Add space to a LV from another VG

wtb · 05-17-2013, 09:25 AM

Hi,

I would like to grow my /usr FS (which is a logical volume called vg_one-usr.fs) but I don't have anymore free space in my volume group vg_one.
However I have free space on another volume vg_two. How can I use this space to extend my LV ?

Code:

# pvs
  PV         VG     Fmt  Attr PSize   PFree
  /dev/vda2  vg_one lvm2 a-    39.84g      0
  /dev/vdb   vg_two lvm2 a-   200.00g 183.11g
  /dev/vdc   vg_one lvm2 a-   159.97g  64.00m

# vgs
  VG     #PV #LV #SN Attr   VSize   VFree
  vg_two   1  33   0 wz--n- 200.00g 183.11g
  vg_one  2   7   0 wz--n- 199.81g  64.00m

# df -lh /usr
/dev/mapper/vg_one-usr.fs
                      4.0G  3.6G  184M  96% /usr

Thanks

druuna · 05-18-2013, 02:44 AM

Looks like you need to resize both LV's.

Have a look here: LVM Resizing Guide

More LVM related entries are present on that site: Linux (articles 4 -> 10)