Migrating data from the existing entry-level and mid-level models to DD6400 is achieved by collection replication. Some requirements:
(These same requirements apply when performing a migration from a DD6400 to a DD6900 or to a DD9400.)
Because DD2200 and DD2500 do not support DDOS 7.7, one can use Mtree replication to perform the migration from those appliances.
Note: A controller upgrade is not supported in DD6400.