====== 3par ======

To find the WWN numbers

  /sys/class/fc_host/host?/port_name


Serial port
je specialni a rx pin je na konektoru na jine pozici nez u cisco kabelu - nelze psat ale koukat ano


===== lowering power comsumption =====

per 3par to je 45W + ucinnost zdroju a chlazeni ... to bude tak 55W :)
  echo "Activate low-consumption mode"
  sed -i 's/ intel_idle.max_cstate=1//g' /boot/grub/grub.cfg
  echo ondemand | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
  
  show node env