**HELP***with tbunload

Running Informix online 5.0 HP-UX 9.0 UNIX when I do: $ tbunload -l -t /dev/rmt/0m perform2 perform2 is the database name message come: PLEASE MOUNT TAPE & PRESS RETURN TO CONTINUE... I load tape and depress RETURN utility run for 1 1/2 then I get: PLEASE LABEL THIS AS TAPE NUMBER 1 IN THE TAPE SEQUENCE. and the UNIX prompt comes back!!??!!! My database is very large, so the tbunload couldn't have unloaded all the data on one tape. WHY (and SHOULD I) doesn't 'tbunload' come back with the continuation for the next tape? Am I doing something wrong here? robin Chemical Bank NYC