volumes are smaller then from flavor described
hi there
I'm evaluating Debian 9 with OpenStack newton. By creating a new instance, currently I have got the issue that that volumes in cinder are smaller then in the flavor described
openstack flavor show 33ebcd82-7637-4f9f-9939-d32b9804309d
+----------------------------+--------------------------------------+
| Field | Value |
+----------------------------+--------------------------------------+
| OS-FLV-DISABLED:disabled | False |
| OS-FLV-EXT-DATA:ephemeral | 0 |
| access_project_ids | None |
| disk | 3 |
| id | 33ebcd82-7637-4f9f-9939-d32b9804309d |
| name | small tiny fart |
| os-flavor-access:is_public | True |
| properties | hw:serial_port_count='1' |
| ram | 256 |
| rxtx_factor | 1.0 |
| swap | |
| vcpus | 1 |
+----------------------------+--------------------------------------+
The disk inside the flavor should be 3 GB. The stored image inside glance must be minimal 2 GB. But by creating an instance, they would on Cinder a new volume with only 1 GB created.
That tells my that should be the reason inside my nova-compute.log about why I get "Block Device Mapping is Invalid" messages. But how I could fix it? So that volumes has got by creating a new instance, the right size they I have described inside the flavor in nova before?
2017-08-28 13:55:31.362 4711 WARNING cinder.volume.manager [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Task 'cinder.volume.flows.manager.create_volume.CreateVolumeFromSpecTask;volume:create' (5ea61113-f94e-4bdf-8251-bfc47cd02688) transitioned into state 'REVERTED' from state 'REVERTING'
2017-08-28 13:55:31.365 4711 WARNING cinder.volume.manager [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Task 'cinder.volume.flows.manager.create_volume.NotifyVolumeActionTask;volume:create, create.start' (54255bab-9a5b-47c7-bab7-7230e87bc749) transitioned into state 'REVERTED' from state 'REVERTING'
2017-08-28 13:55:31.368 4711 WARNING cinder.volume.manager [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Task 'cinder.volume.flows.manager.create_volume.ExtractVolumeSpecTask;volume:create' (1ae4efbc-e6c8-466e-aee8-9b6658497d34) transitioned into state 'REVERTED' from state 'REVERTING'
2017-08-28 13:55:31.426 4711 ERROR cinder.volume.flows.manager.create_volume [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Volume 8fac3a37-ea33-4132-bf87-de529d06ebb0: create failed
2017-08-28 13:55:31.428 4711 WARNING cinder.volume.manager [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Task 'cinder.volume.flows.manager.create_volume.OnFailureRescheduleTask;volume:create' (5a994d5d-a46e-4992-92d3-dddb4e4d120c) transitioned into state 'REVERTED' from state 'REVERTING'
2017-08-28 13:55:31.431 4711 WARNING cinder.volume.manager [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Task 'cinder.volume.flows.manager.create_volume.ExtractVolumeRefTask;volume:create' (3f7537aa-0108-4170-80c9-a6e5c961c9f2) transitioned into state 'REVERTED' from state 'REVERTING'
2017-08-28 13:55:31.434 4711 WARNING cinder.volume.manager [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Flow 'volume_create_manager' (0e3dcce8-52ec-45ed-af47-fbecae5c2c53) transitioned into state 'REVERTED' from state 'RUNNING'
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server [req-51eb571e-82f1-45f1-bf9b-4c1b3001462d c297cd174a8543c4a42222938c04113d 6ffdbc39228844d5bb12faae0901cb13 - default default] Exception during message handling
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 133, in _process_incoming
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 150, in dispatch
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
2017-08-28 13:55:31.435 4711 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line ...
Flavors size ephemeral storage, not volumes. How did you launch the instance, and where does the 1GB volume come from?
Seems you are trying to 'boot from volume' but you are using an image of 2 GB and you are defining a 1GB boot volume. When booting from volume a new Cinder volume is created starting from the chosen Glance image and then it is used as boot volume. It should be bigger than the image size!
Hi
I didn't have defined anything. Only the flavor. How I could configure the size for the boot-volume in cinder by creating a new VM. By using the CLI or Horizon for endusers.
cheers Darko
To boot from a volume, you can create a bootable volume and specify its size. E.g:
The UI must be analogous.
Alternatively, there are options in
nova bootoropenstack server create.