DPM Support - From the Frontlines Straight to You

The DPM Blog for DPM Administrators.

Connect-DPMServer.ps1 will not connect

Connect-DPMServer.ps1 will not connect

  • Comments 2
  • Likes

Interesting case that I just resolved.

Customer is using a third party software to perform SharePoint restores.  While trying to connect back to the DPM server from the other SharePoint application restoration server he was getting the following error:

 

 image

 

After taking network traces and DPM MPS Reports, we started doing code reviews of how the connect-dpmserver.ps1 script works.

 

When you perform  a connect-dpmserver.ps1, we initiate communication to the DPM server via RPC.  Once the RPC connection is made, we then talk to the SQL server via TCP/IP.

We use a setting from the registry to let the connecting server know what the name of the server is and the instance of SQL that we try and connect too.  In a default installation the database name is MS$DPM2007$.  The connection string should reference <servername>\\\MS$DPM2007$.  In our customers situation the connection string was localhost\\\MS$DPM2007$.

This caused the connecting server to initiate communication to the DPM server and then the DPM server told it to connect to the local host; there was no DPM database on this server because only the DPM Management Shell was installed.

After changing the connection string we saw the following:

 image

Why was it still failing?  DPM caches the information it collects from the registry to hand back to the servers that are trying to connect to it via the connect-dpmserver.ps1 script.  Not until we either restart the DPM service or reboot the server will DPM be re-populated with the correct information.

After restarting the DPM service we now see the following:

image

 

Walt Whitman

Support Escalation Engineer

Microsoft Platforms Core Team: DPM

Comments
  • connect-dpmserver is a DPM cmdlet, not a ps1 script as such.

    Cheers

    RuudB

  • This error is a default error of permission

Your comment has been posted.   Close
Thank you, your comment requires moderation so it may take a while to appear.   Close
Leave a Comment