PowerScale: NDMP Backups Fail with Error "ERRO:NDMP security.c:401:securityAuthenticateClient MD5 authorization by user 'x' failed"
Resumen: The scope of this KB is to interpret an error where an NDMP administrator does not get authenticated.
Este artículo se aplica a
Este artículo no se aplica a
Este artículo no está vinculado a ningún producto específico.
No se identifican todas las versiones del producto en este artículo.
Síntomas
NDMP backups fail when attempting to authenticate an NDMP administrator account. A sample error can be found here:
In this example, the PowerScale cancels the backup as the NDMP user cannot be authenticated.
powerscale-5(id5) isi_ndmp_d[7090]: ERRO:NDMP security.c:401:securityAuthenticateClient MD5 authorization by user 'ndmpadmin' failed
In this example, the PowerScale cancels the backup as the NDMP user cannot be authenticated.
Sun Oct 10 18:00:01 2021 (1633914001): Received from x.x.x.x; Session:7090 Message : 0x901 (NDMP_CONNECT_CLIENT_AUTH) Timestamp : 1633816801 XSequence : 3 RSequence : 3 Error : 0 (NDMP_NO_ERR) Auth Type : 2 (MD5) Id : ndmpadmin Digest : <MD5 hash> Sun Oct 10 18:00:01 2021 (1633914001): Transmitted to x.x.x.x; Session:7090 Message : 0x901 (NDMP_CONNECT_CLIENT_AUTH) Timestamp : 1633816801 XSequence : 4 RSequence : 3 Error : 0 (NDMP_NO_ERR) Error : 4 (NDMP_NOT_AUTHORIZED_ERR !!!)
Causa
One or multiple scenarios have occurred for the NDMP administrator account (applies to both the Isilon and DMA):
- The password expired on and must be reset.
- The account got locked and must be unlocked.
- The password does not match on both the PowerScale and DMA.
- The password expired on and must be reset.
- The account got locked and must be unlocked.
- The password does not match on both the PowerScale and DMA.
Resolución
It is advised to have the user verify the account properties on both the PowerScale and DMA side and follow the check list provided above.
Información adicional
An NDMP administrator account is required for NDMP backups and restores. They must be configured on both the PowerScale and DMA (Avamar, NetWorker, NetBackup, etc.). The root user, or users associated with Active Directory, for example, are considered invalid.
Propiedades del artículo
Número del artículo: 000192491
Tipo de artículo: Solution
Última modificación: 02 ene 2026
Versión: 3
Encuentre respuestas a sus preguntas de otros usuarios de Dell
Servicios de soporte
Compruebe si el dispositivo está cubierto por los servicios de soporte.