Open Stack

Thanks for the information Mike, I would initially test with GlusterFS.

On Thu, Sep 18, 2014 at 8:19 PM, Mike Smith <mismith at overstock.com> wrote:

>  We run GFS2 for our shared instances volume and it has worked very well
> for us.  We leverage CLVM and fiber connected SAN LUNs on the backend in
> order to do that.  It's great for live migrations, etc.
>
>  I'm told that GFS2 performance degrades significantly once you mount the
> filesystem on more than about 16 nodes.   We are planning on moving to
> GlusterFS or Ceph in the future for a couple of reasons:
>
>  - Ceph and Cluster scale-out more linearly
> - We want to use more commodity-type hardware in remote data centers
> - We don't any want cluster/quorum related issues to take down the shared
> storage
>
>
>
>  Mike Smith
> Principal Engineer, Website Systems
> Overstock.com
>
>
>   ------------------------------
> *From:* yasith tharindu [yasithucsc at gmail.com]
> *Sent:* Thursday, September 18, 2014 4:06 AM
> *To:* Robert van Leeuwen
> *Cc:* openstack at lists.openstack.org
> *Subject:* Re: [Openstack] What is the best network architecture for
> Openstack
>
>   Thanks for the reply Robert;
>
>  Does GFS is stable now ? Are there Openstack production setups runs with
> GFS?
>
> On Thu, Sep 18, 2014 at 12:17 PM, Robert van Leeuwen <
> Robert.vanLeeuwen at spilgames.com> wrote:
>
>> > We have four servers and one SAS data store for the openstack
>> deployment. All servers have SAS
>> > interfaces. We are going to put one controller node and 3 compute
>> nodes. We need to run the system with
>> > live migration enabled.
>> >
>> > Is there are other options available to use the Compute nodes SAS
>> interfaces too but live migration needed also
>> > enabled.
>>
>> The only way to directly access the same data on the SAS data store would
>> be by running a clustered filesystem. (e.g. GFS)
>> Clustered filesystems are quite a bit more complex then regular
>> filesystems so I'm not sure if that would be the preferred route though.
>>
>>
>> Cheers,
>> Robert van Leeuwen
>>
>>
>>
>>
>>
>>
>>
>
>
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