dbimport

Hi, I have taken a dbexport using dbexport DBNAME It created a DBNAME.exp directory on the disk and inside it some .unl file and one sql script. Can anyone please tell how I can import using dbimport . I wrote dbimport DBNAME -i DBNAME.exp -f pcdip.sql . But it gives a error message "Can not write data to disk and tape at the same time I need help urgently as my Database is live. regards, Rowell Franc