How can I create and attach a volume to an instance

Question

Hi Guys,

I am new in OpenStack. I launched an instance. I tried to install some software but I don't have enough storage. How can I increase storage to my instance?

Thank You

Answer 1

Hi@akhtar,

To create an additional storage in OpenStack, follow the below given steps.

1. Configure the OpenStack Compute and the OpenStack Block Storage services throug /etc/cinder/cinder.conf file.

2. Use the openstack volume create command to create a volume. This command creates an LVM into the volume group (VG) cinder-volumes.

3. Use the openstack server add volume command to attach the volume to an instance. This command creates a unique IQN that is exposed to the compute node.

4. The compute node, which runs the instance, now has an active iSCSI session and new local storage (usually a /dev/sdX disk).

5. Libvirt uses that local storage as storage for the instance. The instance gets a new disk (usually a /dev/vdX disk).

Hope this will help You.

Thank You