Problems with DPM 2007 Backing Up Exchange Stores

Chris Fox
Chris Fox used Ask the Experts™
Hi Experts,

I am struggling with a painful problem, and I am hoping someone can help! We have a DPM server setup at a client's premises protecting 3 servers. 2 x Exchange/DC and one SQL. One of the Exchange/DC and the SQL server are working fine. We have recently replaced the other Exchange/DC that was working fine (DPM agent at least, the server was getting old) with a new system, and, try as I might, I cannot get the Exchange Stores to show up as selectable members in the DPM protection group (Edit existing Protection Group, select new server, no Exchange Stores displayed). I have installed/removed/re-installed the DPM agent on the new server after checking to make sure KB940349 was installed (VSS Writer Updates). The server is W2k3 with SP2, and Exchange 2k3 with SP2. The Exchange DLLs required on the DPM server are the correct version (same as before, and as mentioned the other Exchange/DC appears to be working OK, and the versions of Exchange are the same). I have rebooted both DPM server and Exchange/DC numerous times, and yet all I see are File shares/volumes and SQL DBs as selectable members (no Exchange Stores).

I need to get the DPM server back out of my client's office to our offsite location, and really wanted to have the Exchange server replica created before doing so to save on bandwidth, so if anyone has any tips on how to get the Exchange server to show up as selectable members, they would be greatly appreciated.


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IT Manager
So we finally found the solution to this issue. The server that we were having problems with was a new Windows SBS 2003 server and it appears that by default the Exchange VSS writer is disabled. This needs to be enabled for DPM to be able to back up exchange. To enable this is a simple registry change.

Go to "HKLM\System\CurrentControlSet\MSExchangeIS\ParametersSystem" and modify the "Disable Exchange Writer" DWord value, change it to 0 (zero).

Restart the MS Exchnage Information Store service and you will then see the Exchange stores in the DPM Manger console to add to a protection group.

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