We were running the RC version of 2010. All backups were successful. Upgraded to the full release and now SQL backups are failing on two servers, where they had been successful before. Not receiving any errors in the event log. Closes thing I could find was VSS timeout information alerts. One fo the backups had been going for over 24 hours, so it is as if it loses connection to VSS or something weird happens. Running a vssadmin list writes shows all writers with no errors on the system. SQL 2005 is patched with SP3.
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