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使用 CIFS 基于访问的枚举时对性能的影响

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ontap-9
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适用于

  • ONTAP 9
  • CIFS
  • 访问基础枚举 (ABE)

问题描述

当性能问题与 ABE 相关时,可能会出现部分或全部以下症状:

  • 在一个或多个 CIFS 共享上启用了 ABE(这绝对必须存在)
  • 在启用了 ABE 的 CIFS 共享上具有非常高的延迟,可能是数百毫秒
  • 查看 qos statistics volume latency show 命令显示大多数延迟位于 Data 列下
  • 查看 perfstat 部分"QoS 工作负载报告"显示工作负载在 CPU_wafl_exempt 上的等待时间,可能是数百毫秒
  • 该共享被许多用户访问
  • 该共享具有高文件计数(数百万个文件)

 

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