what could be the reasons for df command hung ?
* NAS issue
- Try to see if your seeing any NFS stale erros with nas filesystems or NFS server may not responding
* High load
- could be due to high load , check with uptime command for high load. there could be chances of huge IO request on any filesystems , some hung commands like df ,ls,sshd ,defunct process
* I/O errors
- could be chances of IO errors with NAS and local disks.
how-to-check-which-causing-for-df command to hung ?
how-to-check-mounted-filesystems when df command hung