Exchange Server 2007 File Structure

Exchange Database Files:-

·  E00.chk checkpoint file marks up to where database has been committed to the database files

·  E00.log the current log file with transactions waiting to be processed.

·  E00res00001.jrs

·  E00res00002.jrs

·  E00000000A.log

·  Mailbox Database.edb. EDB file is the one which stores all mailbox database information. The size of this file increases significantly since it stores rich text and attachement. .STM files are no longer in use.

·  tmp.edb

·  Enn000000000x.log logs that have already been processed (Max log file size is 1 MB, also maximum number of log files has been raised from 1 million to 2 billion)

The other files are in the locations C:\Program Files\Microsoft\Exchange Server\TransportRoles\data\Queue are specified below:

· Trn.chk - The checkpoint file.

· Trn.log - The current transaction log file.

· Trntmp.log - The next provisioned transaction log file that is created in advance.

· Trnnnn.log - Other transaction log files that are created when Trn.log reaches its maximum size.

· Trnres00001.jrs - The Reserve log file.

· Trnres00002.jrs - The Second Reserve log file.

· Temp.edb Temp DB used to verify database schema on start-up.