Six 9's

http://whatexit.org/tal/mywritings/dumb-things-to-check.html

Great list of things to check that you never think of. Especially the line endings. That has messed up my puppet configurations more than anything else.

Also

http://www.ipmsg.org/tools/fastcopy.html.en for a great tool to copy files including all the ACL’s and overcome the 260bit path limit

Just found out that by default Broadcom 10G cards do NOT work with bonding RHEL. Apparently they try to aggregate packets over all connections and in releases previous to 5.2 would cause a kernel panic. You can tell if you are having a problem by NUMEROUS syslog messages saying “recieved packets cannot be forwarded while LRO is enabled”. To fix this issue you need to add the following line to modprobe.conf
options bnx2x diable_tpa=1