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如何识别卷名称已截断的高延迟卷?

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适用场景

  • ONTAP 9
  • 服务质量 (QoS)
  • 超过15个字符的卷名称
  • 自动卷流工作负载
  • 工作负载ID (WID)

问题描述

可以使用以下命令行界面命令快速识别延迟较高的卷。

  • qos statistics volume latency show
  • qos statistics volume performance show
  • qos statistics workload latency show
  • qos statistics workload performance show

     

这将在命令输出的第一列(Workload 列)中显示延迟最高的前10个工作负载。

示例:

Cluster::> qos statistics volume latency show
Workload     ID   Latency    Network   Cluster   Data     Disk     QoS       NVRAM    Cloud 
---------------  ------ ----------  ---------- ---------- ---------- ---------- ----------  ---------- ---------- 
-total-      -     1277.00us   251.00us   0ms     553.00us   473.00us   0ms     0ms     0ms 
VOL_VMware_te.. 19547 41.50ms   2.69ms    9.00us   29.68ms   9.13ms    0ms     0ms     0ms    
VOL_VMware_te.. 5658 16.00ms   3.58ms    8.00us   11.80ms   619.00us   0ms     0ms     0ms      
vol1-wid28961   28961  13.28ms    3.67ms    3.00us    9.44ms   159.00us   0ms     0ms     0ms 

注:

  • WID19457 是指卷的自动卷工作负载 VOL_VMWARE_testing1
  • WID 5658 是指卷的自动卷工作负载 VOL_VMWARE_testing2
  • 它们在截断后的显示方式相同 

这是预期行为- Workload 列中最多可显示15个字符。任何超过15个字符的工作负载将被截断为13个字符、并在末尾加上两个点

 

如果在类似的命名约定 Workload中存在多个长卷名称、则可能很难缩小所需的确切卷范围、因为多个卷可能会共享截断后列中显示的相同工作负载名称。

本文提供了一种根据 ID 列中显示的WID查找相关卷的方法。 

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