[ovirt-users] Ovirt & Ceph

Sun Dec 18 17:05:00 UTC 2016

Hi Alessandro,

Right now I have 2 physical server where I have host ovirt these are HP
proliant dl 380  each server 1*500GB SAS & 1TB *4 SAS Disk and 1*500GB SSD.
So right now I have use only one disk which 500GB of SAS for my ovirt to
run on both server. rest are not in use. At present I am using NFS which
coming from mapper to ovirt as storage, go forward we like to use all these
disk as  hyper-converged for ovirt. RH I could see there is KB for using
gluster. But we are looking for Ceph bcoz best pref romance and scale.

[image: Inline image 1]
Regards
Rajat

Hi

Regards,
Rajat Patel

http://studyhat.blogspot.com
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On Sun, Dec 18, 2016 at 8:49 PM, Alessandro De Salvo <
Alessandro.DeSalvo at roma1.infn.it> wrote:

> Hi Rajat,
> sorry but I do not really have a clear picture of your actual setup, can
> you please explain a bit more?
> In particular:
>
> 1) what to you mean by using 4TB for ovirt? In which machines and how do
> you make it available to ovirt?
>
> 2) how do you plan to use ceph with ovirt?
>
> I guess we can give more help if you clarify those points.
> Thanks,
>
>    Alessandro
>
> Il giorno 18 dic 2016, alle ore 17:33, rajatjpatel <rajatjpatel at gmail.com>
> ha scritto:
>
> Great, thanks! Alessandro ++ Yaniv ++
>
> What I want to use around 4 TB of SAS disk for my Ovirt (which going to be
> RHV4.0.5 once POC get 100% successful, in fact all product will be RH )
>
> I had done so much duckduckgo for all these solution and use lot of
> reference from ovirt.org & access.redhat.com for setting up a Ovirt
> engine and hyp.
>
> We dont mind having more guest running and creating ceph block storage and
> which will be presented to ovirt as storage. Gluster is not is use right
> now bcoz we have DB will be running on guest.
>
> Regard
> Rajat
>
> On Sun, Dec 18, 2016 at 8:21 PM Alessandro De Salvo <
> Alessandro.DeSalvo at roma1.infn.it> wrote:
>
>> 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 at redhat.com> ha
>> scritto:
>>
>>
>>
>> On Sun, Dec 18, 2016 at 3:29 PM, rajatjpatel <rajatjpatel at 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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>>
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>> --
>
> Sent from my Cell Phone - excuse the typos & auto incorrect
>
>
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