Over the last few months, I have been building out more and more virtual machines in my HomeLab ESX Cluster. Its time to expand. First came a four node Ceph Cluster, then an OpenStack Juno environment, and then an OpenStack Icehouse environment. Plus, I still needed to build out a Docker/Kubernetes test environment. It started to become apparent … Continue reading HomeLab Adventures: The Expansioning
supermicro
HomeLab: How to Resolve Supermicro x8dti Fan Revving Issues
Specifically what was happening was this... The systems were running cool, so the fans would spin down to a low rpm and the system would then throw a low rpm threshold alert and spin the fan back up.When this occurs the system switches into some sort of "Critical Cooling Mode" and spins all the fans up to 100% for a few seconds. Rinse and repeat a few dozen times and you hear what almost sounds like an intoxicated neighbor playing with his new weedeater.
MegaRaid Cards Via CLI
MegaCLI is the Linux console based management utility for LSI SAS controllers. Honestly its a pretty crummy command when compared to HP's command line tool, but that's often what you are stuck with when you buy Dell or Supermicro.