Which method can easily scale to tens of firewalls to increase uptime?

The method that can easily scale to tens of firewalls to increase uptime is resiliency. Resiliency focuses on creating a robust, flexible, and redundant system that allows services to continue running even in the face of failures or disruptions. It is designed to handle scaling effectively, as it incorporates various technologies and practices such as load balancing, failover strategies, and distributed architectures.

In contrast, traditional high availability (HA) typically involves a more rigid setup, often needing manual configuration or specific hardware arrangements to provide redundancy. While effective, traditional HA solutions can become complex and unwieldy when trying to manage a large number of firewalls, making it less practical for environments where scaling is essential.

Resiliency, on the other hand, is more adaptable and can leverage cloud resources, virtualized environments, and automated deployment methods, leading to enhanced uptime without the limitations associated with traditional HA. This makes it a preferred approach when dealing with a significant number of firewalls, ensuring that they work together harmoniously to maintain high availability and performance.