This is an error that came up on the console while i was loged in . also the machine becomes unresponsive on all network ports. could not even ping the machine. I am running Debian lenny ispconfig 3.0.2.1 perfect install.
Till, No the disk is ok. I kinda figured it may be harddisk related. Filesystem Size Used Avail Use% Mounted on /dev/sda1 19G 1.7G 17G 10% / tmpfs 506M 0 506M 0% /lib/init/rw udev 10M 568K 9.5M 6% /dev tmpfs 506M 0 506M 0% /dev/shm