Solution : https://service.sap.com/sap/support/notes/683404 (SAP Service marketplace login required)
Key words :
recovery->backup overview diagnosis->database alert protocol, terms db2udb db6 program_start_error reason, recovery->logging parameters backup, lowercase/uppercase host names, 'tcp/ip connections' subtree, error message program_start_error occurs, tcp/ip connection, start transaction sm59, 'sapxpg_dbdest_<dbserver> connection, correct gateway options
Related Notes :
| 767685 | DB6: 'PROGRAM_START_ERROR' for DB without application server |
| 677435 | Overview: external programs and external commands |