhua Fan , Fnu Amit Anand Amleshwaram , Kerry Quintin Lee
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0665 , G06F3/067 , G06F11/1446 , G06F2201/84
摘要： Write optimization for block-based storage performing snapshot operations may be implemented. Write requests for a particular data volume may be received for which a snapshot operation is in progress. A determination may be made as to whether a data chunk of the data volume modified as part of the write request has not yet been stored to a remote snapshot data store as part of the snapshot operation. For a data chunk that is to be modified and that has not yet been stored, the data chunk may be stored in a local in-memory volume snapshot buffer. Once the data chunk is stored in the in-memory volume snapshot buffer, the write request may be performed and acknowledged as complete. The data chunk may be sent to the remote snapshot data store asynchronously with regard to the acknowledgment of the write request.
摘要翻译： 可以实现对执行快照操作的基于块的存储的写入优化。 可能会收到针对特定数据卷的写请求正在进行快照操作。 作为快照操作的一部分，可以确定作为写请求的一部分修改的数据卷的数据块是否还没有被存储到远程快照数据存储。 对于要修改并且尚未存储的数据块，数据块可以存储在本地内存卷快照缓冲区中。 一旦数据块被存储在内存卷快照缓冲器中，写请求可以被执行并被确认为完成。 关于写请求的确认，数据块可以异步地发送到远程快照数据存储。
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6.发明授权公开(公告)号：US11494437B1
公开(公告)日：2022-11-08
申请号：US15701338
申请日：2017-09-11
IPC分类号： G06F16/93 , G06F16/835 , G06F16/17 , G06F16/438 , G06F16/34 , G06F16/30 , G06F16/33 , G06F16/2455
摘要： Embodiments of system and method for performing object-modifying commands in an unstructured storage service are described. Embodiments may include utilizing one or more nodes to implement an unstructured storage service including a service interface configured to service data storage requests and data retrieval requests from remote clients. The unstructured storage service is configured to isolate access to each of multiple storage domains of the service to different clients. Embodiments may also include receiving from a given remote client, a request to store a data object to a given storage domain of the service. The request further specifying a command to modify source data for the object prior to storing the object. Embodiments may also include using the unstructured storage service to perform the command without exporting the source data from the unstructured storage service to the given remote client prior to completion of the command.
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公开(公告)号：US11030063B1
公开(公告)日：2021-06-08
申请号：US14673839
申请日：2015-03-30
摘要： A system and method for maintaining data integrity during data transformation operations. The system and method include obtaining a message from a set of queues, obtaining, from a first data store, a data object indicated by the message, and generating, at a first host, a set of error detection codes corresponding to a transformation of the data object according to a transformation scheme. The system and method further include, transforming, at a second host different from the first host, the data object according to the transformation scheme into the transformation of the data object, verifying the transformation against the set of error detection codes, and storing the transformation in a second data store.
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公开(公告)号：US09720620B1
公开(公告)日：2017-08-01
申请号：US14204992
申请日：2014-03-11
发明人： Danny Wei , Kerry Quintin Lee , John Luther Guthrie, II , Jianhua Fan , James Michael Thompson , Nandakumar Gopalakrishnan
IPC分类号： G06F3/06
CPC分类号： G06F3/065 , G06F3/0614 , G06F3/0617 , G06F3/067 , G06F3/0683
摘要： A block-based storage system may implement efficient replication for restoring a data volume from a reduced durability state. A storage node that is not replicating write requests for a data volume may determine that replication for the data volume is to be enabled. A peer storage node may be identified that maintains a stale replica of the data volume. One or more replication operations may be performed to update stale data chunks in the stale replica of the data volume with current data chunks without updating data chunks in the stale replica of the data volume that are current. Stale replicas that are no longer needed may be deleted according timeouts or the amount of stale data in the replica.
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公开(公告)号：US09600203B2
公开(公告)日：2017-03-21
申请号：US14204943
申请日：2014-03-11
发明人： Danny Wei , Kerry Quintin Lee , James Michael Thompson , John Luther Guthrie, II , Jianhua Fan , Nandakumar Gopalakrishnan
IPC分类号： G06F3/06
CPC分类号： G06F17/30575 , G06F3/0604 , G06F3/0611 , G06F3/0623 , G06F3/064 , G06F3/065 , G06F3/0665 , G06F3/067 , G06F3/0683 , G06F11/2069 , H04L67/1095 , H04L67/1097
摘要： A block-based storage system may implement reducing durability state for a data volume. A determination may be made that storage node replicating write requests for a data volume is unavailable. In response, subsequent write requests may be processed according to a reduced durability state for the data volume such that replication for the data volume may be disabled for the storage node. Write requests may then be completed at a fewer number of storage nodes prior to acknowledging the write request as complete. Durability state for the data volume may be increase in various embodiments. A storage node may be identified and replication operations may be performed to synchronize the current data volume at the storage node with a replica of the data volume maintained at the identified storage node.
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公开(公告)号：US09436407B1
公开(公告)日：2016-09-06
申请号：US13860343
申请日：2013-04-10
发明人： Jianhua Fan , Kerry Quintin Lee , Danny Wei , Tate Andrew Certain
IPC分类号： G06F3/06
CPC分类号： G06F3/065 , G06F3/0614 , G06F3/067
摘要： Methods and systems for cursor remirroring are disclosed. A mirroring process is initiated for a plurality of chunks stored by a master node. The mirroring process comprises visiting a sequence of one or more of the chunks and, for at least some of the chunks, copying chunk data or metadata to a slave node. During the initiated mirroring process, a request is received for a write operation on one of the chunks stored by the master node. If the chunk in the request has been visited in the mirroring process, the write operation is performed on the master node and on the slave node. If the chunk in the request has not been visited, the write operation is performed on the master node and postponed on the slave node until the chunk in the request has been visited in the mirroring process.
摘要翻译： 公开了用于光标重新镜像的方法和系统。 为由主节点存储的多个块启动镜像处理。 镜像过程包括访问一个或多个块的序列，并且对于至少一些块，将块数据或元数据复制到从节点。 在启动的镜像处理期间，接收到由主节点存储的块之一上的写入操作的请求。 如果在镜像过程中访问了请求中的块，则在主节点和从节点上执行写操作。 如果请求中的块没有被访问，则在主节点上执行写入操作，并在从节点上延迟，直到在镜像过程中访问了请求中的块。
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