Hi Ravi,
Please use below steps and let me know if you need any more information.
1. Install Target system - SAP ERP 6.0 EHP6 with ASE version 15.7.101(Make sure have the similar file systems with more size than source system)
2. Take the backup from Source and move on to the Target system.
3. Restore Database using below command:
load database TSID from "/backup/SID_11042015.dmp"
4. Execute below command as part of the post steps
online database TSID
5. Proceed similar post steps which followed as part of the system copy
Regards,
Karthik