Source:  eDirectory or NDS Client

Explanation:  The name passed in to the ds.nlm exceeded 256 characters.

Possible Cause:  An attempt was made to perform a move subtree partition operation that would result in a fully qualified distinguished name greater than 256 characters for the partition root object.

Action:  Before doing a move subtree partition operation, make sure that the fully qualified distinguished name of the partition root object will be 256 characters or less.