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为什么 NFS IO 在接管和交还期间或聚合重定位期间停止

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适用于

  • ONTAP 9
  • NFSv4.x
  • NFSv3

回答

  • 当通过 NFSv4 向客户端提供数据的存储系统处于接管/放弃模式时，或当执行聚合重新定位等操作时，I/O 会停止
  • NFSv4.x 是一种类似于 SMB/CIFS 的有状态协议
  • 每当您在使用有状态协议时更改所连接的接口时，都会出现短暂中断
  • 应用程序预计会在宽限期内恢复
  • 当使用 NFSv3 时，如果聚合被重新定位到另一个节点，则 NLM 锁回收将在  locking.grace_lease_seconds 节点级别选项指定的持续时间内发生，因此，NFSv3 访问也将受到影响。

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