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Openstack installation (storage problem)

asked 2019-10-08 14:33:34 -0500

anonymous user



I need advice about the installation of OpenStack. I have a few machines that have a few large HDD and a lot of memory. I want to set up Openstack on it, but I want to use HDD to create one large storage and use existing bare metals to provide VM. I understand that it's possible, but I'm wondering what is the best practice in this case? I couldn't find anywhere what file system should I use: CEPH, glusterfs or something else?

Best regards

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According to the survey (select Deployment Decisions), Ceph is the most popular storage solution in the OpenStack world. You need several drives per server. Note that Ceph is not a filesystem, but more something like a hugely scalable disk array.

Bernd Bausch gravatar imageBernd Bausch ( 2019-10-08 21:48:07 -0500 )edit

GlusterFS is a massively sized, distributed filesystem. At some point, its OpenStack support was removed; I don't know what its status is.

Check for other block storage solutions.

Bernd Bausch gravatar imageBernd Bausch ( 2019-10-08 21:51:41 -0500 )edit

What do you mean by "use existing bare metals to provide VM"?

Bernd Bausch gravatar imageBernd Bausch ( 2019-10-08 21:55:18 -0500 )edit

I want to use the same machine for CEPH and VMs. I think about disadvantages for that solution...

Morbious gravatar imageMorbious ( 2019-10-09 05:39:00 -0500 )edit

Probably not ideal. Ceph does require some CPU and memory, which would interfere with the VMs. For a production system, I would absolutely recommend against it. Otherwise, I would at least do the utmost to separate the Ceph and VM filesystems from each other.

Bernd Bausch gravatar imageBernd Bausch ( 2019-10-09 05:47:20 -0500 )edit

2 answers

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answered 2019-10-11 02:38:00 -0500

You can check this link ( to install swift openstack

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answered 2019-10-13 09:31:29 -0500

vblando gravatar image

You can actually install both nova-compute and ceph on a node, I have tried it myself but not on a production setting, it works, but I would not recommend it because you may face some performance issue in the future, I would suggest you install a separate ceph cluster and do an RBD-backed or Boot-from-volume VM deployment.

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Asked: 2019-10-08 14:33:34 -0500

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Last updated: Oct 13 '19