Following on after a disaster recovery environment ready you can then restore the mail
navigation to exchange media installation directory, run the following command: 
process is fully automated, the need to be patient
Recovery is completed, restart the computer 
databases bit nomount state.
DPM backup files using edb file restore, and ADSI path database comparison database restore, copy the path to 
see dirty shutdown state database, the database needs to be repaired using eseutil.exe 
default all logs in the log file path including other moves to another temporary folder TEMP 
for Database1 total capacity of 380GB, with more than 4 hours when repair 
Database2 total capacity of 180GB, the same time 4 hours
After the repair is complete, right into the database can be.