I was recently told by another developer that whilst diagnosing a server issue (our application could not write logs due to insufficient disk space) he was able to view remaining disk space on what he called an 'isolated partition'. He said that this partition was on
/var (I may have my terms incorrect here). What I usually do to check disk space is
df -h but this told me that disk usage was well below 50%.
The developer in question has since left the company and I would like to know:
a) what he meant b) how to view percentage disk usage on all volumes, partitions etc in a one-liner from a shell.
I also tried
mount to list all mounted partitions but could not see anything relating to