sudo sysctl -w vm.nr_hugepages=1280
yada
sudo sysctl -w vm.nr_hugepages=$(nproc)
sudo bash -c "echo vm.nr_hugepages=1280 >> /etc/sysctl.conf"
yada
sudo bash -c "echo vm.nr_hugepages=$(nproc) >> /etc/sysctl.conf"
sudo sysctl -w vm.nr_hugepages=1280
yada
sudo sysctl -w vm.nr_hugepages=$(nproc)
sudo bash -c "echo vm.nr_hugepages=1280 >> /etc/sysctl.conf"
yada
sudo bash -c "echo vm.nr_hugepages=$(nproc) >> /etc/sysctl.conf"
There are several commands to determine the WWN of a Fibre Channel (FC) HBA and their status (online/offline). The post discusses few of the most commonly used methods.
Method 1
To find the HBA cards installed on your system use :