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how to add storage node in running openstack environment

asked 2019-09-25 05:48:49 -0500

roadbl0ck gravatar image


I want to increase my openstack storage. Is there any way to add storage node or anything else? My setup is one control node and one compute node. I have created separate cinder-volume VG in current setup.

Thank you

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answered 2019-09-25 07:40:27 -0500

Assuming that you installed your cloud manually and you want to add an LVM backend to Cinder: Install the fundamental services (database, rabbit, ...), then cinder-volume.

If you used an automatic deployment method like Packstack or Kolla, I suppose the above instructions would still work, but there may be other ways to accomplish this.

Once the storage node is up and running, declare the new backend in the cinder.conf file on the controller (instructions).

Instead of LVM, you can also configure an NFS server as a Cinder backend, and of course a long list of disk arrays.

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Thank you for the quick response. Yeah, I had install OpenStack using RDO packstack. Is it a good idea to run packstack file again with adding storage node IP and exclude existing controller node? Instead of using LVM should I able to use new VG? I am not sure about NFS server but I will look into.

roadbl0ck gravatar imageroadbl0ck ( 2019-09-25 07:50:13 -0500 )edit

I don't know whether you can add a storage node using the answer file. However, you can add a compute node. Why don't you just include Cinder Volume in that compute node? If you don't want it to run instances, you can still disable it later.

Bernd Bausch gravatar imageBernd Bausch ( 2019-09-26 03:58:34 -0500 )edit

Sorry for the late response. Yeah, that would be a good idea. I will try it.

roadbl0ck gravatar imageroadbl0ck ( 2019-10-11 14:53:00 -0500 )edit

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Asked: 2019-09-25 05:48:49 -0500

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Last updated: Sep 25 '19