After about 5 days of operation, NFS returns intermittent "No Such File or Directory" errors. The frequency of this occurence escelates until ultimately the server crashes. Upon reboot, it is initially fine until about 5 days later when problem starts up again. This problem is occuring on two separate Dell PowerEdge 1850's with 2GB RAM, running CentOS 4 with software raid 1 over two drives. Any suggestions?