Ecostruxure Process Expert [2021]: Avoid performing migration activity on running system server at site.
On the site machine , after completing database migration, customer has faced the functionality issues like PLC refine online, Deploy changes, Data backup, not able to perform in Topology level.
This knowledgebase article explains User, not to perform any migration activities on the site's running system server machine, instead restore current backup on other machine for migration activity and also explains on how to resolve the above defined issues, if migration activity has been done on running system server.
Normally before starting any migration activity , user need to ensure database backup is taken for the running system.
Here the migration activity was performed in the plant running machine. So the customer was not able to connect with plant controller and not possible to perform any online related activities. With the above scenario, customer ends up with the below error message.
To come out of the issue, only possible way is to perform full Deployment to running controller. Therefore, it is always advisable, not to perform any migration activities on the site's running system server machine, instead restore current backup on other machine for migration activity.
Issue is noted in HDCS 2018R2 version. But its applicable to all the versions of Ecostruxure Process Expert.