This patch should only be applied if your system is affected by the following defect/condition:
Support DB2 LUW 10.5.0.3a over Linux x64.
Support DB2 220.127.116.11 fixpack 9a on AIX 6.1
Support DB2 10.5 fixpack 4 on AIX
Please review the included release notes as well as solution SOL135576 in our Knowledge Base