6027-1324 [I] The cluster was created with the tscCmdAllowRemoteConnections configuration parameter set to `no`. If a remote cluster is established with another cluster whose release level (`minReleaseLevel`) is less than 5.1.3.0, change the value of `tscCmdAllowRemoteConnections` in this cluster to `yes`.

Explanation
Self-explanatory. 

User response
If the remote cluster's minReleaseLevel is below 5.1.3.0,
issue mmchconfig tscCmdAllowRemoteConnections=yes -i.

6027-1324 [I] The cluster was created with the tscCmdAllowRemoteConnections configuration parameter set to no. If a remote cluster is established with another cluster whose release level (minReleaseLevel) is less than 5.1.3.0, change the value of tscCmdAllowRemoteConnections in this cluster to yes.