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<p class="MsoPlainText"><span style="font-family:Courier">Hello,<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">I’ve been trying to get availability zones defined for volumes.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">Everything works fine if I leave the zone at “nova”, all volume types work and backups/snapshots also work.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">ie:<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">+------------------+----------------------------+------+---------+-------+----------------------------+<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| Binary | Host | Zone | Status | State | Updated At |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">+------------------+----------------------------+------+---------+-------+----------------------------+<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-scheduler | cs-os-ctl-001 | nova | enabled | up | 2021-02-05T17:22:51.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-scheduler | cs-os-ctl-003 | nova | enabled | up | 2021-02-05T17:22:54.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-scheduler | cs-os-ctl-002 | nova | enabled | up | 2021-02-05T17:22:56.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-001@rbd-ceph-gp2 | nova | enabled | up | 2021-02-05T17:22:56.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-001@rbd-ceph-st1 | nova | enabled | up | 2021-02-05T17:22:54.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-002@rbd-ceph-gp2 | nova | enabled | up | 2021-02-05T17:22:50.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-003@rbd-ceph-gp2 | nova | enabled | up | 2021-02-05T17:22:55.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-002@rbd-ceph-st1 | nova | enabled | up | 2021-02-05T17:22:57.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-003@rbd-ceph-st1 | nova | enabled | up | 2021-02-05T17:22:54.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-backup | cs-os-ctl-002 | nova | enabled | up | 2021-02-05T17:22:56.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-backup | cs-os-ctl-001 | nova | enabled | up | 2021-02-05T17:22:53.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-backup | cs-os-ctl-003 | nova | enabled | up | 2021-02-05T17:22:58.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">+------------------+----------------------------+------+---------+-------+----------------------------+<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">However, if I apply the following changes:<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">cinder-api.conf<o:p></o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:11.0pt;font-family:Courier">[DEFAULT]</span></span><span style="font-size:11.0pt;font-family:Courier"><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:11.0pt;font-family:Courier">default_availability_zone = not-nova</span></span><span style="font-size:11.0pt;font-family:Courier"><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:11.0pt;font-family:Courier">default_volume_type = ceph-gp2<o:p></o:p></span></span></p>
<p class="p1"><span style="font-size:11.0pt;font-family:Courier">allow_availability_zone_fallback=True<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">cinder-volume.conf<o:p></o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:11.0pt;font-family:Courier">[rbd-ceph-gp2]</span></span><span style="font-size:11.0pt;font-family:Courier"><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><…><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:11.0pt;font-family:Courier">backend_availability_zone = not-nova</span></span><span style="font-size:11.0pt;font-family:Courier"><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><…><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">I’ll get the following<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">+------------------+----------------------------+----------+---------+-------+----------------------------+<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| Binary | Host | Zone | Status | State | Updated At |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">+------------------+----------------------------+----------+---------+-------+----------------------------+<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-scheduler | cs-os-ctl-001 | nova | enabled | up | 2021-02-05T17:22:51.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-scheduler | cs-os-ctl-003 | nova | enabled | up | 2021-02-05T17:22:54.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-scheduler | cs-os-ctl-002 | nova | enabled | up | 2021-02-05T17:22:56.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-001@rbd-ceph-gp2 | not-nova | enabled | up | 2021-02-05T17:22:56.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-001@rbd-ceph-st1 | nova | enabled | up | 2021-02-05T17:22:54.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-002@rbd-ceph-gp2 | not-nova | enabled | up | 2021-02-05T17:22:50.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-003@rbd-ceph-gp2 | not-nova | enabled | up | 2021-02-05T17:22:55.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-002@rbd-ceph-st1 | nova | enabled | up | 2021-02-05T17:22:57.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-volume | cs-os-ctl-003@rbd-ceph-st1 | nova | enabled | up | 2021-02-05T17:22:54.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-backup | cs-os-ctl-002 | nova | enabled | up | 2021-02-05T17:22:56.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-backup | cs-os-ctl-001 | nova | enabled | up | 2021-02-05T17:22:53.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">| cinder-backup | cs-os-ctl-003 | nova | enabled | up | 2021-02-05T17:22:58.000000 |<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">+------------------+----------------------------+----------+---------+-------+----------------------------+<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">At this point, creating new volumes still work and go into the expected ceph pools.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">However, backups no longer work for the cinder-volume that is not nova.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">In the above example, it still works fine for volumes that that were created with type “ceph-gp2” in az “nova”.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">Does not work for volumes that were created with type “ceph-st1” in az “not-nova”. It fails immediately and goes into error state with reason “Service not found for creating backup.”<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">I suspect I need to try to get another set of “cinder-backup” services running in the Zone “not-nova”, but cannot seem to figure out how.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">I’ve scoured the docs on cinder.conf, and if I set default zones in cinder-backup (I’ve tried backend_availability_zone, default_availability_zone, and storage_availability_zone) I cannot seem to get
backups working if the disk it’s backing up is not in az “nova”. The cinder-backup service in volume service list will always show “nova” no matter what I put there.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">Any advice would be appreciated.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">OpenStack Victoria deployed via kolla-ansible<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-family:Courier">Thanks!<o:p></o:p></span></p>
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