<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Thanks guys,<div class=""><br class=""></div><div class="">@Gorka, Is the recommendation one ceph pool per cinder-volume or rather one cinder-volume (in active/passive HA) per ceph cluster? It seems Active/Active HA hasn’t been finished (looking at <a href="https://blueprints.launchpad.net/cinder/+spec/cinder-volume-active-active-support" class="">https://blueprints.launchpad.net/cinder/+spec/cinder-volume-active-active-support</a>) so one cinder-volume would probably become a bottle neck at some point? Or is it going to be mostly idle anyway now that I’ve toggled `rbd_exclusive_cinder_pool = True`?</div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Chris</div><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 18 Mar 2019, at 19:00, Gorka Eguileor <<a href="mailto:geguileo@redhat.com" class="">geguileo@redhat.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On 13/03, Krzysztof Klimonda wrote:<br class=""><blockquote type="cite" class="">Hi,<br class=""><br class="">Just doing a quick sanity check - I can set `rbd_exclusive_cinder_pool = True` (in pike, where the change landed first) even if more than one cinder-volume is writing to the same Ceph pool, right? Assuming nothing writes to the pool outside of cinder, we should be good as far as I understand the code.<br class=""><br class="">-Chris<br class=""></blockquote><br class="">Hi Chris,<br class=""><br class="">It's best not to share your pools, but your assessment is correct<br class="">regarding the rbd_exclusive_cinder_pool configuration option. The code<br class="">ruled by that option will work as expected even when sharing the pool<br class="">between different cinder-volume services.<br class=""><br class="">Cheers,<br class="">Gorka.<br class=""></div></div></blockquote></div><br class=""></div></body></html>