What are required to be the same for two FortiGate units to form an HA cluster? (Choose two)

The correct answer is A. Firmware. B. Model. For two FortiGate units to successfully form a High Availability (HA) cluster, they must meet specific hardware and software compatibility requirements.

Submitted by mateo_ar· Apr 18, 2026FortiGate Deployment and System Configuration

Question

Options

AFirmware.
BModel.
CHostname.
DSystem time zone.

How the community answered

(40 responses)

A
88% (35)
C
5% (2)
D
8% (3)

Why each option

For two FortiGate units to successfully form a High Availability (HA) cluster, they must meet specific hardware and software compatibility requirements.

AFirmware.Correct

All FortiGate units within an HA cluster must run the exact same FortiOS firmware version to ensure proper synchronization and operation.

BModel.Correct

FortiGate devices forming an HA cluster must be the same hardware model (or a compatible series) to have identical port configurations and processing capabilities.

CHostname.

The hostname is a device-specific identifier and does not need to be the same for HA cluster formation.

DSystem time zone.

While it's good practice for consistency, having the same system time zone is not a mandatory technical requirement for FortiGate HA clustering.

Concept tested: FortiGate HA cluster prerequisites

Source: https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/33946/ha-cluster-requirements

Topics

#FortiGate HA#High Availability#Clustering#System Configuration

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