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如何对间歇性NFS访问问题进行故障排除

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Category:
ontap-9
Specialty:
nfs
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适用场景

  • ONTAP 9
  • NAS 协议

问题描述

通常、会出现间歇性问题、导致无法通过NFS访问数据、从而在客户端记录一些错误消息
、但在存储器端没有任何错误

Aug 27 13:22:54 ubuntu kernel: [259435.957429] nfs: server test93 not responding, still trying
Aug 27 13:23:08 ubuntu kernel: [259450.703137] nfs: server test93 OK
Aug 27 13:26:36 ubuntu kernel: [259658.162095] nfs: server test93 not responding, still trying
Aug 27 13:50:47 ubuntu kernel: [261109.661151] nfs: server test93 not responding, still trying
Aug 27 13:51:06 ubuntu kernel: [261128.092933] nfs: server test93 not responding, still trying
Aug 27 13:51:44 ubuntu kernel: [261166.098494] nfs: server test93 OK
Aug 27 13:51:44 ubuntu kernel: [261166.099052] nfs: server test93 OK

这些错误不足以了解问题发生在何处、我们需要收集更多数据来解决问题描述

首先、我们需要收集有关此问题描述 的影响的信息

此问题最初是在何时开始的?
此问题是否特定于远程客户端?本地客户端?所有客户端?
哪个版本的NFS协议会受到影响?
此存储系统如何连接到网络?存储系统是否使用千兆以太网端口?客户端/服务器是通过千兆还是100Base-T连接的?
此问题是持续发生还是仅在特定时间发生?
是否存在与存储器没有直接关系的活动?

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