How much does my volume group use of my hard drive?

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I want to know how much space of my hard drive is being used in the hard drive , let me explain:



My first hard drive is /dev/sda and the second one is /dev/sdb each one of them has a logical voume and they are in the same volume group, i can easily know how much of this volume group is used , but how much of each drive is used ? how does the lvm spread data across those volumes ?










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    -1















    I want to know how much space of my hard drive is being used in the hard drive , let me explain:



    My first hard drive is /dev/sda and the second one is /dev/sdb each one of them has a logical voume and they are in the same volume group, i can easily know how much of this volume group is used , but how much of each drive is used ? how does the lvm spread data across those volumes ?










    share|improve this question
























      -1












      -1








      -1








      I want to know how much space of my hard drive is being used in the hard drive , let me explain:



      My first hard drive is /dev/sda and the second one is /dev/sdb each one of them has a logical voume and they are in the same volume group, i can easily know how much of this volume group is used , but how much of each drive is used ? how does the lvm spread data across those volumes ?










      share|improve this question














      I want to know how much space of my hard drive is being used in the hard drive , let me explain:



      My first hard drive is /dev/sda and the second one is /dev/sdb each one of them has a logical voume and they are in the same volume group, i can easily know how much of this volume group is used , but how much of each drive is used ? how does the lvm spread data across those volumes ?







      linux lvm hard-disk






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      asked Feb 12 at 12:57









      KingofkechKingofkech

      4831519




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          You can use pvs to show all the segments in your physical volumes and the logical volumes they contain, which will allow you to get a good idea of how your devices are used:



           sudo pvs --segments -o +lv_name


          This will show something like



           PV VG Fmt Attr PSize PFree Start SSize LV
          /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 0 16384 root
          /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 16384 4096
          /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 20480 8192 usrlocal
          /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 28672 1853


          which shows that my /dev/sda1 PV, which is part of the vg-fast VG, is split into four segments, two of which are unused, and two of which are used respectively for the LVs root and usrlocal.






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            You can use pvs to show all the segments in your physical volumes and the logical volumes they contain, which will allow you to get a good idea of how your devices are used:



             sudo pvs --segments -o +lv_name


            This will show something like



             PV VG Fmt Attr PSize PFree Start SSize LV
            /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 0 16384 root
            /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 16384 4096
            /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 20480 8192 usrlocal
            /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 28672 1853


            which shows that my /dev/sda1 PV, which is part of the vg-fast VG, is split into four segments, two of which are unused, and two of which are used respectively for the LVs root and usrlocal.






            share|improve this answer



























              1














              You can use pvs to show all the segments in your physical volumes and the logical volumes they contain, which will allow you to get a good idea of how your devices are used:



               sudo pvs --segments -o +lv_name


              This will show something like



               PV VG Fmt Attr PSize PFree Start SSize LV
              /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 0 16384 root
              /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 16384 4096
              /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 20480 8192 usrlocal
              /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 28672 1853


              which shows that my /dev/sda1 PV, which is part of the vg-fast VG, is split into four segments, two of which are unused, and two of which are used respectively for the LVs root and usrlocal.






              share|improve this answer

























                1












                1








                1







                You can use pvs to show all the segments in your physical volumes and the logical volumes they contain, which will allow you to get a good idea of how your devices are used:



                 sudo pvs --segments -o +lv_name


                This will show something like



                 PV VG Fmt Attr PSize PFree Start SSize LV
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 0 16384 root
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 16384 4096
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 20480 8192 usrlocal
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 28672 1853


                which shows that my /dev/sda1 PV, which is part of the vg-fast VG, is split into four segments, two of which are unused, and two of which are used respectively for the LVs root and usrlocal.






                share|improve this answer













                You can use pvs to show all the segments in your physical volumes and the logical volumes they contain, which will allow you to get a good idea of how your devices are used:



                 sudo pvs --segments -o +lv_name


                This will show something like



                 PV VG Fmt Attr PSize PFree Start SSize LV
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 0 16384 root
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 16384 4096
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 20480 8192 usrlocal
                /dev/sda1 vg-fast lvm2 a-- 119.24g 23.24g 28672 1853


                which shows that my /dev/sda1 PV, which is part of the vg-fast VG, is split into four segments, two of which are unused, and two of which are used respectively for the LVs root and usrlocal.







                share|improve this answer












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                answered Feb 12 at 13:13









                Stephen KittStephen Kitt

                174k24399476




                174k24399476



























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