“After Imaging” is the transaction logging mechanism built into the Progress database. It enables ongoing ‘backup’ of database transactions as they occur – providing the ability to move these off to a 2nd machine where they can be applied to a copy of the original database – thus providing a ‘live spare’ of the production database to be used in the event of hardware disaster on the production server. It can also be used to create a ‘read-only’ database for reporting purposes.
This presentation was given at the West Michigan Progress Users Group in October 2008.