def change_multiattach(extra_specs, new_type_extra_specs):
"""Check if a change in multiattach is required for retype.
:param extra_specs: the source type extra specs
:param new_type_extra_specs: the target type extra specs
:return: bool
"""
is_src_multiattach = volume_utils.is_boolean_str(
extra_specs.get('multiattach'))
is_tgt_multiattach = volume_utils.is_boolean_str(
new_type_extra_specs.get('multiattach'))
return is_src_multiattach != is_tgt_multiattach
def create_volume(self, volume):
"""Driver entry point for creating a new volume (Data ONTAP LUN)."""
LOG.debug('create_volume on %s', volume['host'])
# get Data ONTAP volume name as pool name
pool_name = volume_utils.extract_host(volume['host'], level='pool')
if pool_name is None:
msg = _("Pool is not available in the volume host field.")
raise exception.InvalidHost(reason=msg)
extra_specs = na_utils.get_volume_extra_specs(volume)
lun_name = volume['name']
size = int(volume['size']) * units.Gi
metadata = {
'OsType': self.lun_ostype,
'SpaceReserved': self.lun_space_reservation,
'Path': '/vol/%s/%s' % (pool_name, lun_name)
}
qos_policy_group_info = self._setup_qos_for_volume(volume, extra_specs)
qos_policy_group_name = (na_utils.get_qos_policy_group_name_from_info(
qos_policy_group_info))
qos_policy_group_is_adaptive = volume_utils.is_boolean_str(
extra_specs.get('netapp:qos_policy_group_is_adaptive'))
try:
self._create_lun(pool_name, lun_name, size, metadata,
qos_policy_group_name,
qos_policy_group_is_adaptive)
except Exception:
LOG.exception("Exception creating LUN %(name)s in pool %(pool)s.",
{
'name': lun_name,
'pool': pool_name
})
self._mark_qos_policy_group_for_deletion(qos_policy_group_info)
msg = _("Volume %s could not be created.")
raise exception.VolumeBackendAPIException(data=msg %
(volume['name']))
LOG.debug('Created LUN with name %(name)s and QoS info %(qos)s', {
'name': lun_name,
'qos': qos_policy_group_info
})
metadata['Path'] = '/vol/%s/%s' % (pool_name, lun_name)
metadata['Volume'] = pool_name
metadata['Qtree'] = None
handle = self._create_lun_handle(metadata)
self._add_lun_to_table(NetAppLun(handle, lun_name, size, metadata))
model_update = self._get_volume_model_update(volume)
return model_update
def _clone_source_to_destination(self, source, destination_volume):
source_size = source['size']
destination_size = destination_volume['size']
source_name = source['name']
destination_name = destination_volume['name']
extra_specs = na_utils.get_volume_extra_specs(destination_volume)
qos_policy_group_info = self._setup_qos_for_volume(
destination_volume, extra_specs)
qos_policy_group_name = (na_utils.get_qos_policy_group_name_from_info(
qos_policy_group_info))
qos_policy_group_is_adaptive = (
volume_utils.is_boolean_str(
extra_specs.get('netapp:qos_policy_group_is_adaptive')) or
na_utils.is_qos_policy_group_spec_adaptive(qos_policy_group_info))
try:
self._clone_lun(
source_name,
destination_name,
space_reserved=self.lun_space_reservation,
qos_policy_group_name=qos_policy_group_name,
qos_policy_group_is_adaptive=qos_policy_group_is_adaptive)
if destination_size != source_size:
try:
self._extend_volume(destination_volume, destination_size,
qos_policy_group_name)
except Exception:
with excutils.save_and_reraise_exception():
LOG.error("Resizing %s failed. Cleaning volume.",
destination_volume['id'])
self.delete_volume(destination_volume)
return self._get_volume_model_update(destination_volume)
except Exception:
LOG.exception(
"Exception cloning volume %(name)s from source "
"volume %(source)s.", {
'name': destination_name,
'source': source_name
})
self._mark_qos_policy_group_for_deletion(qos_policy_group_info)
msg = _("Volume %s could not be created from source volume.")
raise exception.VolumeBackendAPIException(data=msg %
destination_name)
def _do_qos_for_volume(self, volume, extra_specs, cleanup=True):
qos_policy_group_is_adaptive = volume_utils.is_boolean_str(
extra_specs.get('netapp:qos_policy_group_is_adaptive'))
try:
qos_policy_group_info = na_utils.get_valid_qos_policy_group_info(
volume, extra_specs)
self.zapi_client.provision_qos_policy_group(qos_policy_group_info)
self._set_qos_policy_group_on_volume(volume, qos_policy_group_info,
qos_policy_group_is_adaptive)
except Exception:
with excutils.save_and_reraise_exception():
LOG.error("Setting QoS for %s failed", volume['id'])
if cleanup:
LOG.debug("Cleaning volume %s", volume['id'])
self._cleanup_volume_on_failure(volume)
def _do_qos_for_volume(self, volume, extra_specs, cleanup=True):
try:
qos_policy_group_info = na_utils.get_valid_qos_policy_group_info(
volume, extra_specs)
pool = volume_utils.extract_host(volume['host'], level='pool')
qos_min_support = self.ssc_library.is_qos_min_supported(pool)
qos_policy_group_is_adaptive = (
volume_utils.is_boolean_str(
extra_specs.get('netapp:qos_policy_group_is_adaptive'))
or na_utils.is_qos_policy_group_spec_adaptive(
qos_policy_group_info))
self.zapi_client.provision_qos_policy_group(
qos_policy_group_info, qos_min_support)
self._set_qos_policy_group_on_volume(volume, qos_policy_group_info,
qos_policy_group_is_adaptive)
except Exception:
with excutils.save_and_reraise_exception():
LOG.error("Setting QoS for %s failed", volume['id'])
if cleanup:
LOG.debug("Cleaning volume %s", volume['id'])
self._cleanup_volume_on_failure(volume)
