Make swap memory on RHEL

Make new swap memory space

fdisk to disk

create new partition with Linux swap type

partprobe to update partition table to OS

mkswap “disk_path”

mkswap /dev/sda1

swapon -s (status)

swapon -a (activate)

 

Remove new swap space

swapoff “disk_path”

swapon -s (status)

 

Verify the new swap space

blkid and check the type “swap”

 

Detail statistic on how many pages are in &out of the memory

sar -A