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How to Add Swap on CentOS 7

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Add Swap on CentOS 7

Create Swap

1. Check the System for Swap Information

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2. Create a Swap File 4GB with blocksize 1mb

Change 4096 to size what you want

3. Check Created Swapfile


4. Enable a Swap File


5. Check Modified Permission of Swapfile


6. To secure, set up the swap space for use


7. Verify that the procedure was successful

After you successfully add swap on CentOS 7, continue steps below

8. Make the Swap File Permanent

insert in the last line

Tweak Your Swap Settings (Optional)

Set Swappiness


Cache Pressure

Check  Present Value


Change to 16GB

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