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RHEL主机显示的LUN大小与存储端LUN的实际大小不同

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适用场景

  • ONTAP 9.
  • RHEL的"已配置的主机"

问题描述

  • 对于所有新创建的LUN、RHEL主机显示的大小(在此示例中为9 TB)与实际LUN大小(在此示例中为5 TB)不同。
  • 在为集群模式RHEL主机配置测试LUN时、某些节点可能会看到LUN、而某些节点则无法看到。
  • sg_inq sg_readcap -v RHEL主机上的输出 显示主机可以读取目标LUN、甚至显示正确的大小、但并未反映主机端的正确大小

output-sg_inq和sg_readcap-v.png

  • df-h 显示它已挂载到主机端
  •  在主机端的中观察到陈旧条目 var/log/messages,这可能会 在多路径上产生不必要的发生原因负载,并可能导致主机行为异常。

显示不同LUN大小的RHEL主机

  • 主机正在从这些陈旧条目中读取某些LUN的大小、因为连接的上一个LUN具有其他大小、而当前连接的LUN具有其他大小。

RHEL主机显示的LUN大小与存储端LUN的实际大小不同

 

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