5.3.1. Reducing Swap on an LVM2 Logical Volume

To reduce an LVM2 swap logical volume (assuming /dev/VolGroup00/LogVol01 is the volume you want to extend):

Disable swapping for the associated logical volume:
```
# swapoff -v /dev/VolGroup00/LogVol01
```

Reduce the LVM2 logical volume by 512 MB:

# lvm lvreduce /dev/VolGroup00/LogVol01 -L -512M

Format the new swap space:
```
# mkswap /dev/VolGroup00/LogVol01
```
Enable the extended logical volume:
```
# swapon -va
```
Test that the logical volume has been reduced properly:
```
# cat /proc/swaps # free
```