Skip to content

How to delete a volume that returns error: "Volume still has 1 dependent snapshots. (HTTP 400)"

If you create a volume and then a snapshot of the volume you will not be able to delete the volume before deleting the snapshot. This is what usually happens if you do it from the command line:

Create a volume

openstack volume create test --size 10
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| attachments         | []                                   |
| availability_zone   | nova                                 |
| bootable            | false                                |
| consistencygroup_id | None                                 |
| created_at          | 2016-07-25T10:27:14.699904           |
| description         | None                                 |
| encrypted           | False                                |
| id                  | 403bbc15-1da8-4800-8b94-1b38f3b5017e |
| migration_status    | None                                 |
| multiattach         | False                                |
| name                | test                                 |
| properties          |                                      |
| replication_status  | disabled                             |
| size                | 10                                   |
| snapshot_id         | None                                 |
| source_volid        | None                                 |
| status              | creating                             |
| type                | None                                 |
| user_id             | anmess                               |
+---------------------+--------------------------------------+

Create a snapshot of the volume

openstack snapshot create --name test-snap test
+-------------+--------------------------------------+
| Field       | Value                                |
+-------------+--------------------------------------+
| created_at  | 2016-07-25T10:27:23.569200           |
| description | None                                 |
| id          | bdb64d1c-2803-4f09-820a-4e3769889804 |
| name        | test-snap                            |
| properties  |                                      |
| size        | 10                                   |
| status      | creating                             |
| volume_id   | 403bbc15-1da8-4800-8b94-1b38f3b5017e |
+-------------+--------------------------------------+

Try to delete the volume

openstack volume delete test
Invalid volume: Volume still has 1 dependent snapshots. (HTTP 400) (Request-ID: req-356dcc18-1b77-47bd-9f63-ac4d876af532)

To solve this issue you need to delete the snapshot first.

Delete the dependent snapshot

openstack snapshot delete test-snap

Delete the volume

openstack volume delete test

Last update: July 30, 2021