Technical Tip: 'File System Check Recommended!' Monitoring

[Gaetan_]

Description	This article describes how to monitor FortiGate's need for a system file check.
Scope	When a FortiGate with a hard disk is not gracefully shutdown/rebooted (power outage for example), a message stating 'File System Check Recommended!' will appear when connecting to CLI or GUI. It can be useful to monitor this message for multiple reasons. From CLI: From GUI:
Solution	This can be done using the following methods: FortiGate CLI output of command 'fnsysctl ls -l /etc/reboot_safe.chk'. If the file exists then a file system check is recommended. FortiGate API call 'https://<YOUR-FORTGATE-ADDRESS>/api/v2/monitor/web-ui/state/?access_token=<YOUR-API-TOKEN>'. Check for 'need_fs_check' field, values can be 'true' (File System Check Recommended) or 'false' (No File System Check Recommended). FortiManager CLI output of command 'diag fwmanager show-dev-disk-check-status <device_name/id>'.