Need to load millions\lacks of records in Maximo

Need to load millions\lacks of records in Maximo 
 

Their might be chance you need to load millions of records in existing maximo records but since ur system might have already so many records uploading using dataloader or any csv will be difficult another option you can use  iface tables in another schema that in Maximo and then configure baches in Maximo.
You can monitor these batches.