Backing up with On Bar

Hi folks I want to ask for configuring "on Bar" utility to backup 2 Informix database servers running on the same machine having one tape device Data from the first IDS ---> tape A Data from the second IDS ---> tape B Log from the first IDS --> tape C Log from the second IDS ---> tape C Is it possible to share the tape device to backup both IDS logs ? We have problem doing this because "on Bar" has locked the tape C while backing up Log from the first IDS and then the attempt to backup Log from the second IDS failed with Write Protect. I used the full on Bar backup . Thanx a lot for answer Rs.