The existing database of MS Exchange Server we see is actually made up of three files: EDB, STM and registration. From a storage standpoint, Exchange Server consists two main components: the Mailbox store and public folder store. Mailbox Store is what contains all the users and mailboxes from the system and consists of two files: Priv.edb and Priv.stm, while public folder store contains public folders and comprises Pub.stm Pub.edb and files. Files log keeps track of every message that is stored in a storage group and used as EDB recovery tool database when it crashed.

Exchange Server database is a collection of few pages, in the first two pages define the header of the database and the logical page numbering starts from the third page, third page is the first logical page number. These pages are the B + tree (balanced tree) training. Each tree is a set of linked pages. These trees combine to make database tables, where tables are arranged to form a mailbox e-mail mailbox and each folder is a single table.

The trees in the database table are assigned special functions, such as the lifetime value is intended that the data they contain do not get fit in a page of data. There are also some tables, as tables and appended messages, mailboxes that are not specific but are shared.

Database Corruption

The database of Exchange Server may be subject to corruption and therefore need to EDB Repair. In general classification, the corruption of the Exchange databases may be of two types: physical and logical. The corruption of physical database means trouble hardware, whereas the results of the corruption of database logic to database level.

The corruption index entries, accounts incorrect reference and levels of access control and other cases are classified in the corruption of logical databases that make the inaccessibility of the database. In the corruption case of physical databases, it becomes inaccessible because the damaged hard disk can not be accessible.

EDB Repair

EDB tools repair are available that can correct the database corruption, logically, as well as physically. EDB software recovery offered to explore and extract user mailboxes for use while on the correction of physical corruption problems database, hard drive repair is EDB Recovery experts corrupted database and then recover.

Stellar Information Systems Limited offers a perfect and solid EDB solutions of repair. Stellar Phoenix Mailbox Exchange examines the recovery and repair of the Exchange database corrupt through powerful scanning algorithms offering secure a restoration of the recovered mailboxes in PST file format. EDB Recovery This software is compatible with Exchange Server 5.5, 2000 and 2003. Stellar also offers the best in the industry EDB recovery services through Class 100 clean rooms and experts.

About the Author:

Simpson is a freelancer for Stellar which offers file recovery software and file recovery programs for different OS and file system.

Article Source: ArticlesBase.com – About Exchange Database

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