Hi Shahis,
1) I would request you to check the below note for session cache clearance.
1806169 - Web Intelligence session cache not cleared even after re-starting the Web Intelligence Processing Server
2) Please go thruogh the below details about SYSBASE SQL BACKUP
3) Please find the below URL to replicate the platform.
http://scn.sap.com/docs/DOC-45037
Kindly let me know if you need any additional details.
Regards,
JRK PRASAD