Fortinet FortiWAN, Руководство пользователя

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Planning the network topology How to set up your FortiWAN
High Availability (HA) Scenarios
Firmware Update Procedure in HA Deployment
Firmware update on both master and slave units under HA deployment can be completed at once (one firmware
update instruction). The firmware update procedure in HA deployment is similar to the non-HA (single unit) procedure:
1. Log onto the master unit as Administrator, go to [System]→[Summary], double check and make sure the peer
device is under normal condition (See " Summary ").
2. Execute the firmware update with uploading the firmware file (See " Administrator
"). Please wait as this may take a
while.
The master unit starts with verifying the uploaded firmware file for master and slave units (system can not be uploaded
with a firmware file that is earlier than the version system is running on). The slave unit then receives a duplicate of
firmware file from master unit, and starts to update firmware. The master unit holds on updating itself until the update
on slave unit completes. Once slave completes its update, the master unit starts updating itself then, while slave gets
into reboot procedure. The whole update procedure will complete after the two units recover from system reboot. The
asynchronous update procedure on the two units causes the peer unit recovering from reboot earlier than local unit,
and the master-slave relationship will switch therefore.
The whole firmware update will be aborted if any abnormality happens during updating on slave. The master unit will
not get updating itself without updating successfully on slave unit. Abnormal termination of firmware update does not
trigger system reboot, and therefore the master-slave relationship will not switch.
During the firmware update, the heartbeat mechanism over master and slave units stops temporarily until the firmware
update succeeds or is terminated by abnormality.
After the firmware update is complete, the firmware version number displayed in fields [System Information] and [Peer
Information] on Web UI page [System > Summary] should be updated and identical. The information displayed in field
[Peer Information] gives reference to judge the update.
FortiWAN Handbook
Fortinet Technologies Inc. 29