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= Notes OpenStack - Cinder volumes

<code bash>
losetup -f --show  /opt/stack/data/stack-volumes-*
</code>


Créer un volume puis effacer un volume pour tester.
<code bash>
openstack volume create --size 20 plop
openstack volume delete plop
</code>


== Pb

=== Pb1 

<code ->
stack@oslack1:~/devstack$ openstack volume service list
+------------------+---------------------+------+---------+-------+----------------------------+
| Binary           | Host                | Zone | Status  | State | Updated At                 |
+------------------+---------------------+------+---------+-------+----------------------------+
| cinder-volume    | oslack1@lvmdriver-1 | nova | enabled | down  | 2019-04-05T15:22:35.771203 |
| cinder-scheduler | oslack1             | nova | enabled | up    | 2019-04-05T15:23:16.619859 |
+------------------+---------------------+------+---------+-------+----------------------------+

stack@oslack1:~/devstack$ openstack volume service set --enable oslack1@lvmdriver-1 cinder-volume
stack@oslack1:~/devstack$ openstack volume service list
+------------------+---------------------+------+---------+-------+----------------------------+
| Binary           | Host                | Zone | Status  | State | Updated At                 |
+------------------+---------------------+------+---------+-------+----------------------------+
| cinder-volume    | oslack1@lvmdriver-1 | nova | enabled | down  | 2019-04-05T15:23:24.881781 |
| cinder-scheduler | oslack1             | nova | enabled | up    | 2019-04-05T15:23:26.621806 |
+------------------+---------------------+------+---------+-------+----------------------------+
</code>

Solution 

''/etc/cinder/cinder.conf''
<code ini>
[lvmdriver-1]
#volume_group = stack-volumes-lvmdriver-1
volume_group = ubuntu-vg
</code>

<code bash>
systemctl restart  'devstack@c-*'
</code>


=== Pb2

Impossible d'effacer un volume
Le pb venait que le volume était en état "reserved"

<code bash>
openstack volume set --state available 671c5fc7-00bd-4452-be82-645e10d59236
openstack volume delete 671c5fc7-00bd-4452-be82-645e10d59236
</code>