How to remove a chassis from a stacked setup

If you have an established multi-chassis FortiAnalyzer-BigData Security Event Manager and need to scale down, you can remove any extender chassis you have added to the main chassis.

Removing an extender chassis will hard reset BOTH the extender and the main chassis. All user data and configurations will be lost. The entire process takes approximately an hour.

Remove an extender chassis

Perform this process in a location where you can immediately disconnect the Internal Switch Modules at step 3. This step must be done in a timely manner.

To remove an extender chassis:

1. Access the Security Event Manager Controller of the main chassis (see To connect to the Security Event Manager Controller:) and run the following command to stop the DHCP service.

   systemctl stop dhcpd

2. Run the following command to reset all all hosts connected to the current controller:

   fazbdctl unstack-chassis

   Wait for the message “[Info] factory reset members done, and [info] factory reset the controller" in the command output before proceeding to the next step without any delay.

3. Disconnect the connection between the Internal Switch Modules (Switch Module #1) between the main and extender chassis.
4. Reset and reboot the Bootloader.
   1. Access the bootloader of the Security Event Manager Controller of the main chassis. See, Bootloader.
   2. Enter option 7, Reset OS and Clear User Data, to hard reset the host.
   3. Wait until the Bootloader finishes rebooting.
5. Access the bootloader of Blade A2 on extender chassis. See Bootloader.
6. Use the Set Role command to set the role to controller.
7. Access the Security Event Manager Controller of the main chassis and initialize the cluster:

   fazbdctl init cluster

8. Access the Security Event Manager Controller of the extender chassis and initialize the cluster:

   fazbdctl init cluster