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Sandeep Kumar | Founder, Tanti Technologies At Tanti Technologies, I share practical knowledge, hands-on tutorials, and real-world solutions across Python, SQL, Docker, Kubernetes, CI/CD, AWS, Azure, Machine Learning, Generative AI, and Agentic AI. My mission is to simplify complex technologies and provide actionable insights that help developers, engineers, and businesses learn faster, build better, automate smarter, and innovate with confidence. 🚀 Learn • Build • Automate • Innovate Follow Tanti Technologies for practical technology insights and next-generation AI solutions.

Friday, 1 November 2013

Swap Space in linux


1. To setup swap space on a newly created partition :
# mkswap /dev/sdb3

2. To enable the swap partition :
# swapon /dev/sdb3

3. To enable the above swap device at boot time, add the below line to /etc/fstab

/dev/sdb3 swap swap defaults 0 0

4 To create a swap file:

a. Create an empty file
# dd if=/dev/zero of=/swapfile bs=1024 count=65536

b. Create swap space on the file
# mkswap /swap-file

c. Enable the swap file
# swapon /swap-file

d. Add the below line to /etc/fstab
/swap-file swap swap defaults 0 0

5. To remove a swap file

a. Disable swap on the file
# rmswap /swap-file
b. Remove the corresponding entry in /etc/fstab
c. Delete the file
# rm /swap-file

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