system file-system
Use these commands to run a file system check on the log and mail disk partitions, show errors such as corrupted files, fix minor errors, and if required rebuild the super blocks or file system.
Syntax
diagnose system file-system fscheck {logdisk | maildisk}
diagnose system file-system fserrorlist {logdisk | maildisk}
diagnose system file-system fsreport {logdisk | maildisk}
diagnose system file-system fsfix {logdisk | maildisk}
diagnose system file-system fsrebuildsb {logdisk | maildisk}
diagnose system file-system fsrebuild {logdisk | maildisk}
Example
FortiMail # diagnose system file-sytem fscheck logdisk
System Time: 2025-05-28 15:37:09 EDT (Uptime: 5d 1h 39m)
This operation will temporarily stop mail handling and check the log disk!
Are you sure you want to continue? (y/n)y
System is checking log disk ...
...
FortiMail # diagnose system file-sytem fserrorlist logdisk
System Time: 2025-05-28 15:39:31 EDT (Uptime: 5d 1h 41m)
No file system error detected