Why do I see the error noSmbVerNegotiated in the log?
- ONTAP 9
- CIFS / SMB
- SMB1 disabled on the storage side
- SMB1 has been disabled on the storage controller, the Windows client attempts SMB1 only and as it's disabled it fails as expected.
5/21/2021 02:11:30 CHBARNASA90-N1 ERROR Nblade.noSmbVerNegotiated: For Vserver "DATA-SVM", Data ONTAP(R) could not negotiate with the client "10.0.0.12" because it does not support any of the SMB protocol versions that the client sent in the list "<NT LM 0.12;>".
- After the negotiation failure, the client attempts again but this time with SMB1/SMB2/SMB3
This appears to be incorrect client behaviour as it attempts SMB1 only, and does not present all 3 SMB dialects simultaneously, even though the client does support SMB1/SMB2/SMB3