[CentOS] Disk space warning ("gdu-notification-daemon" type) for remote systems

//Hi,/

/I need to implement a system of disk space checks and warnings for a 
client-server setup running CentOS 6. Simply put, I just want a warning 
popup rather like the ones given by gdu-notification-daemon when server 
file system is full or nearly full, but they should appear on the client 
display(s) rather than locally, and must also work when nobody is logged 
directly in to the (server) system.

What do you reckon is the best way of achieving this? I can think of 
ways to get what I want via scripts/custom programs/cron jobs, but 
perhaps there are "standard" solutions already? I'd like to avoid 
re-inventing the wheel... I also know that there are various advanced 
solutions for system resource monitoring out there - I've used Nagios in 
the past - but it may seem like setting up something like that will be 
an overkill in this case.

So what's everyone's thoughts on this?


- Toralf



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