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Creating volumes In OpenStack

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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. They are block storage devices that you attach to instances to enable persistent storage. You can attach a volume to a running instance, or detach a volume and attach it to another instance at any time.

Now that we have created a Cinder volume service, we can create volumes for use by our instances. We do this under our Ubuntu client using one of the Cinder Client tool, aka the python-Cinderclient, so we are creating volumes specific to our tenancy (project).

Getting started

To begin with, ensure that you are logged into your Ubuntu client that has access to the Cinder Client tools. These packages can be installed using the following command:

How to do it…

Carry out the following to create a volume using Cinder Client:

     1. First, create the volume that we will attach to our instance.

     2. On completion, the command returns the following output:

How it works…

Creating Cinder-volumes for use within our project, cookbook, is very straightforward.

With Cinder Client, we use the create option with the following syntax:

Here, volume_name can be any arbitrary name with no spaces.

We can see the actual LVM volumes on c inder-volumes, using the usual LVM tools as follows:


 

Related Pages:

Openstack Training
Openstack Tutorial

Sample Resume:
Openstack Sample Resumes

Interview Questions:
Openstack Interview Questions


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