Hi,

having a 3-node ceph cluster is the bare minimum you can have to make it working, unless you want to have just a replica-2 mode, which is not safe.

It's not true that ceph is not easy to configure, you might use very easily ceph-deploy, have puppet configuring it or even run it in containers. Using docker is in fact the easiest solution, it really requires 10 minutes to make a cluster up. I've tried it both with jewel (official containers) and kraken (custom containers), and it works pretty well.

The real problem is not creating and configuring a ceph cluster, but using it from ovirt, as it requires cinder, i.e. a minimal setup of openstack. We have it and it's working pretty well, but it requires some work. For your reference we have cinder running on an ovirt VM using gluster.

Cheers,

   Alessandro 

Il giorno 18 dic 2016, alle ore 17:07, Yaniv Kaul <ykaul@redhat.com> ha scritto:

On Sun, Dec 18, 2016 at 3:29 PM, rajatjpatel <rajatjpatel@gmail.com> wrote:

​Dear Team,

We are using Ovirt 4.0 for POC what we are doing I want to check with all Guru's Ovirt.

We have 2 hp proliant dl 380 with 500GB SAS & 1TB *4 SAS Disk and 500GB SSD.

Waht we are done we have install ovirt hyp on these h/w and we have physical server where we are running our manager for ovirt. For ovirt hyp we are using only one 500GB of one HDD rest we have kept for ceph, so we have 3 node as guest running on ovirt and for ceph. My question you all is what I am doing is right or wrong.

I think Ceph requires a lot more resources than above. It's also a bit more challenging to configure. I would highly recommend a 3-node cluster with Gluster.

Y.

 

Regards

Rajat​

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