Informix - onautovop question

OS: Sun Solaris 2.6 Machine: Sparc 2 Informix version: 7.22UC2 RAM: 128MB Drive space: LOTS I'm currently experiencing problems using Informix's "onautovop" utility to run onarchive sessions in unattended mode. I have a vset defined (test_vset) with a "DISK_VOP" device type, pointing to a valid system directory with PLENTY of hard disk space. I have a volume in this vset, as well as a dbspaceset defined. I can execute ARCHIVE and BACKUP commands fine manually, using the onarchive command line interface. However, when I define the requests to repeat and run "start_autovop" in a cron, the requests do not get executed, and according to the cron log file, everything exits cleanly. The "sample" cron file looks like this 30 14 * * 1 /opt/informix/bin/start_autovop 1 1>/dev/null 2>/dev/null Does anybody have any ideas why onautovop doesn't want to cooperate? Thanks!