Swapping 'ontapes' from system to system

I need to clone one Informix DB to another system. Both systems are Solaris Sparcs running Informix 7.23. I want to take a tape made with 'ontape -s -L 0' from machine 'A' and put it in machine 'B'. When I try this on machine 'B' (ontape -r) continuously prompts for: Please mount tape 1 on /dev/rmt/1 and press Return to continue.. Restore a level 0 archive (y/n) y Ready for level 0 tape the system looks at the tape but contuously repeats the same three lines as if it can not read the tape. Both tape drives and parameters are identical, and I can transfer 'tar' tapes between the two systems. I just can't swap 'ontape' archives. Can someone please shed some light on this? Thanks in advance.