How to increase the swap space by expanding LVM parition

Here's the quick guide on how you can expand the size of your LVM (file format) swap partition in a Linux command line environment.
 

1. Check your swap space

#swapon --show


2. Turn off your swap before performing the lvm resize
#swapoff -va

3. Now, Resize your LVM partition by 8GB for example (ensure you have enough unused drive space in your lvm file system)

#lvm lvresize /dev/centos/swap -L +8GiB

4.Initialize swap space

#mkswap /dev/centos/swap

5. Re-enable swap space

#swapon -va

Now your swap space should have been increased by additional 8GB.



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