Hi Rosalyn, 

Welcome to Box Community and glad to assist! 

If you're asking regarding Trash Settings for Your Enterprise, we have a detailed information on how you can customize your enterprise's trash settings to best fit your company's requirements on this community article.
 
In case you are asking about how do we back up data in Box, you can go to this link below for information and documentation.

• https://www.box.com/trust

Hope it helps!