<p dir="ltr">It sounds like the extra specs you configured are not selective enough. Can you post up your 3 cinder.conf files from the c-vol nodes, and the commands used to create the volume type, please?</p>
<div class="gmail_quote">On 13 Jul 2015 08:00, "Eduard Matei" <<a href="mailto:eduard.matei@cloudfounders.com">eduard.matei@cloudfounders.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra">Hi,</div><div class="gmail_extra"><br></div><div class="gmail_extra">Forgot to mention, indeed we configured extra_specs: volume_backend_name.</div><div class="gmail_extra">The problem is that a volume of this type can get scheduled on a node where c-vol is not configured with this backend.</div><div class="gmail_extra"><br></div><div class="gmail_extra">F.e.: I have 3 storage nodes (c-vol) and two have the driver configured, the third one doesn't have it; when i try to create a volume of this type, sometimes the c-vol on third node gets the call, and it fails because the driver is not configured.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Maybe we didn't configure something properly, i tried looking at c-sch but i can't figure out why the third node got chosen.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Thanks,</div><div class="gmail_extra"><br></div><div class="gmail_extra">Eduard</div></div>
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