How to check diskspace on SFTP server

Question

Recently I encountered a lack of diskspace problem on a SFTP server and I realised I have no idea how to check how much is left or even the total amount.

Does anyone know how to do this through an application like FileZilla or perhaps there is a command that can be used for this purpose?

Note that the server is hosted at a third party and I was hoping there was a way to answer this question without going through them.

Update:

I tried connecting via shell using both putty and cygwin ssh. Putty silently failed while cygwin gave me the following error message:

$ ssh [user]@[host] -i "[priv.key]"
Last login: Wed Aug 17 12:54:46 2011 from 195.204.103.176
Could not chdir to home directory /local00/ftproot/[user]: No such file or directory
/usr/local/sbin/scponlyc: No such file or directory
Connection to [host] closed.

Any ideas?

Answer 1

ssh <host> df -h

Will give you all of the necessary information, in the absence of things like disk quotas. If you don't have shell access (or some way of running commands, such as via PHP exec), then you can't check disk space, but then again, if you don't have shell, how can it be your responsibility to administer the server and manage disk space?

Answer 2

With the SFTP command set there is no possibility to get the available size or the space used.

If you are able to SSH to the server (same host, user, password) you could issue a df -h to see the space available. Or a du -h in the folder to see the used space of the folder.