Unix root user not able to access NTFS volume when there is no name mapping for root user

• ONTAP 9
• Multiple Protocol Access

Not able to access NTFS volume from unix client using root user and getting below error:

• EMS:

secd.nfsAuth.problem: vserver (vs1) General NFS authorization problem. Error: Get user credentials procedure failed

• SECD:

Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] |                                 RPC FAILURE:                                 |
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] |                      secd_rpc_auth_get_creds has failed                      |
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] |                        Result = 0, RPC Result = 7037                         |
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] |                   RPC received at Thu Feb 19 08:26:37 2026                   |
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] |------------------------------------------------------------------------------'
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] Failure Summary:
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] Error: Get user credentials procedure failed
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155]   [  3 ms] Determined UNIX id 0 is UNIX user 'root'
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155]   [     3] Trying to map 'root' to Windows user 'root' using implicit mapping
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155]   [    17] Successfully connected to ip 10,10.10.1 port 445 using TCP
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155]   [    21] Successfully authenticated with DC domain.local
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155]   [    26] Could not find Windows name 'root'
Thu Feb 19 2026 08:26:37 +00:00 [kern_secd:info:14155] **[    26] FAILURE: Name mapping for UNIX user 'root' failed with transient errors.