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公开(公告)号：US10771550B2
公开(公告)日：2020-09-08
申请号：US15392835
申请日：2016-12-28
Applicant: Amazon Technologies, Inc.
Inventor： Norbert P. Kusters , Nachiappan Arumugam , Christopher Nathan Watson , Marc John Brooker , David R. Richardson , Danny Wei , John Luther Guthrie, II
IPC: G06F15/173 , H04L29/08 , H04L29/12 , G06F11/20 , G06F3/06 , G06F11/10 , H03M13/15 , H04L29/06 , G06F11/16 , G06F11/34
Abstract: A data storage system includes a rack, multiple head nodes, multiple data storage sleds, and at least two networking devices. The at least two network devices are configured to implement at least two redundant networks within the data storage system. Also, each of the head nodes is assigned at least two network addresses for communication with the data storage sleds of the data storage system via the at least two networking devices. The data storage sleds each include multiple mass storage devices and a sled controller that is configured to couple with the at least two network switches. In some embodiments, the data storage system further includes redundant power systems within a rack in which the head nodes, the data storage sleds, and the at least two networking devices are mounted.
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公开(公告)号：US10509601B2
公开(公告)日：2019-12-17
申请号：US15392878
申请日：2016-12-28
Applicant: Amazon Technologies, Inc.
Inventor： Norbert P. Kusters , Nachiappan Arumugam , Christopher Nathan Watson , Marc John Brooker , David R. Richardson , Danny Wei , John Luther Guthrie, II
Abstract: A data storage system includes multiple data storage units and a zonal control plane. The zonal control plane assigns volumes to respective ones of the data storage units. The data storage units include multiple head nodes and data storage sleds. At least one of the head nodes implements a local control plane for the data storage unit. Also, the head nodes of each data storage unit are configured to service read and write requests directed to one or more volumes serviced by the data storage unit independent of the zonal control plane.
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公开(公告)号：US10191813B2
公开(公告)日：2019-01-29
申请号：US15694684
申请日：2017-09-01
Applicant: Amazon Technologies, Inc.
Inventor： Jianhua Fan , Benjamin Arthur Hawks , Norbert Paul Kusters , Nachiappan Arumugam , Danny Wei , John Luther Guthrie, II
Abstract: Persistent storage for a master copy is provided using operation numbers. A master copy can include a persistent key-value store such as a B-tree with references to corresponding data. When provisioning a slave copy, the master copy sends a point-in-time copy of the B-tree to the slave copy, which stores a copy of the B-tree, allocates the necessary space, and updates the references of the B-tree to point to a local storage before the data is transferred. When writing the data to persistent storage, a snapshot created on the master copy is an operation that is replicated to the slave copy. The snapshot is generated using a volume view that includes changes to chunks of data of the master copy since a previous snapshot, as determined using the operation number for the previous snapshot. Data (and metadata) for the snapshot is written to persistent storage while new input/output operations are processed.
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公开(公告)号：US20180232165A1
公开(公告)日：2018-08-16
申请号：US15433956
申请日：2017-02-15
Applicant: Amazon Technologies, Inc.
Inventor： Norbert Paul Kusters , Nachiappan Arumugam , Andre Podnozov , Shobha Agrawal , Shreyas Ramalingam , Danny Wei , David R. Richardson , Marc John Brooker , Christopher Nathan Watson , John Luther Guthrie, II , Ravi Nankani
CPC classification number: G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/2058 , G06F11/2064 , G06F11/2071 , G06F2201/84
Abstract: A data storage system includes a head node and mass storage devices. The head node is configured to flush data stored in a storage of the head node to a set of the mass storage devices of the data storage system. A head node may flush both current version data and point-in-time version data to the set of mass storage devices. Also, the data storage system maintains an index that indicates storage locations of data for particular portions of a volume before and after the data is flushed to the set of mass storage devices. In some embodiments an index includes a current version reference for a volume or portion of a volume and one or more point-in-time snapshot references.
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公开(公告)号：US09893972B1
公开(公告)日：2018-02-13
申请号：US14571223
申请日：2014-12-15
Applicant: Amazon Technologies, Inc.
Inventor： Marc Stephen Olson , Jeevan Shankar , James Michael Thompson , Danny Wei , John Robert Smiley , John Luther Guthrie, II , Nachiappan Arumugam , Benjamin Arthur Hawks
CPC classification number: H04L43/0876 , H04L67/10
Abstract: Systems and methods are described providing detailed input/output (I/O) metric information that is collected and gathered by an agent of the storage volume. An I/O request is received by a storage volume, and the agent associates primary and secondary identifiers with that I/O request. For example, a trace may be associated with that I/O request. The agent may store this I/O metric information in a ring buffer. Further, after collection and aggregation, statistics may be published by an I/O metric service that further processes the data provided by the agent. Advantageously, interdependent relationships associated with the I/O request or I/O operations of that request may be included in those statistics. This may allow an operator to evaluate the performance of I/O requests for a network.
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Patent Agency Ranking
公开(公告)号：US09733869B1
公开(公告)日：2017-08-15
申请号：US14866652
申请日：2015-09-25
Applicant: Amazon Technologies, Inc.
Inventor： Jianhua Fan , Benjamin Arthur Hawks , Norbert Paul Kusters , Nachiappan Arumugam , Danny Wei , John Luther Guthrie, II
IPC: G06F3/06
CPC classification number: G06F3/0665 , G06F3/0619 , G06F3/065 , G06F3/067 , G06F11/1435
Abstract: A slave storage is provisioned using metadata of a master B-tree and updates to references (e.g., offsets) pertaining to data operations of the master B-tree. Master-slave pairs can be used to provide data redundancy, and a master copy can include the master B-tree with references to corresponding data. When provisioning a slave copy, the master sends a B-tree copy to the slave, which stores the slave B-tree copy, allocates the necessary space on local storage, and updates respective offsets of the slave B-tree copy to point to the local storage. Data from the master can then be transferred to the slave and stored according to a note and commit process that ensures operational sequence of the data. Operations received to the master during the process can be committed to the slave copy until the slave is consistent with the master and able to take over as master in the event of a failure.
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公开(公告)号：US11237772B2
公开(公告)日：2022-02-01
申请号：US16714589
申请日：2019-12-13
Applicant: Amazon Technologies, Inc.
Inventor： Norbert P. Kusters , Nachiappan Arumugam , Christopher Nathan Watson , Marc John Brooker , David R. Richardson , Danny Wei , John Luther Guthrie, II
Abstract: A data storage system includes multiple data storage units and a zonal control plane. The zonal control plane assigns volumes to respective ones of the data storage units. The data storage units include multiple head nodes and data storage sleds. At least one of the head nodes implements a local control plane for the data storage unit. Also, the head nodes of each data storage unit are configured to service read and write requests directed to one or more volumes serviced by the data storage unit independent of the zonal control plane.
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公开(公告)号：US20200083909A1
公开(公告)日：2020-03-12
申请号：US16684992
申请日：2019-11-15
Applicant: Amazon Technologies, Inc.
Inventor： Norbert P. Kusters , Nachiappan Arumugam , Christopher Nathan Watson , Marc John Brooker , David R. Richardson , Danny Wei , John Luther Guthrie, II , Leah Shalev
Abstract: A data storage system includes multiple head nodes and data storage sleds. The data storage sleds include multiple mass storage devices and a sled controller. Respective ones of the head nodes are configured to obtain credentials for accessing particular portions of the mass storage devices of the data storage sleds. A sled controller of a data storage sled determines whether a head node attempting to perform a write on a mass storage device of a data storage sled that includes the sled controller is presenting with the write request a valid credential for accessing the mass storage devices of the data storage sled. If the credentials are valid, the sled controller causes the write to be performed and if the credentials are invalid, the sled controller returns a message to the head node indicating that it has been fenced off from the mass storage device.
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公开(公告)号：US20200053022A1
公开(公告)日：2020-02-13
申请号：US16660580
申请日：2019-10-22
Applicant: Amazon Technologies, Inc.
Inventor： Pieter Kristian Brouwer , Marc Stephen Olson , Nachiappan Arumugam , Michael Thacker , Vijay Prasanth Rajavenkateswaran , Arpit Tripathi , Danny Wei
IPC: H04L12/927
Abstract: A user can set or modify operational parameters of a data volume stored on a network-accessible storage device in a data center. For example, the user may be provided access to a data volume and may request a modification to the operational parameters of the data volume. Instead of modifying the existing data volume, the data center can provision a new data volume and migrate data stored on the existing data volume to the new data volume. While the data migration takes place, the existing data volume may block input/output (I/O) requests and the new data volume may handle such requests instead. Once the data migration is complete, the data center may deallocate the data blocks of the existing data volume such that the data blocks can be reused by other data volumes.
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公开(公告)号：US10521135B2
公开(公告)日：2019-12-31
申请号：US15433951
申请日：2017-02-15
Applicant: Amazon Technologies, Inc.
Inventor： Norbert Paul Kusters , Nachiappan Arumugam , Andre Podnozov , Shobha Agrawal , Shreyas Ramalingam , Danny Wei , David R. Richardson , Marc John Brooker , Christopher Nathan Watson , John Luther Guthrie, II , Ravi Nankani
Abstract: A data storage system includes a head node and mass storage devices. The head node is configured to flush data stored in a storage of the head node, based at least in part on one or more triggers being met, from the storage of the head node to a set of the mass storage devices of the data storage system. The flushed data is written to a segment of free storage space across the set of the mass storage devices allocated for the given data flush operation. In some embodiments, a head node may flush both current version data and point-in-time version data to the set of mass storage devices. Also, the data storage system maintains an index that indicates storage locations of data for particular portions of a volume before and after the data is flushed to the set of mass storage devices.
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