Run your daily backups to provide a safety net should things go wrong.
Confirm that the TFS2008 databases were backed up last night.
a. TfsActivityLogging
b. TfsBuild
c. TfsIntegration
d. TfsVersionControl
e. TfsWarehouse
f. TfsWorkItemTracking
g. TfsWorkItemTrackingAttachments
Figure: If you can’t see the physical .bak file for all these, chase up your DBA
Create a backup of the TFS2008 databases by running your Daily Backup maintenance plan on TFS2008
Figure: Before starting, kick off the daily backups