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GCP Cloud Volumes ONTAP 上 NVLOG 传输的高延迟

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适用于

  • Cloud Volumes ONTAP for GCP
  • ONTAP 9

问题

  • 用户工作负载在任何协议(NAS 或 SAN)上的响应速度都很慢。
  • 在 NVRAM 列下的 qos statistics volume latency show 中可以看到延迟。
  • ::> qos statistics volume latency show
    Workload            ID    Latency    Network    Cluster       Data       Disk        QoS      NVRAM      Cloud  FlexCache    SM Sync
    --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
    -total-              -   195.97ms   150.00us        0ms   796.00us        0ms        0ms 1195.03ms        0ms        0ms        0ms
    data1-wid30897   30897      1.60s   157.00us        0ms   818.00us        0ms        0ms     1.60s        0ms        0ms        0ms
    -total-              -   536.23ms   110.00us        0ms   495.00us        0ms        0ms  535.63ms        0ms        0ms        0ms
    data1-wid30897   30897        0ms        0ms        0ms        0ms        0ms        0ms       0ms        0ms        0ms        0ms
    -total-              -      7.42s   136.00us        0ms   743.00us        0ms        0ms     7.42s        0ms        0ms        0ms
    data1-wid30897   30897  1137.67ms     1.65ms        0ms     3.55ms        0ms        0ms 1132.47ms        0ms        0ms        0ms

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