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    Controlling I/O Q-connections in NVMe devices
    3.
    发明授权
    Controlling I/O Q-connections in NVMe devices 有权

    公开(公告)号：US11599271B2

    公开(公告)日：2023-03-07

    申请号：US17304868

    申请日：2021-06-28

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Komateswar Dhanadevan ,  Shyamsundar Narasimhan

    IPC: G06F3/06

    Abstract: Examples include selectively adjusting I/O Q-connections between an NVMe controller and a storage device in an NVMe system. In some examples, a utilization time of a host port in an NVMe controller is determined. In response to determining that the utilization time of the host port is lower than a host port utilization threshold and a number of I/O Q-connections at the storage device is less than an I/O Q-connection threshold for the storage device, a candidate list of storage devices is created, each storage devices included in the candidate list having an average service time greater than or equal to an average service time of a host port associated with the storage device. For each storage device included in the candidate list, processing time and I/O block size of I/O requests at the storage device is determined and a number of I/O Q-connections at the storage device is selectively adjusted based on the processing time and I/O block size of I/O requests at the storage device.

    DATA BLOCKS MIGRATION
    5.
    发明申请
    DATA BLOCKS MIGRATION 审中-公开

    公开(公告)号：US20180246659A1

    公开(公告)日：2018-08-30

    申请号：US15445496

    申请日：2017-02-28

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Vivek Agarwal ,  Komateswar Dhanadevan ,  Rupin T. Mohan ,  Douglas L. Voigt

    IPC: G06F3/06 ,  G06F17/30 ,  G06N3/04

    CPC classification number: G06F16/214 ,  G06F3/0605 ,  G06F3/0647 ,  G06F3/0683 ,  G06N3/04 ,  G06N3/084

    Abstract: Examples disclosed herein relate to migration of data blocks. In an example, data blocks for migration from a source data storage device to a destination data storage device may be identified. A migration priority for each of the data blocks may be determined. The determination may comprise determining a plurality of parameters for each of the data blocks based on an analysis of respective input/output (I/O) operations of the data blocks in relation to a host system. The plurality of parameters may be provided as an input to an input layer of an artificial neural network engine. The input may be processed by a hidden layer of the artificial neural network engine. An output may be provided by an output layer of the artificial neural network engine. In an example, the output may include a migration priority for each of the data blocks.

    Automatically updating zone information in a storage area network
    7.
    发明授权
    Automatically updating zone information in a storage area network 有权

    公开(公告)号：US10708140B2

    公开(公告)日：2020-07-07

    申请号：US15953685

    申请日：2018-04-16

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Komateswar Dhanadevan ,  Harish Chapalamadugu

    IPC: H04L12/24 ,  H04L29/08 ,  H04L12/40

    Abstract: Examples disclosed herein relate to automatically updating of zoning information in a SAN. In an example, a network switching device in a SAN may automatically detect a new HBA port at a port where a prior HBA port was coupled. In response to detecting, network switching device may automatically determine a zone that the prior HBA port belonged to, from a map database on network switching device that stores mapping information comprising an ID of the prior HBA port, an ID of the port, a zone name associated with the ID of the port, and a status of the zone. In response to determining, network switching device may automatically update zoning information on network switching device to replace the ID of the prior HBA port with an ID of the new HBA port, for the zone that the prior HBA port belonged to.

    Virtual target port aggregation
    8.
    发明授权
    Virtual target port aggregation 有权

    公开(公告)号：US10348519B2

    公开(公告)日：2019-07-09

    申请号：US15523102

    申请日：2014-11-20

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Komateswar Dhanadevan ,  Navaruparajah Nadarajah ,  Rajesh Nadubail ,  Harsha Basavarajappa ,  Renjith P George

    IPC: H04L12/64 ,  G06F13/40 ,  G06F3/06

    Abstract: Approaches for aggregating ports of switch connected to ports of a target node, are described. In one example, for a fiber channel exchange received from a host node, for a target node a plurality of target node ports of the target node associated with the virtual port are determined. The fiber channel exchange comprises a sequence of frame. Once the plurality of target node ports are determined, a first frame is directed to one target node port selected from the plurality of the target node ports, where the one target node port is selected based port selection criteria. Based on the directing of the first frame, subsequent frames of the fiber channel exchange to the selected one target node port are also directed.

    CONTROLLING I/O Q-CONNECTIONS IN NVMeTM DEVICES
    9.
    发明申请
    CONTROLLING I/O Q-CONNECTIONS IN NVMeTM DEVICES 有权

    公开(公告)号：US20220261158A1

    公开(公告)日：2022-08-18

    申请号：US17304868

    申请日：2021-06-28

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Komateswar Dhanadevan ,  Shyamsundar Narasimhan

    IPC: G06F3/06

    Abstract: Examples include selectively adjusting I/O Q-connections between an NVMe controller and a storage device in an NVMe system. In some examples, a utilization time of a host port in an NVMe controller is determined. In response to determining that the utilization time of the host port is lower than a host port utilization threshold and a number of I/O Q-connections at the storage device is less than an I/O Q-connection threshold for the storage device, a candidate list of storage devices is created, each storage devices included in the candidate list having an average service time greater than or equal to an average service time of a host port associated with the storage device. For each storage device included in the candidate list, processing time and I/O block size of I/O requests at the storage device is determined and a number of I/O Q-connections at the storage device is selectively adjusted based on the processing time and I/O block size of I/O requests at the storage device.

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