I was moving virtual desktop data last week between a four node NetApp Cluster and a two node cluster. NDMP copy becomes handy for moving data. NDMP copy is different from cluster mode to 7 mode so I want to share the steps with you here.
- Verify that the NDMP user has a password.
In Data ONTAP 8.1 Cluster-Mode, NDMP uses a special account called ‘root’ for authentication. This ‘root’ account is not the same as the root account in the systemshell or the nodeshell.
Note: There is no ‘root’ account on the clustershell.
The ‘root’ user ID can use plain-text or MD5 passwords.
Run the following command to change the password for the ‘root’ user ID:
cluster::> ndmp modify –node * -user-id root
Please enter password:
X entries were modified.
Passwords can be modified on a per node basis also. However, all nodes can only use the ‘root’ user ID for NDMP authentication.
2. Perform the following steps to re-enable ndmpcopy:
1)Log in to the cluster and enter the node shell:
2)cluster::> node run local
4)Re-enable ndmpcopy: nodeshell> options nodescope.reenabledcmds ndmpcopy
3. Finally perform the ndmpcopy command:
1)ndmpcopy -sa <username:password> -da <username:password><source_nodemgmtIP:/vservername/vol_name> <dest_nodemgmtIP:/vservername/vol_name>
My example is:
ccr-cmode-1-01*> ndmpcopy -sa root:netapp -da root:netapp 10.63.172.203:/vs0/Xen 10.63.172.147:/cloudstack/xen
Good stuff, but how did you figure out? I’ve been reading the docs, but didn’t really find this anywhere…
I read NetApp KB articles.