Thanks to OpenStack Cinder you can attach additional disk space to your instance. This guide will show you how to use this feature.
Create a volume
On Cinder a drive is called a volume. The first thing you need to do is to create a new volume in the region you want. To do that go to OpenStack Horizon in the volumes area.
Create Volume and a form asking a few parameters will appear. Select
the type of volume you need, its name, size,
nova as availability zone and
empty volume. Finally you can create the volume.
Attach the volume to an instance
From the volumes list click on
Edit Attachments to attach a volume
to a running instance.
Select the instance on which you want extra disk space and click on
You will see to which device your volume is attached to. This device will be accessible directly into your instance.
Format and mount the volume
Once the volume is attached to your instance you need to format the device and mount it. This operations are different if you use GNU/Linux or Windows instances.
From a shell issue the
lsblk command, this will list the block devices you
admin@mariadb:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 253:0 0 160G 0 disk └─vda1 253:1 0 160G 0 part / vdb 253:16 0 9.8T 0 disk
/dev/vda is the root disk of your system. It has one partition
/dev/vda1 filling all the space. Then you can see
/dev/vdb which is
the volume you just attached.
In order to be able to use it you need to format it and mount it somewhere.
This is easily done with:
admin@mariadb:~$ sudo mkfs.ext4 /dev/vdb Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done admin@mariadb:~$ sudo mkdir /mnt/database admin@mariadb:~$ sudo mount /dev/vdb /mnt/database/ admin@mariadb:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 158G 1.1G 150G 1% / /dev/vdb 9.7T 38M 9.3T 1% /mnt/database
You can now store your files on the directory
Microsoft Windows Server
Right click on the Windows button and select
There you can right click on
Disk 1 and select
Online, then again select
New Simple Volume. Select the options you want, the default selected one are
Once the formatting is done, a new drive will be available on your instance.