I have a production critical database which is in Simple Recover Model Currently. We take a Full Backup Every night at 2:30AM. Now I have to change the recovery model back to full. I have to design the backup and restore strategy to include the Differential and Transaction log backups. My manager wants a full backup every night, diff backup every 6 hours and tlog backups every 15 min. So what are steps should i take to achieve the above scenarios. Please help, any suggestions will be greatly appreciated.