Solution : https://service.sap.com/sap/support/notes/96858 (SAP Service marketplace login required)
Key words : 
setting options read oss note 29324, additional key words sapdata_home, symptom set environment variable, single    instance installation sapsid, sapdba -check/analyze    logs, database instance system id, sap system id, /oracle/<dbsid>      note, prerequisites sap release 4, remote database system
Related Notes : 
       
| 143288 | SAPDBA: Super collective note |