This section explains how the Eseutil /K checksum mode works on Exchange Server 2003 databases, and covers basic operation procedures.
Exchange 2003 uses a checksum procedure, by using the /K switch, to confirm the data integrity of pages in the database.
If you actually need to get the space back on disk, then you will need to do an offline defrag.
The stores are both online at the same time, and service disruption only impacts those users whose mailbox is actually being moved (usually at most 4 at the same time); other users in the same store are unaffected.
The end result in terms of freed space is the same, but the process is much easier and almost completely avoids downtime.
Copy this folder and save it at an alternate location. Open mdbdata folder and there will be priv1and priv1files available. However, the user mailboxes will be completely empty as this is a temporary stand-in.
Once the corrupted database is repaired, it will be merged with this database using Ex Merge tool.
This is what Microsoft recommends if you really need to recover disk space in an Exchange database. Exclaimer are good but I don't know if they work with anything older than 2007. Anyway, extract it all and set a retention policy tag with a retention period of, say, 40 days. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Exchange only keeps emails for 40 days, the archive can hold all the rest. Would you like to answer one of these unanswered questions instead?I have hit an issue on a MS SBS machine where every morning the datastore for the exchange mailboxes dismounts itself.We believe the issue is that it has grown too large over time and needs cut down a bit.Exchange will never automatically release freed space in database files, but it will reuse it for new data.There are two ways to actually reclaim free space: perform an offline defrag of the database file, or move the mailboxes to another store and delete the old one.In this situation, as there is need to repair corrupt EDB file Exchange 2003 preventing downtime, the best solution is to recover the mailboxes from backed up MBDDATA using Recovery Storage Group (RSG).