SonicOS 7.0 High Availability Administration Guide
Table of Contents
About High Availability
High Availability is designed to alleviate or eliminate:
- System downtime
- Single points of failure
- Increased system load
High Availability (HA) is a redundancy design that allows two identical firewalls running SonicOS to be configured to provide a reliable, continuous connection. One firewall is configured as the Primary unit, and an identical firewall is configured as the Secondary unit. In the event of a failure on the Primary firewall, the Secondary firewall takes over to secure a reliable connection between the connected networks. Two firewalls configured in this way are known as a High Availability Pair (HA Pair).
High Availability provides a way to share SonicWall licenses between two firewalls when one is acting as a high-availability system for the other. To use this feature, you must register the firewalls on MySonicWall.com as Associated Products.
Both firewalls must be the same SonicWall model and firmware.