Setting Up Swap on RHEL 10

 

Setting Up Swap on RHEL 10

Just created a 2GB swap file on a fresh RHEL 10 system to improve memory management:

fallocate -l 2G /swapfile

chmod 600 /swapfile

mkswap /swapfile

swapon /swapfile

echo '/swapfile swap swap defaults 0 0' >> /etc/fstab

Swap helps prevent out-of-memory issues and keeps your system stable under load — especially on minimal installs or cloud VMs with limited RAM.

Here’s the verification after setup:

root@iamsonukushwaha:~# swapon --show
NAME      TYPE SIZE USED PRIO
/swapfile file   2G   0B   -2

root@iamsonukushwaha:~# free -gh
               total        used        free      shared  buff/cache   available
Mem:           951Mi       387Mi       328Mi       6.8Mi       390Mi       564Mi
Swap:          2.0Gi          0B       2.0Gi

Small setup, big impact! 🚀