Solution : https://service.sap.com/sap/support/notes/179675 (SAP Service marketplace login required)
Key words : 
64-bit     32-bit  upgrinf <sid> be_64 fe_3264-bit    64-bit  upgrinf <sid> be_64 fe_64be_xx - backend version, script upgrinf32-bit     32-bit  upgrinf <sid>, \usr\sap\put\tmponly decif db problems occur, execute program <rdbms-cd>\nt\patch\xb, /usr/sap/<sid>/sys/exe/runafter, /usr/ccs/bin /usr/ucb $path, $path /usr/ccs/bin /usr/ucb, note 201412end dec onlyunixin rare cases, individual upgrade phases hp 64 bit databasein, 30\ hkey_local_machine\software\informix\online\<dbserver>\change
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