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












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?






centos filesystems mount lvm







share|improve this question























  • What filesystem you use for this LV?

    – Romeo Ninov
    9 mins 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?






centos filesystems mount lvm







share|improve this question























  • What filesystem you use for this LV?

    – Romeo Ninov
    9 mins ago














0












0








0


1






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







share|improve this question














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




centos filesystems mount lvm






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 16 mins ago









Anselmo ParkAnselmo Park

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  • What filesystem you use for this LV?

    – Romeo Ninov
    9 mins ago



















  • What filesystem you use for this LV?

    – Romeo Ninov
    9 mins ago

















What filesystem you use for this LV?

– Romeo Ninov
9 mins ago





What filesystem you use for this LV?

– Romeo Ninov
9 mins ago










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