Quick create swap file on Rocks 6 cluster

swapon -s; #check existing swap
dd if=/dev/zero of=/state/partition1/swapfile bs=1024 count=200000k; #create swapfile, 200000k x 1kb = 200GB
mkswap /state/partition1/swapfile; #define swapfile
swapon /state/partition1/swapfile; #activate swapfile
cp /etc/fstab /etc/fstabORIG; #back up current fstab
echo "/state/partition1/swapfile          swap            swap    defaults        0 0" >> /etc/fstab; #make permanent