After you have enabled a litigation hold in exchange 2010 - on entire database -
Once you disable the litigation hold:
1 - How does exchange start to purge itself of all of the data
2 - How can you force exchange to purge it immediately?
3 - How do you know when all of the data held from the litigation hold has been purged from exchange?
We have a few 500GB DB's that have been under litigation hold for two years - there are 8GB to 12GB of recoverable email in the DB from each mailbox based on the hold - I am concerned that when we remove the hold 1 - performance that will impact exchange 2 - timing of the purge and 3 - tracking its status.