Se requiere espacio libre adicional disponible para expandir el sistema, también es posible particionar otro volumen o agregar otro disco fisico a tu grupo de volumenes.
1. # grep swap /etc/fstab
/dev/VolGroup00/LogVol01 swap swap defaults 0 0
2. Run the lvdisplay to see the size of your logical volume.
# lvdisplay /dev/VolGroup00/LogVol01
--- Logical volume ---
LV Name /dev/VolGroup00/LogVol01
VG Name VolGroup00
LV UUID AZ143-B8kp-z9KV-JYtG-N997-JOQ6-ETaJaJ
LV Write Access read/write
LV Status available
# open 1
LV Size 4096.00 MB
Current LE 24
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:1
3. To resize an LVM you need to unmount it, or in this case turn swap off.
# swapoff /dev/VolGroup00/LogVol01
4. To resizing the volume to add 1 GB (assuming you have the space to extend into) use the lvresize command.
# lvresize /dev/VolGroup00/LogVol01 -L +1G
Extending logical volume LogVol01 to 5 GB
Logical volume LogVol01 successfully resized
5. Next turn swap back on.
# swapon /dev/VolGroup00/LogVol01
# free -m
total used free shared buffers cached
Mem: 16384 13343 3042 0 48 120
-/+ buffers/cache: 174 201
Swap: 5120 0 5120
6. If you encounter an issue trying to mount swap, repeat step 3.
# swapoff /dev/VolGroup00/LogVol01
After that, run
# mkswap /dev/VolGroup00/LogVol01
7. After mkswap completes, repeat step 5.
# swapon /dev/VolGroup00/LogVol01
8. Validate the swap space again by running free -m.