Backup of existing NDMP hosts, or adding new hosts, fails in ONTAP 9.10.1 and later
Applies to
- ONTAP 9.10.1 and later
- LIF service policies
Issue
Note: NDMP protocol refers to a backup application as a Data Management Application (DMA.)
- Previously working NDMP backups fail after upgrading to ONTAP 9.10.1 and later.
- Attempts to configure new NDMP backups also fail after upgrading to ONTAP 9.10.1 and later.
- The same types of failures can also occur if configuring new NDMP backups for clusters running ONTAP 9.10.1 and later.
- The failed backups or configuration attempts are associated with connection errors between the DMA and the NDMP Server
- On the DMA side, errors like this may appear:
NDMP connection to host [NetApp hostname] failed.
- The connection errors can be associated with NDMP control connection LIFs, as well as NDMP data connection LIFs
- The control connection is the initial connection from the DMA to the NDMP Server.
- The data connection is the connection from the NDMP Server back to the DMA, used to send the NDMP data stream over the network.
- NDMP configuration, including authentication, is configured and appears correct
- The NDMP hostname or IP address in the DMA configuration corresponds to either a data LIF, or a LIF using a custom service policy
- For data LIFs, failed connections from the DMA are not logged to the ndmpd log
- For non-management LIFs using a custom service policy, the NDMP debug log may contain a single error corresponding to the failed DMA connection attempts:
ERROR: LIF Role [0] detected is invalid