Question

rhel 5.5 - How to increase swap memory to 30G

Answer 1

sudo dd if=/dev/mapper/VolGroup00-LogVol00 of=/swap30gbextend bs=1M count=30000
sudo mkswap /swap30gbextend
sudo swapon /swap30gbextend
sudo chmod 600 /swap30gbextend

## Edit the /etc/fstab File:
/swap30gbextend   swap    swap    defaults        0 0

## Activate the New Swap Space:
sudo swapon -a

## Verify the Changes:
free -m