----------------до------------------------
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             5.7G  1.7G  3.8G  30% /
tmpfs                 499M     0  499M   0% /dev/shm
/dev/mapper/lv1-db    3.9G  800M  2.9G  22% /mnt/db
/dev/mapper/lv1-data  3.8G  800M  2.9G  22% /mnt/lvmdata
/dev/sda3             1.6G  795M  751M  52% /mnt/data

/dev/sda1: UUID="b4a07fd8-292f-447d-9487-e1690a98576b" TYPE="ext4"
/dev/sda2: UUID="f7a1970e-e1bd-4110-a5b3-0d36c351a03b" TYPE="swap"
/dev/sda3: UUID="0bd3025c-8f08-41bd-9270-b275d4bc43e0" TYPE="ext4"
/dev/sdb: UUID="ef220l-ogcm-uitD-bapf-e7nl-mbfd-voMZfm" TYPE="LVM2_member"
/dev/mapper/lv1-db: UUID="7bbdb1af-9a54-49ef-8722-a451cc3e8f7f" TYPE="ext4"
/dev/mapper/lv1-data: UUID="ed1a1bba-fc4a-40c8-8210-69e780ba42e3" TYPE="ext4"

----------------после---------------------
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             5.7G  1.7G  3.8G  30% /
tmpfs                 499M     0  499M   0% /dev/shm
/dev/mapper/lv1-db    3.9G  800M  2.9G  22% /mnt/db
/dev/mapper/lv1-data  4.6G  800M  3.6G  19% /mnt/lvmdata
/dev/sda3             853M  795M   14M  99% /mnt/data

/dev/sda1: UUID="b4a07fd8-292f-447d-9487-e1690a98576b" TYPE="ext4"
/dev/sda2: UUID="f7a1970e-e1bd-4110-a5b3-0d36c351a03b" TYPE="swap"
/dev/sda3: UUID="9faa3433-0f23-462b-8bda-9b177d7ad9e8" TYPE="ext4"
/dev/sdb: UUID="ef220l-ogcm-uitD-bapf-e7nl-mbfd-voMZfm" TYPE="LVM2_member"
/dev/mapper/lv1-db: UUID="7bbdb1af-9a54-49ef-8722-a451cc3e8f7f" TYPE="ext4"
/dev/mapper/lv1-data: UUID="ed1a1bba-fc4a-40c8-8210-69e780ba42e3" TYPE="ext4"
/dev/sda4: UUID="vekyZI-XWl1-e3MX-F902-yN6p-3VPa-EEWS4K" TYPE="LVM2_member"