The Change Window
Learn how a manual database failover in an airline's system was managed using Veritas Cluster Server, highlighting the importance of the change window and its impact on system stability and uptime. Understand the procedures and challenges involved in migrating active databases without downtime, preparing you to handle similar operational scenarios in distributed systems.
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As was the case with most big clients, a local team of engineers dedicated to the account operated the airline’s infrastructure. In fact, that team had been doing most of the work for more than three years when this happened.
Start of the problem
On the night the problem started, the local engineers had executed a manual database failover from CF database 1 to CF database 2 (see diagram below). ...