Switching Over to a Warm Standby (Subscriber)
If done properly, failing over to a warm standby (subscriber) in a replication configuration can be done in less than two minutes if the failure is detected early. There will be a few main areas to consider:
Knowing what has failed. Has the publisher failed only? Have the most recent transactions been replicated to the subscriber?
Define the process that must be run to make the subscriber the primary server.
Define the process that must be followed to point the client to the new primary server (the standby).
Define the process to switch this all back to the way it was before the failure occurred (if desired).
Just as a precaution, you should always keep all the SQL Server instances that are a part of ...