[Openstack] Resize root partition in VM Openstack

Guide Resize Mounted Volume in VM Openstack

Eventually we need to resize volume root /dev/sda, which is the root partition; the problem is root partition cannot detach, so how we can resize the size of the root partition? Here’s your answer dude

Resize From OpenStack Side

## set the status to available to a volume
openstack volume set --state available {volume id}

## resize the volume
openstack volume set --size 40 {volume id}

## check size and status again
openstack volume show {volume id}

## set status to in-use again
openstack volume set --state in-use {volume id}

Resize Volume from VM Side

## Grow part (Contoh akan resize root partisi)
sudo growpart /dev/vda 1

## Check apakah sudah grow sesuai volume baru
lsblk

## Resize ‘/’ partition to fill all space
sudo resize2fs /dev/vda1

## (option) If your filesystem is XFS, it can be grown while mounted using the xfs_growfs command:

sudo xfs_growfs /

## Verify 
sudo df -H

if no space left on the block device, running command:

$ sudo mount -o size=10M,rw,nodev,nosuid -t tmpfs tmpfs /tmp

After the process unmount /tmp

sudo umount /tmp

IF LVM Volume :

1. Refresh LVM VG (LVM from lsblk)

vgchange --refresh

2. Resize pv

pvresize /dev/sdX

3. Extend lv

lvextend -l +100%FREE /dev/<vg_name>/<lv_name>

4. Mount /dev//

mount /dev/<vg_name>/<lv_name> /mnt

5. Filesystem grow

- Jika filesystem XFS

xfs_growfs /dev/<vg_name>/<lv_name>

- Jika filesystem . . . . Lanjutkan

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