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AIQUM 9.7+ 或 NSLM 可以自动为工作负载启用自适应 QoS

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适用场景

  • ONTAP 9.3 或更高版本
  • Active IQ Unified Manager ( AIQUM ) 9.7 或更高版本
  • 自适应 QoS ( AQoS )
  • NetApp Service Level Manager ( NSLM ) 1.2 或更高版本
  • 性能服务级别( PSL )
  • 工作负载是通过 NSLM 或 AIQUM 创建的

问题描述

  • 工作负载可以通过 AQO 来限制,而无需手动明确创建 AQO 策略。
  • 附加到工作负载的这种意外 AQO 策略可能会导致 QoS Min 延迟中心出现高延迟。 

示例:

 Cluster::> qos statistics volume latency show Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ... vol1-wid21368 21368 879.73ms 283.00us 9.00us 498.00us 184.00us 0ms 877.99ms 216.00us vol2-wid19287 19287 736.25ms 401.00us 8.00us 734.00us 166.00us 0ms 734.91ms 199.00us 

注:

  • 这种高延迟可能与 升级到 ONTAP 9.7后由于 QoS 最小化而导致延迟增加中所述的新 QoS 下限 v2 行为有关。 
  • 但本知识库主要侧重于 AIQUM/NSLM 导致的意外 AQO 策略设置所导致的后果。 
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