Microsoft Exchange Server user transaction-based and fault-tolerant database for storing e-mails and directory information before it is applied to the database. When a power failure or other abnormal server failure occurs, the Exchange Server uses transaction logs to reconstruct the data that is already taken by the Exchange Server, but not yet written database. But in some situations, the database is not very critical and can not be solved in normal ways. At this point, your valuable data inaccessible and data loss situations that can lead to Repair Exchange. Exchange Server database (EDB) The EDB file Parts of server components is created, based on standard database technology. Entire banking system in an embedded database engine, the structure of the disk of the Exchange Server and organizes memory. Key components of edb files are accessible as follows: a) Store Information: This is the main component of Exchange Server. It has two separate database: to store private information and public information store. It works with MAPI (Messaging Application Programming Interface) and database engine to ensure that all transactions are stored on the server hard disk. b) JET Database Engine: Exchange databases are based on JET format that uses log files to maintain and track information. It is a 32-bit multi-threaded database engine that the performance and speed with other powerful features to improve transaction-based processing combines skills. Exchange Server database corruption like other database, EDB may also experience corruption at a certain point, the system must try to get back to consistent state. The corruption could occur due to virus infection, improper system shutdown, application malfunction, user error and missing database objects. There are two main types of database corruption, Exchange Repairs needed to be resolved: (i) Logical Corruption: It is caused by damaged or missing database objects, such as database engine failures and Information Store corruption. This type of corruption can also occur at the application level in folders, mailboxes, messages and attachments. (ii) Physical Corruption: This type of corruption occurs when entire database is corrupted on the hard disk. It is very easy to identify. In order to overcome the corruption cases, Exchange Server provides two-eseutil repair tools and Isinteg. These tools help you to perform Exchange Server Recovery repair and restore corrupt database in some situations, but these programs will not work in cases of serious injury database. In such circumstances, Exchange Server Repair requests are for helping to thoroughly scan the damaged database and extract all of the mailboxes and data. These devices are simple and safe to use. Stellar Phoenix Mailbox Exchange Recovery is the most advanced and powerful application for repairing Exchange absolute recovery times of inaccessible data from your EDB file to secure Exchange Server 2003, 2000 and 5. 5. This software is designed for Microsoft Windows 2003, XP and 2000.