Thanks Wes and Josh for your answers. So, for more production-like environments and more tested procedures in case of failures the default replication seems to be the way to go. Perhaps in next release we will add a storage node with EC.
Thanks,
On Fri, Sep 16, 2016 at 7:25 AM, Wes Dillingham <wes_dillingham@xxxxxxxxxxx> wrote:
Erick,You can use erasure coding but it has to be fronted by a replicated cache tier, or so states the documentation, I have never set up this configuration, and always opt to use RBD directly on replicated pools.On Fri, Sep 16, 2016 at 1:15 AM, Josh Durgin <jdurgin@xxxxxxxxxx> wrote:______________________________On 09/16/2016 09:46 AM, Erick Perez - Quadrian Enterprises wrote:
Can someone point me to a thread or site that uses ceph+erasure coding
to serve block storage for Virtual Machines running with Openstack+KVM?
All references that I found are using erasure coding for cold data or
*not* VM block access.
Erasure coding is not supported by RBD currently, since EC pools only support append operations. There's work in progress to make it
possible, by allowing overwrites for EC pools, but it won't be usable
until at earliest Luminous [0].
Josh
[0] http://tracker.ceph.com/issues/14031 _________________
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--Respectfully,Wes DillinghamResearch Computing | Infrastructure EngineerHarvard University | 38 Oxford Street, Cambridge, Ma 02138 | Room 210
---------------------
Erick Perez
Soluciones Tacticas Pasivas/Activas de Inteligencia y Analitica de Datos para Gobiernos
Quadrian Enterprises S.A. - Panama, Republica de Panama
Skype chat: eaperezh
WhatsApp IM: +507-6675-5083
POBOX 0819-12679, Panama
Tel. (507) 391.8174 / (507) 391.8175
WhatsApp IM: +507-6675-5083
POBOX 0819-12679, Panama
Tel. (507) 391.8174 / (507) 391.8175
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