openstack/cinder
Code Issues Proposed changes

Dell SC: create_cloned_volume didn't honor size

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If the volume being created was larger than the cloned volume
the new volume was not being resized.

Change-Id: I43b9da93d8770a5630f7a6b2af2c164c3ed1f4ec
Closes-Bug: 1554741
This commit is contained in:
Tom Swanson 2016-03-08 16:14:42 -06:00
parent 44d00c5efa
commit c55dabf358
2 changed files with 86 additions and 6 deletions
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83
cinder/tests/unit/test_dellsc.py
View File

@ -1187,8 +1187,8 @@ class DellSCSanISCSIDriverTestCase(test.TestCase):
mock_close_connection,
mock_open_connection,
mock_init):
volume = {'id': self.volume_name + '_clone'}
src_vref = {'id': self.volume_name}
volume = {'id': self.volume_name + '_clone', 'size': 1}
src_vref = {'id': self.volume_name, 'size': 1}
ret = self.driver.create_cloned_volume(volume, src_vref)
mock_create_cloned_volume.assert_called_once_with(
self.volume_name + '_clone',
@ -1197,6 +1197,41 @@ class DellSCSanISCSIDriverTestCase(test.TestCase):
self.assertTrue(mock_find_volume.called)
self.assertEqual({}, ret)
@mock.patch.object(dell_storagecenter_iscsi.DellStorageCenterISCSIDriver,
'_create_replications',
return_value={})
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'find_sc',
return_value=12345)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'find_volume',
return_value=VOLUME)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'create_cloned_volume',
return_value=VOLUME)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'expand_volume',
return_value=VOLUME)
def test_create_cloned_volume_expand(self,
mock_expand_volume,
mock_create_cloned_volume,
mock_find_volume,
mock_find_sc,
mock_create_replications,
mock_close_connection,
mock_open_connection,
mock_init):
volume = {'id': self.volume_name + '_clone', 'size': 2}
src_vref = {'id': self.volume_name, 'size': 1}
ret = self.driver.create_cloned_volume(volume, src_vref)
mock_create_cloned_volume.assert_called_once_with(
self.volume_name + '_clone',
self.VOLUME,
None)
self.assertTrue(mock_find_volume.called)
self.assertEqual({}, ret)
self.assertTrue(mock_expand_volume.called)
@mock.patch.object(dell_storagecenter_iscsi.DellStorageCenterISCSIDriver,
'_create_replications',
return_value={})
@ -1227,6 +1262,41 @@ class DellSCSanISCSIDriverTestCase(test.TestCase):
volume, src_vref)
self.assertTrue(mock_delete_volume.called)
@mock.patch.object(dell_storagecenter_iscsi.DellStorageCenterISCSIDriver,
'_create_replications',
return_value={})
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'find_sc',
return_value=12345)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'find_volume',
return_value=VOLUME)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'create_cloned_volume',
return_value=VOLUME)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'delete_volume')
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'expand_volume')
def test_create_cloned_volume_expand_failed(self,
mock_expand_volume,
mock_delete_volume,
mock_create_cloned_volume,
mock_find_volume,
mock_find_sc,
mock_create_replications,
mock_close_connection,
mock_open_connection,
mock_init):
volume = {'id': self.volume_name + '_clone', 'size': 2}
src_vref = {'id': self.volume_name, 'size': 1}
mock_create_replications.side_effect = (
exception.VolumeBackendAPIException(data='abc'))
self.assertRaises(exception.VolumeBackendAPIException,
self.driver.create_cloned_volume,
volume, src_vref)
self.assertTrue(mock_delete_volume.called)
@mock.patch.object(dell_storagecenter_api.StorageCenterApi,
'delete_volume')
@mock.patch.object(dell_storagecenter_iscsi.DellStorageCenterISCSIDriver,
@ -1251,8 +1321,8 @@ class DellSCSanISCSIDriverTestCase(test.TestCase):
mock_init):
mock_create_replications.side_effect = (
exception.VolumeBackendAPIException(data='abc'))
volume = {'id': self.volume_name + '_clone'}
src_vref = {'id': self.volume_name}
volume = {'id': self.volume_name + '_clone', 'size': 1}
src_vref = {'id': self.volume_name, 'size': 1}
self.assertRaises(exception.VolumeBackendAPIException,
self.driver.create_cloned_volume,
volume, src_vref)
@ -1282,8 +1352,9 @@ class DellSCSanISCSIDriverTestCase(test.TestCase):
mock_open_connection,
mock_init):
volume = {'id': self.volume_name + '_clone',
'consistencygroup_id': 'guid'}
src_vref = {'id': self.volume_name}
'consistencygroup_id': 'guid',
'size': 1}
src_vref = {'id': self.volume_name, 'size': 1}
self.driver.create_cloned_volume(volume, src_vref)
mock_create_cloned_volume.assert_called_once_with(
self.volume_name + '_clone',

9
cinder/volume/drivers/dell/dell_storagecenter_common.py
View File

@ -440,6 +440,15 @@ class DellCommonDriver(driver.ConsistencyGroupVD, driver.ManageableVD,
# Create our volume
scvolume = api.create_cloned_volume(
volume_name, srcvol, replay_profile_string)
# Extend Volume
if scvolume and volume['size'] > src_vref['size']:
LOG.debug("Resize the new volume to %s.",
volume['size'])
scvolume = api.expand_volume(scvolume,
volume['size'])
# If either of those didn't work we bail.
if scvolume is None:
raise exception.VolumeBackendAPIException(
message=_('Unable to create volume '