Today I was able to test Queens+Bionic for the first time in about 2 weeks, without being roadblocked by bugs, Due to a resource constraint in hardware i was only giving one host. I decided to deploy opentack-on-lxd which uses the same bits as a multi-node deployment. 

ubuntu@alekhin:~/openstack-on-lxd$ openstack volume list
+--------------------------------------+---------+-----------+------+-------------+
| ID                                   | Name    | Status    | Size | Attached to |
+--------------------------------------+---------+-----------+------+-------------+
| 27ceef74-3746-48eb-88e0-6a3bf1a97dd6 | volume1 | available |   10 |             |
+--------------------------------------+---------+-----------+------+-------------+


ubuntu@alekhin:~/openstack-on-lxd$ openstack server list
+--------------------------------------+---------------+--------+-------------------------------------+--------+----------+
| ID                                   | Name          | Status | Networks                            | Image  | Flavor   |
+--------------------------------------+---------------+--------+-------------------------------------+--------+----------+
| 4411c938-8a58-4a86-b666-a0e7d041e3f8 | sfeole-bionic | ACTIVE | internal=192.168.20.7, 10.228.22.34 | bionic | m1.small |
+--------------------------------------+---------------+--------+-------------------------------------+--------+----------+


ubuntu@alekhin:~/openstack-on-lxd$ openstack hypervisor list
+----+---------------------+-----------------+---------------+-------+
| ID | Hypervisor Hostname | Hypervisor Type | Host IP       | State |
+----+---------------------+-----------------+---------------+-------+
|  1 | juju-ac9015-20.lxd  | QEMU            | 10.228.22.203 | up    |
+----+---------------------+-----------------+---------------+-------+


On the instance we can see that only the root disk is available. 

ubuntu@sfeole-bionic:~$ sudo fdisk -l
Disk /dev/vda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 4A7C8D71-AC27-4899-89D8-213EAB291FB6

Device      Start      End  Sectors  Size Type
/dev/vda1  206848 20971486 20764639  9.9G Linux filesystem
/dev/vda15   2048   204800   202753   99M EFI System

Partition table entries are not in disk order.
ubuntu@sfeole-bionic:~$ sudo lsblk
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda     252:0    0   10G  0 disk 
├─vda1  252:1    0  9.9G  0 part /
└─vda15 252:15   0   99M  0 part /boot/efi


If then attached the volume to the live-running instance,

ubuntu@alekhin:~/openstack-on-lxd$ openstack server add volume sfeole-bionic volume1
ubuntu@alekhin:~/openstack-on-lxd$ openstack volume list
+--------------------------------------+---------+--------+------+----------------------------------------+
| ID                                   | Name    | Status | Size | Attached to                            |
+--------------------------------------+---------+--------+------+----------------------------------------+
| 27ceef74-3746-48eb-88e0-6a3bf1a97dd6 | volume1 | in-use |   10 | Attached to sfeole-bionic on /dev/vdb  |
+--------------------------------------+---------+--------+------+----------------------------------------+


On the instance we now see the disks attached, 


ubuntu@sfeole-bionic:~$ sudo lsblk
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda     252:0    0   10G  0 disk 
├─vda1  252:1    0  9.9G  0 part /
└─vda15 252:15   0   99M  0 part /boot/efi
vdb     252:16   0   10G  0 disk         <~~~~~~~~~~~~~~~~



ubuntu@sfeole-bionic:~$ sudo fdisk -l
Disk /dev/vda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 4A7C8D71-AC27-4899-89D8-213EAB291FB6

Device      Start      End  Sectors  Size Type
/dev/vda1  206848 20971486 20764639  9.9G Linux filesystem
/dev/vda15   2048   204800   202753   99M EFI System

Partition table entries are not in disk order.


Disk /dev/vdb: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


And we can mount / format and write to the volume. 

ubuntu@sfeole-bionic:~$ sudo mke2fs /dev/vdb
mke2fs 1.44.1 (24-Mar-2018)
Creating filesystem with 2621440 4k blocks and 655360 inodes
Filesystem UUID: 96bcf8d5-31f9-43a3-b663-95202c4b00aa
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Allocating group tables: done                            
Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done 


ubuntu@sfeole-bionic:~$ sudo mount /dev/vdb /mnt/newdisk
ubuntu@sfeole-bionic:/mnt/newdisk$ sudo mkdir foo
ubuntu@sfeole-bionic:/mnt/newdisk$ sudo touch foo/bar.txt
ubuntu@sfeole-bionic:/mnt/newdisk$ ls -la 
total 28
drwxr-xr-x 4 root root  4096 May 17 18:54 .
drwxr-xr-x 3 root root  4096 May 17 18:52 ..
drwxr-xr-x 2 root root  4096 May 17 18:55 foo
drwx------ 2 root root 16384 May 17 18:53 lost+found