My final question is if a corruption occurs in a database will it be replicated to the other databases? I suspect not if all is being replicated is the log files but it would be nice to get a definitive answer so I know what I am potentially letting myself in for with Exchange 2010.
#DEFRAG EXCHANGE 2010 DATABASE OFFLINE#
My second question is are offline defrags still necessary or is there now some magic tool that does the equivalent without taking the database offline to recover precious disk space? White space within the EDB file is the first space utilized for. This online defrags primarily organizes the database in a way that compacts the live data to the 'front' of the database so that all white space is within one contained area of the file. My first question is if I need to run an offline defrag on a database that is part of a database availability group will it take all databases offline and replicate the changes once the defrag has completed or will I be able to run the defrag on copy at a time? Exchange performs online defragmentation of the database on its own without admin interaction. Given that Single Instance Storage is growing and the use of Archiving in the same database will make databases huge running an offline defrag (or indeed any ESEUTIL repairs) are going to have a significant impact on uptime. Exchange 2010 supports moving mailboxes online - so there is no downtime, you can do the moves during the middle of the workday. Mount the Database again on to the server. Now run the Eseutil utility to defrag the mailbox.
![defrag exchange 2010 database defrag exchange 2010 database](https://blog.rmilne.ca/wp-content/uploads/2013/08/8321.image_thumb11_6AEEA976.png)
Dismount the mailbox database use the command. The better, fully supported, no downtime method is to create a new mailbox database, and move all the mailboxes to the new database. Step 3: - Use Eseutil to Defrag Exchange 2010 Mailbox Database Open the Exchange Management Shell and locate the folder that contained by the database like given bellow. Having recently run an offline defrag of our store and finding it took 7 hours for a 50GB database on our Exchange 2003 server I was wondering how this has changed in Exchange 2010. With exchange 2010 and up, you don't need to use offline defrag in most circumstances.