Summary
This chapter looked at high availability, using either load balancing or clustering. You learned that platform diversity and the integration of multi-cloud systems add layers of redundancy to mitigate the risk of single points of failure and that the continuity of operations is safeguarded through meticulous capacity planning, which addresses both human resources and technological infrastructure. We also covered various rigorous testing methodologies, such as tabletop exercises, failover simulations, and parallel processing, all of which are employed to fine-tune the system’s resilience.
Later sections discussed the strategic management of backups, including considerations of on-site/off-site storage, encryption, snapshots, replication, and journaling to bolster organizations’ data recovery capabilities. We also explored the elements of a robust power infrastructure featuring generators and UPSs to provide a solid foundation for sustained operations.
The...