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如何知道 OnCommand 报告的延迟是否准确?

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适用场景

  • 集群模式 Data ONTAP / ONTAP
  • 所有 OnCommand 产品

问题解答

  • OnCommand 产品直接从 ONTAP 获取数据,即 5 分钟平均值
    • 只持续几秒后进入空闲状态的任何工作 如果延迟较高,则不会反映或反映出来 增加幅度非常小
  • 这与您可以获取的运行 qos statistics 命令数据相同 或 statisticsworkload

示例:qos statistics 使用命令检查卷qos statistics volume latency show

Workload      ID   Latency   Network   Cluster     Data    Disk  QoS Max   QoS Min    NVRAM  
--------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
-total-        -    4.71ms   185.00us    7.00us   468.00us    4.04ms     0ms     0ms   11.00us
vol1       32140   22.22ms   86.00us   125.00us   904.00us   21.11ms     0ms     0ms    1.00us
-total-        -    4.58ms   253.00us    7.00us   991.00us    3.32ms     0ms     0ms   11.00us
vol1        32140   29.69ms   90.00us   162.00us    2.61ms   26.82ms     0ms     0ms    1.00us
-total-        -    2.55ms   229.00us    8.00us   589.00us    1.71ms     0ms     0ms   13.00us
vol1        32140   18.84ms   61.00us   314.00us   136.00us   18.32ms     0ms     0ms    1.00us
-total-        -    4.33ms   198.00us    9.00us  1221.00us    2.88ms     0ms     0ms   13.00us
vol1        32140   177.16ms   113.00us   226.00us   108.03ms   68.79ms     0ms     0ms    2.00us
-total-        -    4.09ms   233.00us   12.00us  1029.00us    2.81ms     0ms     0ms   12.00us
vol1        32140   37.79ms   215.00us   158.00us    1.84ms   35.58ms     0ms     0ms    1.00us
-total-        -    3.45ms   194.00us   10.00us   780.00us    2.45ms     0ms     0ms   15.00us
vol1        32140   30.85ms   91.00us   138.00us  1169.00us   29.45ms     0ms     0ms    2.00us
-total-        -    2.21ms   210.00us    6.00us   645.00us  1340.00us     0ms     0ms   11.00us

     
      要对历史数据性能归档进行比较,必须查看这些归档 由技术支持工程师提供
     

     

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