Dell Unity：如何确认和配置 NFS 凭据缓存保留值

Summary: 当网络文件系统 （NFS） 用户请求访问导出项时，服务器将从外部命名服务或本地文件检索其凭据以对其进行身份验证。之后，这些凭据存储在内部凭据缓存中。

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Instructions

限定符 creditCacheRetention 指定凭据缓存刷新或超时的时间量（以分钟为单位）。此参数的默认值为 15 分钟。

以下命令会验证每个 NFS 导出的详细信息：

15:23:40 service@FNMXXXXX spa:~/user# uemcli /net/nas/nfs show -detail

1:    ID                                = nfs_1
      NAS server                        = nas_1
      NFSv3 enabled                     = yes
      NFSv4 enabled                     = no
      Hostname                          =
      Secure NFS enabled                = no
      Kerberos Domain Controller type   =
      Service principal name            =
      Extended Unix credentials enabled = no
      Credentials cache retention       = 15m

2:    ID                                = nfs_2
      NAS server                        = nas_2
      NFSv3 enabled                     = yes
      NFSv4 enabled                     = no
      Hostname                          =
      Secure NFS enabled                = no
      Kerberos Domain Controller type   =
      Service principal name            =
      Extended Unix credentials enabled = no
      Credentials cache retention       = 15m

3:    ID                                = nfs_12
      NAS server                        = nas_12
      NFSv3 enabled                     = no
      NFSv4 enabled                     = yes
      Hostname                          =
      Secure NFS enabled                = no
      Kerberos Domain Controller type   =
      Service principal name            =
      Extended Unix credentials enabled = no
      Credentials cache retention       = 15m

 

接下来的命令会更改 Credentials cache retention 并确认新值。在此示例中， nfs_1 被修改。

15:23:50 service@FNMXXXXX spa:~/user# uemcli /net/nas/nfs -id nfs_1 set -credCacheRetention 20

ID = nfs_1
Operation completed successfully.


15:28:27 service@FNMXXXXX spa:~/user# uemcli /net/nas/nfs -id nfs_1 show -detail

1:    ID                                = nfs_1
      NAS server                        = nas_1
      NFSv3 enabled                     = yes
      NFSv4 enabled                     = no
      Hostname                          =
      Secure NFS enabled                = no
      Kerberos Domain Controller type   =
      Service principal name            =
      Extended Unix credentials enabled = no
      Credentials cache retention       = 20m

Additional Information

Dell Unity™ 系列 Unisphere® 命令行界面用户指南 5.5.1 版 （2025 年 7 月）

Affected Products

Dell EMC Unity, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Hybrid
Article Properties
Article Number: 000004512
Article Type: How To
Last Modified: 30 Oct 2025
Version:  4
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