The built-in database is fault-tolerant and does not require administration. However, it has occurred in some rare cases that database has been corrupted. In this case, the following options are possible:

1. database deletion and subsequent loading of data from scratch

   Stop dpi
   service fastdpi stop
   Delete database
   /bin/rm /var/db/dpi/*
   Launch dpi
   service fastdpi start
   Load all settings in the database from scratch 

2. database recovery with data transfer

   Stop dpi
   service fastdpi stop
   Run script
   mdb_dump -a -f dump.txt /var/db/dpi
   /bin/rm /var/db/dpi/*
   mdb_load -f dump.txt /var/db/dpi
   Launch dpi
   service fastdpi start