Questo contenuto non è disponibile nella lingua selezionata.
15.2. Removing Swap Space
Sometimes it can be prudent to reduce swap space after installation. For example, say you downgraded the amount of RAM in your system from 1 GB to 512 MB, but there is 2 GB of swap space still assigned. It might be advantageous to reduce the amount of swap space to 1 GB, since the larger 2 GB could be wasting disk space.
You have three options: remove an entire LVM2 logical volume used for swap, remove a swap file, or reduce swap space on an existing LVM2 logical volume.
15.2.1. Reducing Swap on an LVM2 Logical Volume
To reduce an LVM2 swap logical volume (assuming
/dev/VolGroup00/LogVol01 is the volume you want to reduce):
Procedure 15.3. Reducing an LVM2 swap logical volume
- Disable swapping for the associated logical volume:
#
swapoff -v /dev/VolGroup00/LogVol01 - Reduce the LVM2 logical volume by 512 MB:
#
lvreduce /dev/VolGroup00/LogVol01 -L -512M - Format the new swap space:
#
mkswap /dev/VolGroup00/LogVol01 - Enable the extended logical volume:
#
swapon -v /dev/VolGroup00/LogVol01
To test if the swap's logical volume size was successfully reduced, use
cat /proc/swaps or free to inspect the swap space.
