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Exchange 5.5 and Drive Space

By Kuhlio ·
I am running Exchange 5.5 on Windows NT Server 4.

This is a system I inherited, and I have discovered that there is virtually no room left on the hard drive due to the MDBData file being close to 3GB. The drive is a 6GB drive, and this file resides on an extended partition. Is there anyway that I can safely decrease the size of this file and not disrupt anything? I am a newbie to Exchange and would appreciate any help you may be able to provide. Thank you in advance.

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Exchange 5.5 and Drive Space

by DKlippert In reply to Exchange 5.5 and Drive Sp ...

An offline defragmentation is the only way to reduce the size of the files.
It will require that you have free disk space equal to 110% of the current size of the database, and you have to shut down the exchange services. The tool is called "Eseutil.Exe" and runs in a command prompt.

(Type the Q number in the search box at support.microsoft.com)

How to Defragment with the Eseutil Utility (Eseutil.exe)

Q192185

Recovering Hard Drive Space from Exchange Server Databases

Q255035You should instigate a pruning program with users removing attachments from their mail and empting Deleted items, etc.

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Exchange 5.5 and Drive Space

by Kuhlio In reply to Exchange 5.5 and Drive Sp ...

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Exchange 5.5 and Drive Space

by a.grogan In reply to Exchange 5.5 and Drive Sp ...

Hi, The defragmentation mentioned in the last question is a good solution in teh interim - but as a final "fix" most Ex admins do not recommend running the Eseutils as a matter of eveyday procedure - your ultimate solution is to transfer you Exchange installation to a new server, have a look at http://www.microsoft.com/Exchange/techinfo/administration/55/BackupRestore.asp - which contains the MS White paper on how to restore an Exchange server (it can also be used to move an Exchange server to an identical installation) and it works as I have used it.

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Exchange 5.5 and Drive Space

by Kuhlio In reply to Exchange 5.5 and Drive Sp ...

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Exchange 5.5 and Drive Space

by timwalsh In reply to Exchange 5.5 and Drive Sp ...

Another option would be to install a 2nd hard drive and use the Exchange Optimizer utility to move the MDBdata folder to the new drive.
The MDBdata database is where the information stores (private - user mailboxes, contacts, etc. and public - all public folders) are housed. You may need to start limiting the size of both mailboxes and public folders if things continue to grow out of control.
What an offline defrag will accomplish is to partially free up space that may be in the database due to deleted mailboxes, deleted saved items in mailboxes, etc. However, as Answer 2 states, this is only an interim solution. Also using eseutil without thoroughly understanding what it is doing and the potential impacts can lead to the possibility of totally corrupting your Exchange install. I would suggest finding a couple good reference books for Exchange (to include the Resource Kit.
Good luck

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Exchange 5.5 and Drive Space

by Kuhlio In reply to Exchange 5.5 and Drive Sp ...

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Exchange 5.5 and Drive Space

by Kuhlio In reply to Exchange 5.5 and Drive Sp ...

Being that I am newbie to this, I received information from everyone that was beneficial to me in one way or another. Thank you all for your tips. It is appreciated.

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Exchange 5.5 and Drive Space

by Kuhlio In reply to Exchange 5.5 and Drive Sp ...

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