Working with backup sets : Email message backup sets (Windows) : Restoring an Email message backup set (DS-MLR) : Specifying performance options
 
Specifying performance options
Special performance options in the Select restore performance options screen are intended for large backup sets in high performance environments.
For typical use, keep DS-Client’s default settings and click Next to proceed to the next screen.
More information in F1 help, see "Select Restore Performance Options (Windows DS-Client)".