Tested the partition encryption of LVM in RHEL6
1, vgs -report information about volume group
2, lvs-report the information about logical volumes
3, create the logic volume, size 100M
lvcreate -n lv_lockbox -L 100M vgsrv
4, format the logic volume just created
mkfs.ext4 /dev/vgsrv/lv_lockbox
5, create the mount point
mkdir /mnt/lockbox
6, for security reasons, dump random data to the logic volume created
cat /dev/urandom > /dev/vgsrv/lv_lockbox
7, create the encryption partition based on step 4, here needs to input the passphrase.
cryptsetup luksFormat /dev/vgsrv/lv_lockbox
8, luksOpen the logic volume to lockbox, here needs to input the passphrase setup earlier.
cryptsetup luksOpen /dev/vgsrv/lv_lockbox lockbox
9, create file system based on the luksOpen lockbox
mkfs.ext4 /dev/mapper/lockbox
10, mount the lockbox to /mnt/lockbox
mount /dev/mapper/lockbox /mnt/lockbox/
11, copy files to /mnt/lockbox for testing,
cp /etc/services /mnt/lockbox
12, grep http /mnt/lockbox/services