How to Overcome Exchange Database File Size Issues?
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How to Overcome Exchange Database File Size Issues?

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Exchange database files grow in size with the addition of data. After that, mere removal of data doesn’t reduce the size of .edb file. In fact, the free space generated after the deletion of data will remain unclaimed as white space. Suppose the size of the .edb file is 20GB and if you perform any action of deleting the 10GB mailbox data or move the data to any other database, even then the actual size of .edb file remain same as 20GB. Meanwhile, 10 GB of white space gets created in the database. And this new 10GB space now is available for the addition of new data, though it is not visible.

When administrators find Exchange EDB file too big, their biggest challenge is to keep the Server in running mode all the time. Well! There are different ways you can deal with this situation.

Transfer the Mailbox Database

When the Exchange EDB file is too big, you can move the mailbox database to a different location after dismounting it. Exchange Management Console can be utilized to perform this action. To dismount the database, select the Mailbox, then right click on it and after that make the selection of the Dismount Database option. To transfer the mailbox database, follow the steps:

  1. In Exchange Management Console, under Organization Configuration, choose Mailbox.
  2. Make the required selection of the mailbox that you require to move.
  3. Right click on the chosen mailbox and after that select Move Database Path.
  4. As the Move Database Path window appears on the screen, provide the new location for data files and log files.
  5. Next, click on Move to continue with the procedure.

Finally, a message box will appear that alerts you about temporary database dismounting. Then just click on Yes. Once the operation is accomplished, a task completion information box will appear. Click on Finish to close the wizard.

Change database size specifications

When the Exchange EDB file is too big, you can change the size specifications for the database. The steps you require to follow are given below:

  1. Just go to Registry Editor, search for the given path:
  2. If “Database Size Limit in GB” DWORD is there under “Private-[database GUID]” then modify the value to GB (gigabytes). If not, create DWORD “Database Size Limit in GB”, and try to define storage limit in gigabytes.
  3. Start the Exchange Information Store again.
  4. Finally, see the current size from the Event Viewer (see the event ID 1216)’.

Some best practices for Exchange administrators

Administrators can avoid many Exchange issues, if they religiously follow a few best practices. Some of them are:

  1. Check SMTP Logs and Queues: SMTP logs and queues are very effective in solving messaging failures. By keeping a close view on SMTP logs and queues, you as administrator can successfully keep tabs on the performance of an Exchange server. As most of the emails are transported through Exchange’s SMTP queues, and just in case if any issue takes place, the messages become jammed in the queue. A simple exercise of reviewing SMTP logs frequently can help to understand many issues as they arise.
  2. Run Microsoft’s Exchange Best Practices Analyzer: As an administrator, you could also take help of the Microsoft Exchange Best Practices Analyzer application in evaluating the overall condition and configuration of Exchange servers. The application helps in getting information from Active Directory, the registry, performance monitor, and other locations. By running this tool, you can easily spot configuration matters that could badly disturb the performance of email server.
  3. Examine Antivirus and Anti-spam software: Generally, it is a very common practice to install Exchange-aware antivirus and anti-spyware programs. But, you also require to take care of various updates or even upgrades that at times necessitates initial uninstalling of the existing version. You require to review Exchange server antivirus and anti-spyware application logs regularly in order to make sure that the security software isn’t having troubles such as unable to perform scans, real-time engine disabled, etc. Any sort of negligence would risk the Exchange server’s performance.
  4. Third party tools: One can use convert EDB to PST tool for exporting Exchange EDB mailboxes to Outlook PST.

Microsoft Exchange is a very complex platform. And the size of .edb files often adds to the complexity. But with smart and diligent maintenance, administrators can resolve many of those issues.

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