When attempting to do a backup to an Azure blob storage, a backup trigger either from SDDC or NSX-T will Fail with a similar error
Log's
syslog
2024-09-25T17:24:44.275Z NSX 77139 SYSTEM [nsx@6876 audit="true" comp="nsx-manager" level="INFO" subcomp="manager"] UserName:'....................' ModuleName:'backup-restore' Operation:'PUT@/api/v1/cluster/backups/config' Operation status: 'failure' Error: Authentication failed on fileserver
NSXapi.log
2024-09-25T17:24:44.274Z ERROR http-nio-127.0.0.1-7440-exec-1 NapiBackupGenerationServiceImpl 77139 SYSTEM [nsx@6876 comp="nsx-manager" errorCode="MP29256" level="ERROR" reqId="................................" subcomp="manager" username="..........."]
org.springframework.web.client.HttpClientErrorException$Unauthorized: 401 Unauthorized: [no body]
NSX-t
SDDC
Don't have enough permission from the Azure Blob Storage to be able to create the backups
Login into the Azure blob and look at the permission under Edit local user and confirm that we have all the permission selected here is a sample on how it should looked: