If you see errors like below
- Write-error on swap-device
- /bin/cat: /tmp/heimdall.pid: No such file or directory
- /bin/chown: cannot access ‘/opt/cisco/csp/applications/configs/max_restart’: Input/output error
- /opt/ssp-mgmt-scripts/ssp_system_mgmt_startup.sh /opt/cisco/platform/logs/ssp-pm.log: Read-only file system
- /sbin/fxos_log_shutdown: /opt/cisco/platform/logs/ssp-shutdown.log: Read-only file system
- login fails after system restore with a factory-reset or reset fails completely
then your FTD SSD file system is corrupted and TAC assistance will be required.
Verify FTD physical location/placement. Make sure there are no any kind of magentic or electrical interferenceand and nothing is placed on top of FTD.