/var/opt/omni directory utization increasing suddenly

Dear Team,

I have HPDP 9.07 version installed on HP UX 11.31.

I am facing an issue where size of my /var/opt/omni directory is increasing abrubtly.

Please find the contents below and let me know how i can reduce the size of the partition.

root@sapbck1 [/var/opt/omni/server]
# du -sk *
85584 AppServer
11456969 db40
7092723 db80
0 export
279982 exported
0 import
33975 log
6 sessions

root@sapbck1 [/var/opt/omni/server]
# bdf .
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvomnidb 24117248 19482695 4345002 82% /var/opt/omni

Regards,

RKJ