DPM/Sharepoint 2010 Backup Metadata Enumeration Failed

This is tricky to troubleshoot as you end up waiting days for the error to crop up again on the DPM Server

run this command to force the catalog creation

Get-ProtectionGroup yourdpmservername |get-datasource |where-object {$_.type -like "*sharepoint*"} | start-createcatalog




Sources :

http://www.itwalkthru.com/2010/10/dpm-2010-and-sharepoint-2010-metadata.html

http://www.itwalkthru.com/2010/06/dpm-powershell-force-sharepoint-catalog.html