徐万新之路swapoff /dev/mapper/oracle-swap
lvextend -L +8G /dev/mapper/oracle-swap
mkswap /dev/mapper/oracle-swap
swapon /dev/mapper/oracle-swap
free -gswapoff /dev/mapper/oracle-swap
lvextend -L +8G /dev/mapper/oracle-swap
mkswap /dev/mapper/oracle-swap
swapon /dev/mapper/oracle-swap
free -g
