I am getting the occasional CPU load spike. I am not sure how to really go about disagnosing the spikes from logs or maybe i need to setup a new log specifically to catch the spike. The last spike was between 11:40-11:55pm Backup occurs every morning at 3:54am according to my crontab Log processing as I understand it happens all the time and is not at a set time. Below is the TOP which seems to show my ram is at 90% usage. 00:33:44 up 12 days, 17:04, 1 user, load average: 0.19, 0.43, 1.07 106 processes: 103 sleeping, 2 running, 1 zombie, 0 stopped CPU states: 36.0% user 8.7% system 0.0% nice 0.0% iowait 55.1% idle Mem: 1014756k av, 913672k used, 101084k free, 0k shrd, 97480k buff 568476k actv, 123880k in_d, 20020k in_c Swap: 1052248k av, 86244k used, 966004k free 638780k cached WHM shows the following : Server Load 0.42 (1 cpu) Memory Used 17.9 % Swap 0.918 % I ran a tail on /var/log/messages and the only thing i saw was : Sep 8 23:43:35 servername filelimits: Increasing file system limits succeeded I am not sure what the file system limits mean? I also had about 60 lame server requests in a 3 minute period ex : named: lame server resolving '126.96.36.199.in-addr.arpa' (in '84.5.4.in-addr.arpa'?): 188.8.131.52#53 My resolv.conf appears to be setup correctly and my server has a FQDN tested at dnsreport.com So after all this here are the main questions : 1 Memory Usage shown by top and by whm 2 How can i log/check for reason for the spike 3 Is the file system limits a cause or an indicator to the reason (what does it mean?) 4 Is it the very large number of lame server resolving and if so how can i stop having them Thanks to anyone who can take the time to help me with this!