Hi
1. Are you going to do QA refresh from PRD system? if it yes, how you are start the backup in PRD system using Sql tool , in the same way you have to select the restore option in QAS system.
2. Start the SAP Homogeneous system copy method. Kindly refer the System copy guide from SAP Service Market Place http://service.sap.com/guidefinder select the OS /DB & SAP Version
BR
SS.