The cinder.volume.qos_specs
Module¶
The QoS Specs Implementation
-
associate_qos_with_type
(context, specs_id, type_id)¶ Associate qos_specs with volume type.
Associate target qos specs with specific volume type.
Parameters: - specs_id – qos specs ID to associate with
- type_id – volume type ID to associate with
Raises: - VolumeTypeNotFound – if volume type doesn’t exist
- QoSSpecsNotFound – if qos specs doesn’t exist
- InvalidVolumeType – if volume type is already associated with qos specs other than given one.
- QoSSpecsAssociateFailed – if there was general DB error
-
create
(context, name, specs=None)¶ Creates qos_specs.
- :param specs dictionary that contains specifications for QoS
- e.g. {‘consumer’: ‘front-end’,
- ‘total_iops_sec’: 1000, ‘total_bytes_sec’: 1024000}
-
delete
(context, qos_specs_id, force=False)¶ Marks qos specs as deleted.
‘force’ parameter is a flag to determine whether should destroy should continue when there were entities associated with the qos specs. force=True indicates caller would like to mark qos specs as deleted even if there was entities associate with target qos specs. Trying to delete a qos specs still associated with entities will cause QoSSpecsInUse exception if force=False (default).
-
delete_keys
(context, qos_specs_id, keys)¶ Marks specified key of target qos specs as deleted.
-
disassociate_all
(context, specs_id)¶ Disassociate qos_specs from all entities.
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disassociate_qos_specs
(context, specs_id, type_id)¶ Disassociate qos_specs from volume type.
-
get_all_specs
(context, filters=None, marker=None, limit=None, offset=None, sort_keys=None, sort_dirs=None)¶ Get all non-deleted qos specs.
-
get_associations
(context, qos_specs_id)¶ Get all associations of given qos specs.
-
get_qos_specs
(ctxt, spec_id)¶ Retrieves single qos specs by id.
-
update
(context, qos_specs_id, specs)¶ Update qos specs.
Parameters: specs – - dictionary that contains key/value pairs for updating
- existing specs.
- e.g. {‘consumer’: ‘front-end’,
- ‘total_iops_sec’: 500, ‘total_bytes_sec’: 512000,}