Here’s a new Knowledge Base article we published today. This one tells you how to fix and issue were you get error 3055 trying to create a protection group for a SQL database in DPM 2007 or DPM 2010:
While trying to create a protection group for a SQL database in System Center Data Protection Manager 2007 or System Center Data Protection Manager 2010, you may receive the following error: DPM is unable to enumerate SqlServerWriter on computer ServerHostName.FQDN.COM (ID: 3055)
This problem occurs when the following conditions are true:
- The SQL server is in an untrusted domain or a workgroup.
- The SQL database is configured with mirroring.
- You are trying to protect a mirrored SQL database on the principle server.
Protection of a mirrored SQL database in untrusted domains or workgroups, and even protection of a mirrored SQL database on a Principle server, is not supported by System Center Data Protection Manager 2007 or System Center Data Protection Manager 2010. For more supportability information about SQL protection please see the following:
Managing Protected Computers in Workgroups and Untrusted Domains : http://technet.microsoft.com/en-us/library/ff634170.aspx
For the most current version of this article please see the following:
2691955 : Unable to protect SQL DB from System Center Data Protection Manager 2010
J.C. Hornbeck | System Center & Security Knowledge Engineer
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