<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1425868016302_1556822">Thanks, Matt -- this is very helpful.</div><div id="yui_3_16_0_1_1425868016302_1556824"><br></div><div dir="ltr" id="yui_3_16_0_1_1425868016302_1556767">What about storage? It seems like Ceph as the storage back-end provides much better data protection</div><div id="yui_3_16_0_1_1425868016302_1556826" dir="ltr">than the alternatives. Did you sense a movement towards adapting Ceph or are people clinging to LVM,</div><div dir="ltr">etc? <br></div><div id="yui_3_16_0_1_1425868016302_1556807"><span></span></div><br> <blockquote id="yui_3_16_0_1_1425868016302_1556721" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div id="yui_3_16_0_1_1425868016302_1556720" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div id="yui_3_16_0_1_1425868016302_1556719" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1425868016302_1556718" dir="ltr"> <hr id="yui_3_16_0_1_1425868016302_1556751" size="1"> <font id="yui_3_16_0_1_1425868016302_1556749" face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Matt Kassawara <mkassawara@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> "openstack-docs@lists.openstack.org" <openstack-docs@lists.openstack.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, March 12, 2015 1:44 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [OpenStack-docs] [ha-guide] Observations from mid-cycle ops meetup<br> </font> </div> <div id="yui_3_16_0_1_1425868016302_1556723" class="y_msg_container"><br><div id="yiv3648734377"><div id="yui_3_16_0_1_1425868016302_1556725" dir="ltr">I went to the mid-cycle ops meeting for a better idea of the HA methods implemented by operators. Most seem to agree on Galera with MariaDB/MySQL, RabbitMQ active-passive/active-active (some using a load balancer and others configuring services to use each node directly), Memcached active/active (via Oslo hash synchronization), and OpenStack APIs via hardware or HAProxy load balancer. On the other hand, networking drifted all over the place. Some people live and die by nova-net and won't move to neutron until it 100% mirrors the multi-host functionality with fixed/floating IP addresses, others use neutron but only with provider networks, most don't quite trust DVR/L3HA yet, and a few implement custom code with nova-net or neutron. For networking in the HA guide, I mostly suggest referencing the networking guide scenarios rather than suggesting a particular architecture. However, we should also mention them in the introduction somewhere because different architectures may impact the minimum number and type of nodes.</div></div><br>_______________________________________________<br>OpenStack-docs mailing list<br><a ymailto="mailto:OpenStack-docs@lists.openstack.org" href="mailto:OpenStack-docs@lists.openstack.org">OpenStack-docs@lists.openstack.org</a><br><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-docs" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-docs</a><br><br><br></div> </div> </div> </blockquote> </div></body></html>