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Exchange 2007 Offline Defrag – Beware of the tmp file

04.02.2009 · Posted in Exchange 2007

Last weekend, we had to do an offline defrag of our exchange database. According to the event log and online defrag results, we can free up 21GB of space from the EDB files. The EDB file was originally 60GB in size.

So, we followed Microsoft Technet instructions on the offline defrag which are pretty straight forward.

There is one thing however that you need to be very careful about. Make sure you run the eseutil command from a drive that has enough space. We ran the offline defrag from the C:\ drive, and eventually if failed due to C:\ drive running out of space. We had 75MB of space left, and had to delete the tmp file from the Exchange bin folder.

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