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在 CVO 实例上, NFS 服务器无响应或 NVRAM 所需时间超过正常时间

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适用场景

  • ONTAP 9
  • Cloud Volumes ONTAP for AWS
  • 适用于 Azure 的 Cloud Volumes ONTAP

问题描述

  • 客户端会收到 "NFS 服务器未响应 " 消息。
    • Aug 23 13:08:29 linux kernel: [1966881.247069] nfs: server fileserver.domain.com not responding, still trying
  • EMS 表示操作较长
    • Mon Aug 23 12:02:23 +0100 [ONTAP-01: wafl_exempt13: vnvram.dma.long.wait:alert]: vNVRAM flush taking over 10 seconds.
    • Mon Aug 23 12:02:38 +0100 [ONTAP-01: kernel: Nblade.nfsLongRunningOp:debug]: Detected a long running network process operation. The client IP address:port is 10.10.10.22:691. The local IP address:port is 10.10.10.23:2049. The protocol requesting the operation is NFS3. The RPC program number for the operation is 100003. The protocol procedure for the operation is Write (7). The disk process UUID is 210137455afd11eb9a0e000d3ad879a8. The Vserver associated with the operation is SVM01. The UID of the user is 769. The MSID for the volume is 2163530000. The inode number of the file is 350.

 

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