Extending volume in OpenStack

To extend a volume it needs to be detached from the instance.

To re-attach a volume using the api:

(openstack-oscli) mats@xps-13:~$ openstack server list | grep live-solrcloud-3
| 126ac73a-a1ab-4431-83a2-b86e0ce1bf3e | live-solrcloud-3   | ACTIVE | default=10.65.0.32, 2a0a:bcc0:40:1::118   | N/A (booted from volume) | b2.c8r32      |
(openstack-oscli) mats@xps-13:~$ openstack volume list | grep live-solrcloud-3
| 99ff4b26-459e-4e88-97f5-ab708b2b4786 | live-solrcloud-3-vol-data    | available |  500 |                                             |
| 7b69fd8e-0ef3-4708-ad7c-43cdde9bad36 | live-solrcloud-3-vol-root    | in-use    |   20 | Attached to live-solrcloud-3 on /dev/sda    |
(openstack-oscli) mats@xps-13:~$ openstack server add volume 126ac73a-a1ab-4431-83a2-b86e0ce1bf3e 99ff4b26-459e-4e88-97f5-ab708b2b4786 --device /dev/sdb

Useful commands

Various commands for displaying volume status and information:

df -Th

lsblk -f

sudo fdisk -l

sudo pvdisplay

sudo lvdisplay

Extend physical volume:

sudo pvresize /dev/sdb

Extend logical volume:

sudo lvextend -l +100%FREE /dev/vg_data/lv_data

Extend file system:

sudo xfs_growfs /dev/vg_data/lv_data