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为什么修改卷选项"-snapdir-access"需要重新挂载？

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fas-systems
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nas
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适用场景

  • ONTAP 9
  • NFSv3

问题解答

  • 行为取决于客户端是否发送 V3查找呼叫。
  • 如果客户端发送 V3查找调用，则存储系统将根据当前 -snapdir-access 设置做出相应响应。
  • 如果客户端引用本地目录缓存而不发送 V3查找调用，则 存储端的新-snapdir-access设置将不会生效。
示例：
 
已禁用-snapdir-access：
 
80  2024-04-06 14:25:00.017290 0.000079 Client_IP 698 Storage_IP 2049 NFS 226 V3 LOOKUP Call (Reply In 81), DH: 0x69edfd3b/.snapshot
81  2024-04-06 14:25:00.017384 0.000094 Storage_IP 2049 Client_IP 698 NFS 186 V3 LOOKUP Reply (Call In 80) Error: NFS3ERR_NOENT
 
[root@centos1 mnt]# cd .snapshot
-bash: cd: .snapshot: No such file or directory
 
 
-snapdir-access enabled：
 
82 2024-04-06 14:52:03.471510 0.000067 Client_IP 978 Storage_IP 2049 NFS 226 V3 LOOKUP Call (Reply In 83), DH: 0x69edfd3b/.snapshot
83 2024-04-06 14:52:03.471599 0.000089 Storage_IP 2049 Client_IP 978 NFS 322 V3 LOOKUP Reply (Call In 82), FH: 0x0408dcdd
 
[root@centos1 mnt]# cd .snapshot
[root@centos1 .snapshot]#

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