How can I find what uses the space in a LV(logical volume)?












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The logical volume(aka LV), centos-home is created automatically when installing CentOS 7 by default, but I didn't use it manually.



Now, I have mounted an empty directory, work to centos-home.



/home/anselmo/work ==> /dev/mapper/centos-home



The following are the results of df -h after mount.



[anselmo@anselmo-centos7 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos_anselmo--centos7-root 50G 45G 5.2G 90% /
devtmpfs 63G 0 63G 0% /dev
tmpfs 63G 302M 63G 1% /dev/shm
tmpfs 63G 43M 63G 1% /run
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/sdb3 1014M 358M 657M 36% /boot
/dev/sdc1 200M 12M 189M 6% /boot/efi
/dev/mapper/centos_anselmo--centos7-home 2.6T 1.7T 948G 65% /home
tmpfs 13G 92K 13G 1% /run/user/1000
/dev/mapper/centos-home 65G 8.8G 56G 14% /home/anselmo/work


Though I mounted an empty directory, the LV had already used space 8.8G.



How can I find what uses this space?









share























  • What filesystem you use for this LV?

    – Romeo Ninov
    1 min ago
















0















The logical volume(aka LV), centos-home is created automatically when installing CentOS 7 by default, but I didn't use it manually.



Now, I have mounted an empty directory, work to centos-home.



/home/anselmo/work ==> /dev/mapper/centos-home



The following are the results of df -h after mount.



[anselmo@anselmo-centos7 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos_anselmo--centos7-root 50G 45G 5.2G 90% /
devtmpfs 63G 0 63G 0% /dev
tmpfs 63G 302M 63G 1% /dev/shm
tmpfs 63G 43M 63G 1% /run
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/sdb3 1014M 358M 657M 36% /boot
/dev/sdc1 200M 12M 189M 6% /boot/efi
/dev/mapper/centos_anselmo--centos7-home 2.6T 1.7T 948G 65% /home
tmpfs 13G 92K 13G 1% /run/user/1000
/dev/mapper/centos-home 65G 8.8G 56G 14% /home/anselmo/work


Though I mounted an empty directory, the LV had already used space 8.8G.



How can I find what uses this space?









share























  • What filesystem you use for this LV?

    – Romeo Ninov
    1 min ago














0












0








0








The logical volume(aka LV), centos-home is created automatically when installing CentOS 7 by default, but I didn't use it manually.



Now, I have mounted an empty directory, work to centos-home.



/home/anselmo/work ==> /dev/mapper/centos-home



The following are the results of df -h after mount.



[anselmo@anselmo-centos7 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos_anselmo--centos7-root 50G 45G 5.2G 90% /
devtmpfs 63G 0 63G 0% /dev
tmpfs 63G 302M 63G 1% /dev/shm
tmpfs 63G 43M 63G 1% /run
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/sdb3 1014M 358M 657M 36% /boot
/dev/sdc1 200M 12M 189M 6% /boot/efi
/dev/mapper/centos_anselmo--centos7-home 2.6T 1.7T 948G 65% /home
tmpfs 13G 92K 13G 1% /run/user/1000
/dev/mapper/centos-home 65G 8.8G 56G 14% /home/anselmo/work


Though I mounted an empty directory, the LV had already used space 8.8G.



How can I find what uses this space?









share














The logical volume(aka LV), centos-home is created automatically when installing CentOS 7 by default, but I didn't use it manually.



Now, I have mounted an empty directory, work to centos-home.



/home/anselmo/work ==> /dev/mapper/centos-home



The following are the results of df -h after mount.



[anselmo@anselmo-centos7 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos_anselmo--centos7-root 50G 45G 5.2G 90% /
devtmpfs 63G 0 63G 0% /dev
tmpfs 63G 302M 63G 1% /dev/shm
tmpfs 63G 43M 63G 1% /run
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/sdb3 1014M 358M 657M 36% /boot
/dev/sdc1 200M 12M 189M 6% /boot/efi
/dev/mapper/centos_anselmo--centos7-home 2.6T 1.7T 948G 65% /home
tmpfs 13G 92K 13G 1% /run/user/1000
/dev/mapper/centos-home 65G 8.8G 56G 14% /home/anselmo/work


Though I mounted an empty directory, the LV had already used space 8.8G.



How can I find what uses this space?







centos filesystems mount lvm





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asked 9 mins ago









Anselmo ParkAnselmo Park

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  • What filesystem you use for this LV?

    – Romeo Ninov
    1 min ago



















  • What filesystem you use for this LV?

    – Romeo Ninov
    1 min ago

















What filesystem you use for this LV?

– Romeo Ninov
1 min ago





What filesystem you use for this LV?

– Romeo Ninov
1 min ago










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