Changing passwords of local DPM accounts

During the installation of Microsoft DPM 2010 you will be asked to define a password for two local user accounts. The accounts are named MICROSOFT$DPM$Acct and DPMR$<machine name>.

The account MICROSOFT$DPM$Acct is used to start the services SQL Server (MSDPM2010) and SQL Server Agent (MSDPM2010) of the local SQL 2008 Express instance. The account DPMR$<machine name> is used for the Reporting services.

This post describes the neccessary steps to change the passwords of both accounts.

1. Stop service SQL Server (MSDPM2010). Services DPM and SQL Server Agent (MSDPM2010) depend on SQL Server (MSDPM2010) and will be stopped too.
2. Change passwords of MICROSOFT$DPM$Acct and DPMR$<machine name>.
3. Set password in Log on Credentials of service SQL Server (MSDPM2010) and SQL Server Agent (MSDPM2010).
4. Start service SQL Server (MSDPM2010), SQL Server Agent (MSDPM2010) and DPM.
5. Start Reporting Services Configuration Manager located under All Programs > Microsoft SQL Server 2008 > Configuration Tools.
6. Connect to the report server instance MSDPM2010 on <machine name>.
7. Navigate to Report Manager URL and click on the given link (default: http://<machine name>:80/Reports_MSDPM2010)
8. Click on DPMReports.
9. Click on DPMReporterDataSource.
10. Change credentials and click on Apply.

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