One of the logical volumes on my desktop is running out of space. I want to add 200GB to that volume. Here is one way to achieve this task.
First a bit of warning. Don’t, or never, just copy and paste what you see here if you want to apply it to your own system. You may accidentally destroy your precious data.
# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert backup data -wi-ao---- 200.00g scratch data -wi-ao---- 1.00t home system -wi-ao---- 90.00g root system -wi-ao---- 100.00g swap system -wi-ao---- 16.00g tmp system -wi-a----- 4.00g var system -wi-ao---- 20.00g
Let’s check the available disk space of volume groups we can use:
# vgs VG #PV #LV #SN Attr VSize VFree data 1 2 0 wz--n- 1.82t 639.01g system 1 5 0 wz--n- 232.38g 2.38g
I want to resize ‘scratch’, which sits on ‘data’ volume group. There are about 639GB free on ‘data’.
Let’s give ‘data’ another 200GB.
# lvresize -rL +200G /dev/data/scratch Size of logical volume data/scratch changed from 1.00 TiB (262144 extents) to 1.20 TiB (313344 extents). Logical volume scratch successfully resized. resize2fs 1.42.13 (17-May-2015) Filesystem at /dev/mapper/data-scratch is mounted on /srv/scratch; on-line resizing required old_desc_blocks = 64, new_desc_blocks = 77 The filesystem on /dev/mapper/data-scratch is now 320864256 (4k) blocks long.
Finally, we can verify the change:
# lvs data LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert backup data -wi-ao---- 200.00g scratch data -wi-ao---- 1.20t
Now ‘scratch’ has a total of 1.20TB.