Dell Unity: How To Confirm And Configure The NFS Credentials Cache Retention Value

Summary: When a Network File System (NFS) user requests access to exports, the server retrieves their credentials from external naming services or local files to authenticate them. Afterwards, these credentials are stored in an internal credential cache. ...

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Instructions

The qualifier creditCacheRetention specifies the amount of time (in minutes) when the credential cache refreshes or times out. This parameter has a default value of 15 minutes.

The following command verifies the details of each NFS export:

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

 

The next commands change the Credentials cache retention qualifier and confirm the new value. For this example, nfs_1 is modified.

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™ Family Unisphere® Command Line Interface User Guide Version 5.5.1 (July 2025)

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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