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如果附加了qtree QoS策略、则FlexGroup成分卷不会报告正确的IOPS

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perf<a>2009568572</a>
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适用场景

  • ONTAP 9
  • FlexGroup
  • qtree
  • ActiveIQ Unified Manager ( AIQUM )

问题描述

  • 附加到FlexGroup中的qtrees的QoS策略
  • 大多数IOS都会应用于这些qtrees
  • 对于FlexGroup成分卷、不会报告任何操作或低于预期的操作、而整个FlexGroup仍会报告正确的操作和延迟
  • 这可以通过命令行界面、AIQ UM或其他性能监控工具进行确认

示例:

cluster::> qos statistics volume performance show -show-flexgroup-as-constituents true
Workload       ID      IOPS    Throughput   Latency 
---------------    ------ -------- ---------------- ---------- 
-total-        -     618635   32261.01MB/s    2.15ms 
fg1__0001-wid22877 22877     2      0KB/s     200.00us 
fg1__0013-wid12390 12390     1      0KB/s     394.00us 

 

注: 

  • show-flexgroup-as-constituents 已指定、则此命令应显示FlexGroup成分卷级别的性能统计信息
  • 尽管集群的总操作数高于60万次/秒、但排名前几位的成分卷每秒只能执行1到2次操作。大差距是令人关切的问题

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