This sample task list covers a parallel migration with replication approach to upgrade an older system to Adaptive Server Enterprise 12.5.
The scenario for this task list is:
A major telecommunications company cannot afford system downtime for the upgrade.
In the event of failure, the system cannot be down more than 15 minutes and the company cannot afford more than 1 hour of data loss. The migration must support these contingency requirements if a production back-out is required.
This example does not repeat the preparation steps to given in the previous example. The task lists for this example include:
