Ask Your Question
0

Installing Cinder on Two host Ocata RDO

asked 2017-06-10 15:22:00 -0500

amit-g gravatar image

updated 2017-06-10 15:38:34 -0500

Hello,

I am planning To install OpenStack With Two nodes. I have a question is there a way to install cinder services on two host in OpenStack Ocata or Is it possible. I needed this for my requirement. I shall be provisioning storage to OpenStack node using NFS , that will be hosted on external storage, by specifying backend in /etc/cinder/cinder.conf. Now, I want to have this NFS hosted on the two different nodes, with different IPs , that will be exported to two different storage. I am using Packstack to deploy openstack. is there a way to define cinder hosts in answerfile.

Feel free to request me details if needed.

Thanks.

edit retag flag offensive close merge delete

1 answer

Sort by ยป oldest newest most voted
0

answered 2017-06-10 19:48:58 -0500

updated 2017-06-11 00:41:11 -0500

In other words, you have two NFS backends, right? Declare them in the cinder.conf file. Each backend is managed by its own cinder-volume process, which can run on the same node or two different nodes.

If you want the two NFS servers to look like a single backend, there will normally be a single cinder-volume process. See https://docs.openstack.org/ocata/conf....

Two cinder-volume processes managing the same backend is also possible in an active-passive configuration, where one process is standing by in case the other becomes inaccessible or crashes. Work on active-active is ongoing, afaik. This blog documents the challenges and progress: https://gorka.eguileor.com.

edit flag offensive delete link more

Comments

Thanks for the reply. Is there a way to start cinder-volume process on the other node. I presently , have second node running as compute node. I can run the command cinder-list on the second node but cannot see /etc/cinder.conf on the second node.

amit-g gravatar imageamit-g ( 2017-06-11 12:03:47 -0500 )edit

The fact that there is no cinder.conf shows that cinder-volume is not installed.

Installation instructions for Centos/RHEL: https://docs.openstack.org/ocata/inst....

Bernd Bausch gravatar imageBernd Bausch ( 2017-06-11 18:35:41 -0500 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower

Stats

Asked: 2017-06-10 15:22:00 -0500

Seen: 87 times

Last updated: Jun 11 '17