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读取 I/O 请求中的磁盘利用率可能发生原因会导致 ONTAP 内部服务出现故障

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Category:
ontap-9
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perf<a>延迟</a><a>磁盘</a><a>崩溃</a><a>2008947444</a><a>1086469</a>
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适用场景

ONTAP 9

问题描述

  • 在极少数情况下、如果读取I/O请求在较长的时间(例如10分钟以上)内产生100%的磁盘利用率、则较低优先级的ONTAP 系统内部磁盘读取可能会超时。
  • 这可能会导致出现其他ONTAP 非常见症状、例如:
    1. unknown执行时、存在聚合状态 aggregate show
    2. 丢失特定节点的正常运行时间信息、但该节点未进行故障转移
    3. 列出集群中某些节点的状态后可识别的暂停

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