Extending and Reducing LVM partitions

Discussion in 'Linux' started by kumaramy, May 4, 2020.

  1. kumaramy

    kumaramy MDL Member

    Feb 16, 2013
    236
    13
    10
    Hello.
    I have following two lvm partitions on my SSD.

    Screenshot from 2020-05-04 21-42-56.png

    Screenshot from 2020-05-04 21-42-56.png

    But, imaging if i need to extend the /dev/sda2 LVM (root partition) then is it possible to extend ?
    I have this question because
    # pvs
    PV VG Fmt Attr PSize PFree
    /dev/sda2 rhel_classroom lvm2 a-- <130.00g 0
    /dev/sda3 rhel_home lvm2 a-- 101.88g 0

    Means:
    pv sda2 is assigned to vg rhel_classroom
    pv sda3 is assigned to vg rhel_home

    # lvs
    LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
    root rhel_classroom -wi-ao---- <130.00g
    home rhel_home -wi-ao---- 101.88g

    Now if i need to extend /dev/sda2's LVM i.e root lvm and there is free space in /dev/sda3 (/home's lvm) then can rhel_home VG share it's free space with root LV?

    also vice versa if i need to extend home LV and root LV has free space then can rhel_classroom VG share it's free space with home LV?

    Thanks.
     

    Attached Files:

  2. windsman

    windsman MDL Expert

    Jan 11, 2010
    1,415
    1,203
    60
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. windsman

    windsman MDL Expert

    Jan 11, 2010
    1,415
    1,203
    60
    I think you can but there are others places where configurations parameters are stored like services/daemons, /etc, /var/lib, /var/spool, and /home for applications, it depends of distro.

    windsman.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...