Simplified Disaster Recovery (SDR) works with Backup Exec when you run backup jobs that include all critical system component selections. For each computer that you protect with this type of backup job, Backup Exec creates a disaster recovery information file for that computer. A disaster recovery information file contains computer-specific information for the computer being backed up. Computer-specific information includes details such as hard disk layout, storage drivers, network drivers, and system version details. It also includes Backup Exec catalog details such as backup set information and recovery point details. Each disaster information recovery file uses the file name <computer_name>.DR.
If you uncheck files/folders from a critical resource, the green light for SDR goes off and no .DR file is create for the backup. Sometimes you might want to exclude files/folders which are temporary for example. Following registry change will allow excluding files from a SDR backup.
Here is an example of the registry key. If files from E: were to be excluded, create a new key called "User-Defined Exclusion Resources". Under this key create another empty key called "E:".
[HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec For Windows\Backup Exec\Engine\Simplified System Protection\User-Defined Exclusion Resources\E:]