• Find using openstack command the volume stuck and the file associated to it:

cinder list --all-tenants

• Determine from the project or the user the volume. We suppose the file is:

/brickOpenstack/cinder-prod/mpathb/volume-2a367882-9bd7-4ee1-a99e-fa491bcaf0af

• Mount the file in a specific path:

mount -t ext4 -o loop,ro,noload /brickOpenstack/cinder-prod/mpathb/volume-2a367882-9bd7-4ee1-a99e-fa491bcaf0af /mnt/cinderDisk

• Create a tar with the contents of the directory just mounted:

cd /mnt/cinderDisk
tar -czvf /root/fileBuild20150715.tgz *

• Copy the file in a secure zone where the user have access, for example in a nfs export.

scp fileBuild20150715.tgz root@cld-storage-01:/data/brickOpenstack/muon-steel/sdb/cloud

• Send a mail to the user and the cloud-support where the file has been copiated.

• To erase the volume from cld-ctrl-01 enter in mysql and execute this query:

mysql> select * from cinder_prod.snapshots where volume_id =
'2a367882-9bd7-4ee1-a99e-fa491bcaf0af';
+---------------------+------------+------------+---------+--------------------------------------+--------------------------------------+----------------------------------+----------------------------------+----------+----------+-------------+--------------+--------------+---------------------+-------------------+-------------------+----------------+
| created_at          | updated_at | deleted_at | deleted |
id                                   |
volume_id                            | user_id                         
| project_id | status   | progress | volume_size | scheduled_at |
display_name | display_description | provider_location |
encryption_key_id | volume_type_id |
+---------------------+------------+------------+---------+--------------------------------------+--------------------------------------+----------------------------------+----------------------------------+----------+----------+-------------+--------------+--------------+---------------------+-------------------+-------------------+----------------+
| 2015-07-14 06:30:40 | NULL       | NULL       |       0 |
38dc71ee-7ebc-4b20-806a-f2c0bd7581d1 |
2a367882-9bd7-4ee1-a99e-fa491bcaf0af | 7210e789b5454b5486783271059628aa
| e9ddc1e36c1348fa812c56f1922371b5 | creating | 0%       |          20 |
NULL         | NULL         | NULL                | NULL              |
NULL              | NULL           |
+---------------------+------------+------------+---------+--------------------------------------+--------------------------------------+----------------------------------+----------------------------------+----------+----------+-------------+--------------+--------------+---------------------+-------------------+-------------------+----------------+
1 row in set (0.00 sec)
 
mysql> delete from cinder_prod.snapshots where volume_id =
'2a367882-9bd7-4ee1-a99e-fa491bcaf0af';
Query OK, 1 row affected (0.01 sec)