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    Write performance distribution monitoring for write operation adaptation
    5.
    发明授权
    Write performance distribution monitoring for write operation adaptation 有权

    公开(公告)号：US11422711B1

    公开(公告)日：2022-08-23

    申请号：US17107135

    申请日：2020-11-30

    申请人： Pure Storage, Inc.

    发明人： Greg R. Dhuse ,  Jason K. Resch ,  Ethan S. Wozniak

    IPC分类号： G06F3/06 ,  G06F11/30 ,  G06F11/34 ,  G06F11/10 ,  G06F12/14 ,  H03M13/37 ,  H04L67/1097 ,  H03M13/15

    摘要： A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and a processing module operably coupled to the interface and memory such that the processing module, when operable within the computing device based on the operational instructions, is configured to perform various operations. For example, the computing device monitors storage unit (SU)-based write transfer rates and SU-based write failure rates associated with each of the SUs for a write request of encoded data slices (EDSs) to the SUs within the DSN. The computing device generates and maintains a SU write performance distribution based on monitoring of the SU-based write transfer rates and the SU-based write failure rates and adaptively adjusts a trimmed write threshold number of EDSs and/or a target width of EDSs for write requests of sets of EDSs to the SUs within the DSN.

    Variable Write Threshold Storage Replication Sites in a Distributed Storage Network
    8.
    发明申请
    Variable Write Threshold Storage Replication Sites in a Distributed Storage Network 有权

    公开(公告)号：US20220374153A1

    公开(公告)日：2022-11-24

    申请号：US17817443

    申请日：2022-08-04

    申请人： Pure Storage, Inc.

    发明人： Greg R. Dhuse ,  Jason K. Resch ,  Ethan S. Wozniak

    IPC分类号： G06F3/06 ,  H04L67/1097 ,  H03M13/37 ,  G06F11/10 ,  G06F12/14 ,  G06F11/34 ,  G06F11/30

    摘要： A computing device includes an interface configured to interface and communicate with a storage network, a memory that stores operational instructions, and a processing module operably coupled to the interface and memory configured to transmit a write request for a first write threshold number of encoded data slices of a set of encoded data slices to a set of storage units associated with a first storage site and transmit a write request for a second write threshold number of encoded data slices to a set of storage units associated with a second storage site. The processing module is configured to receive a read request for a read threshold number of encoded data slices of the set of encoded data slices, determine whether a read threshold number of encoded data slices of the set of encoded data slices is available in the set of storage units associated with the first storage site and when a read threshold number of encoded data slices of the set of encoded data slices is not available in the set of storage units associated with a first storage site, transmit a read request for a read threshold number of encoded data slices to the set of storage units associated with a second storage site.

    Peer-assisted data rebuilding
    10.
    发明授权
    Peer-assisted data rebuilding 有权

    公开(公告)号：US11210151B1

    公开(公告)日：2021-12-28

    申请号：US16794617

    申请日：2020-02-19

    申请人： Pure Storage, Inc.

    发明人： Ravi V. Khadiwala ,  Ethan S. Wozniak ,  Jason K. Resch

    IPC分类号： G06F11/07 ,  G06F11/10 ,  H03M13/37 ,  H04L29/08 ,  H03M13/15 ,  H03M13/09

    摘要： A distributed storage network (DSN) stores sets of encoded data slices in sets of storage units. A first storage unit assigned to store an encoded data slice included in a set of encoded data slices transmits a rebuild request associated with the storage error to a second storage unit. The second storage unit generates the rebuilt encoded data slice in response to the rebuild request, and transmits the rebuilt encoded data slice back to the first storage unit, which stores the rebuilt encoded data slice.