13.7. Reducing swap on an LVM2 logical volume
You can reduce swap on an LVM2 logical volume. Assuming /dev/VolGroup00/LogVol02 is the volume you want to reduce.
Procedure
Disable swapping for the associated logical volume:
# swapoff -v /dev/VolGroup00/LogVol02Clean the swap signature:
# wipefs -a /dev/VolGroup00/LogVol02Reduce the LVM2 logical volume by 512 MB:
# lvreduce -L -512M /dev/VolGroup00/LogVol02Format the new swap space:
# mkswap /dev/VolGroup00/LogVol02Activate swap on the logical volume:
# swapon -v /dev/VolGroup00/LogVol02
Verification
To test if the swap logical volume was successfully reduced, inspect active swap space by using the following command:
$ cat /proc/swaps$ free -h