Swap space utilization is increasing after Oracle11gr2 upgrade

Hi
we are using oracle11.5.10.2 on AIX 5.3 and recently upgraded database from oracle9.2.0.8 to Oracle 11gr2 (11.2.0.2)
After upgrade Database i have observed gradually swap space is increasing and it is reaching upto 100%
what could be the reason ?
Please find below message from OEM also
Host operating system was experiencing significant paging but no particular root cause could be detected. Investigate processes that do not belong to this instance running on the host that are consuming significant amount of virtual memory. Also consider adding more physical memory to the host
Thanks
With Regards
A-Z
Edited by: user3308982 on Jul 25, 2011 10:57 AM

Hi
Total RAM is 16 GB and Swap space is 8GB
Disk Busy% KBPS TPS KB-Read KB-Writ PAGING MEMORY
hdisk3 1.0 144.0 33.0 2.0 142.0 Faults 95 Real,MB 16384
hdisk2 0.0 14.0 3.0 0.0 14.0 Steals 0 % Comp 67
hdisk1 0.0 0.0 0.0 0.0 0.0 PgspIn 0 % Noncomp 32
hdisk0 0.0 0.0 0.0 0.0 0.0 PgspOut 0 % Client 32
cd0 0.0 0.0 0.0 0.0 0.0 PageIn 0
hdisk4 0.0 0.0 0.0 0.0 0.0 PageOut 7 PAGING SPACE
hdisk8 0.0 0.0 0.0 0.0 0.0 Sios 8 Size,MB 8704
% Used 76
Name PID CPU% PgSp Owner NFS (calls/sec) % Free 24
oracle 889142 25.0 21.6 oratst ServerV2 0
syncd 45402 0.7 0.5 root ClientV2 0 Press:
oracle 164312 0.3 16.5 oratst ServerV3 0 "h" for help
oracle 630880 0.2 14.8 oratst ClientV3 0 "q" to quit
topas 266560 0.2 2.5 root
oracle 389258 0.1 18.2 oratst
oracle 164036 0.1 10.2 oratst
gil 20768 0.0 0.1 root
oracle 344258 0.0 17.3 oratst
oracle 684032 0.0 15.5 oratst
Exiting
Edited by: user3308982 on Jul 25, 2011 11:13 AM

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