Solution : https://service.sap.com/sap/support/notes/86733 (SAP Service marketplace login required)
Key words : 
3 installation/upgrade additional key words aix 4, install aix apar ix80472, 3all customers running, fully documented documented, specific database requirements, symptom aix 4, 3 64 bit aix 4, fully documented, apar number, specific database
Related Notes : 
       
| 101182 | |
| 73694 | Upgrade: INFORMIX Online Dynamic Server |