Problem with restoring with ontape -r

Situation: In order to install a testsystem a backup has been created of our Informix database with ontape -s -L 0. The tape to which the data is backuped has a potential of about 130 GB but the TAPESIZE was limited to 80 GB. Our total database however is about 180 GB and the backup, as result, took 3 tapes. So far so good. Now we want to restore these tapes to our test system. I used ontape -r which seemed to work fine. With onstat -Dr I could monitor the progress of the restore. Problem: The 80 GB of data of the first tape has been restored. The "onstat -Dr" command showes no further action from the restore. However the system doesn't ask for tape nr. 2. I don't know wether or not the process is still active or sort of sleeping. The online.log last entry is 20 hours ago. What to do? Should I just insert tape nr. 2 and hope the process continues ? Thanks in advance for your help. Danny