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由于Flash Cache发生故障、ONTAP重新启动后延迟较长

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ontap-9
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perf<a>2009909884</a>
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适用场景

  • 修复了错误 1164008的ONTAP版本
    • ONTAP 9.3P9及更高版本
    • ONTAP 9.4P4+
    • ONTAP 9.5及更高版本
  • Flash Cache

问题描述

在ONTAP重新启动后立即观察到高延迟、并出现以下症状:

  • 增加磁盘使用量
  • 磁盘IO延迟较长
  • Flash Cache无命中(ext_cache)
  • Flash Cache卡状态为 ok in sysconfig -a 
slot 1: Flash Cache NVMe Serial Number: ZEP00GPR Part Number: 119-00329 Hardware Revision: A0 Firmware Version: NA03 Model Name: X3311A Capacity: 1024 GB State: ok

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