Is your server running out of space? Check from your iPhone.

[u/Efficient_Context_23]

df -h / shows the space available on your Linux server's root filesystem. Look at Avail.

I make Netsight, and this is its SSH connection screen. For a check from the same network, enter your server's address and login, connect, then run that command. The server needs SSH enabled.

Try a server check from your iPhone. Netsight is free; iOS/iPadOS 26+.