Hey all,
What do you think mostly happened in the following situation?
I have a Red Hat 5.5 server. Someone, somehow, managed to get two .nfs000.... type files that totaled over a terabyte in size. I removed them and thought things were back to normal. Then I started getting complains from users via a desktop popup they have that /home was full. I ssh'ed to the server and did a df and sure enough the df reported 100% in use. But a du reported only 109 gigs in use. The filesystem is 1.3 Terabytes. I cleaned up a few things and monitored the usage with df. This extra space very rapidly disappeared and df again reported 100%.
So I rebooted. After the reboot df reported only 20% in use and du backed it up. I did notice during the reboot that the hard drive lights were flashing widely which was an indication to me that the RAID 5 was rebuilding itself or doing some sort of QC. It actually took a while for the system to come up and I was getting pdflush timeouts before nash actually started.
Those .nfs files obviously maxed out the filesystem, but why would the system not be able to access it's disk space properly after their removal?
Thanks.