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过多的重复数据删除作业可能会降低 ONTAP 系统中的可用 IOPS 并增加延迟

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适用于

  • ONTAP 9
  • AIQUM

问题

  • 在高峰生产时间运行活动重复数据消除 (SIS) 作业可能会增加工作负载延迟
  • AIQUM 中的可用 IOPS 在此期间将显示为 0，如下所示

Excessive Deduplication jobs may decrease available IOPS and increase latency in ONTAP systems

  • 磁盘延迟或利用率可能会突然增加
  • 太多重复数据删除进程同时运行，如下所示：

::> volume efficiency show -op-status active

注意：由于无延迟重复数据删除导致高 CPU 是预期的，因此本文不适用

 

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