What’s an EDB File?

EDB is the Database file created by Microsoft Exchange Server to store Entire mailbox items (task, contacts, emails, calendars, journal and notes). All communication held in organization with Exchange Server is stored in the Exchange database (EDB) file. All the files are stored in B-tree structure, which include a top level node and many child nodes such as Priv1.edb and Pub1.edb.

Exchange EDB File Structure

EDB file is based on a fundamental relational database structure used throughout the years in the computer industry called Balanced Tree Database structure or B-tree for short. B-Tree structure is a fundamental structural data design. The internal structure of EDB database is not very suitable for storing large attachments that client acces in continual stream. EDB is a traditional database and is organized into a set of 4-kb pages. In database structure, ESE will allow each page to store over 200 page pointers per 4KB page. Exchange Server’s ESE uses the standard B+Tree implementation. Regardless of the Server roles, database consists of number of files. The main file are as follows:

• EDB (Exchange Database File)-

The EDB file is the Exchange Server where all the data is stores. It has a size limit of 16 TB based on the ESE database design, but the actual database size limit that you enforce should be much smaller.

• (TMP.EDB)-

The temporary database is used for procedure transactions as they are being committed to the EDB file.

• (Exx.CHK)-

The E00. Chk file maintains the checkpoint for the database. This Checkpoint file keep track of the last committed transaction log file.

EDB File Type:

Priv1.edb file preserves only private data of user mailbox

Pub.edb file contain public or share folder data of user mailboxes Microsoft Compound File Binary

.stm files were created in Exchange Server and previous version to save email attachments and no more available in earlier editions of MS Exchange Server

Full form of EDB File

EDB is acronym for Exchange Database. It stores rich text data (MAPI, SMTP, & HTTPS messages) of MS Exchange in B-Tree structure.

EDB File Location

• Location of EDB file in Exchange Server 2000



• Location of EDB file in Exchange Server 2003



• Location of EDB file in Exchange Server 2007



• Location of EDB file in Exchange Server 2010



• Location of EDB file in Exchange Server 2013



• Location of EDB file in Exchange Server 2016

Application that Extract EDB File

Microsoft Exchange Server

Exchange EDB viewer

Reason Behind Corruption of EDB File

1. Software and hardware malfunctioning
2. Exchange Server crash
3. EDB .log file remove
4. Power outage
5. Power failure
6. Trojan infection
7. Virus Attack
8. Due to mailbox deletion
9. Duplicate key error
10. Accidental deletion of user’s mailbox
11. Errors due to file transmit

Comparison Between ESEDB & EDB:

ESEDB is particularly a core of Microsoft Exchange Server and Active Directory. ESE purpose is to permit applications to save and recover data via indexed and sequential access. ESEDB form for “Extensible Storage Engine (ESE) Database”. ESEDB could be a info file created by Exchange Server, which is used to store full information like mail messages, attachments. An ESEDB file is created of an information structure referred to as B-tree that is a data structure additional divided into pages.

ESEDB Supported Application:

1. Window Search
2. Window Mail
3. Exchange Server
4. Active Directory etc

If we talk about EDB, It is a Exchange database file extension. It is fundamentally associated with Microsoft Exchange Server. EDB extension files of Exchange assistant go about as a pointer to Outlook profiles (OST, Offline Storage Tables) integrate with Exchange Server as user mailboxes.

Extract Deleted EDB Mailboxes

Sometimes, corrupted and deleted EDB database consist crucial data which is most important for users but they do not have any option to extract deleted EDB mailbox. Hence, it creates issue to users. So, to prevent from data loss and various threats like corruption, server crash, hard & software failure it is important to backup or extract the Exchange mailbox data for future use. In case, if any disaster happen than user easily access or retrieve the Exchange mailbox data from Outlook PST file.

In order to get rid of all these issue, users can use the SysTools Exchange Export Tool which easily export EDB mailboxes from Live Exchange Server 2016 / 2013 / 2010 / 2007 / 2003 to the PST file format in a simplified manner. This automated utility is capable to export various mailboxes such as: enabled, disabled, disconnected, journal, hosted, exclude dumpster, corrupt to the Outlook Data File in a hassle freeway without any hindrance.

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Conclusion

The article has been focused to discuss the EDB file and various kinds of error that happened in EDB file related things. An automated tool has been discussed, which provides solution to extract or export Exchange Server mailboxes and data items (mails, notes, tasks, calendars, contacts, journals) directly to the Outlook PST file format in a simplified way without any hassle.