def disconnect_volume(self, connection_properties, device_info,
force=False, ignore_errors=False):
tmp_file_path = device_info['path']
if not os.path.exists(tmp_file_path):
msg = _("Vmdk: %s not found.") % tmp_file_path
raise exception.NotFound(message=msg)
session = None
try:
# We upload the temporary file to vCenter server only if it is
# modified after connect_volume.
if os.path.getmtime(tmp_file_path) > device_info['last_modified']:
self._load_config(connection_properties)
session = self._create_session()
backing = vim_util.get_moref(connection_properties['volume'],
"VirtualMachine")
# Currently there is no way we can restore the volume if it
# contains redo-log based snapshots (bug 1599026).
if self._snapshot_exists(session, backing):
msg = (_("Backing of volume: %s contains one or more "
"snapshots; cannot disconnect.") %
connection_properties['volume_id'])
raise exception.BrickException(message=msg)
ds_ref = vim_util.get_moref(
connection_properties['datastore'], "Datastore")
dc_ref = vim_util.get_moref(
connection_properties['datacenter'], "Datacenter")
vmdk_path = connection_properties['vmdk_path']
self._disconnect(
backing, tmp_file_path, session, ds_ref, dc_ref, vmdk_path)
finally:
os.remove(tmp_file_path)
if session:
session.logout()
def _is_nvme_available(self, nvme_name):
nvme_name_pattern = "/dev/%sn[0-9]+" % nvme_name
for nvme_dev_name in self._get_nvme_devices():
if re.match(nvme_name_pattern, nvme_dev_name):
return True
else:
LOG.error("Failed to find nvme device")
raise exception.NotFound()
def _get_fc_hba_wwn_for_port(self, port_wwn):
fc_hba_ports = self._fc_utils.get_fc_hba_ports()
for port in fc_hba_ports:
if port_wwn.upper() == port['port_name']:
return port['node_name']
err_msg = _("Could not find any FC HBA port "
"having WWN '%s'.") % port_wwn
raise exception.NotFound(err_msg)
def extend_volume(self, connection_properties):
volume_paths = self.get_volume_paths(connection_properties)
if not volume_paths:
err_msg = _("Could not find the disk. Extend failed.")
raise exception.NotFound(err_msg)
device_path = volume_paths[0]
device_number = self._diskutils.get_device_number_from_device_name(
device_path)
self._diskutils.refresh_disk(device_number)
def connect_volume(self, connection_properties):
"""Discover and attach the volume.
:param connection_properties: The dictionary that describes all
of the target volume attributes.
connection_properties must include:
nqn - NVMe subsystem name to the volume to be connected
target_port - NVMe target port that hosts the nqn sybsystem
target_portal - NVMe target ip that hosts the nqn sybsystem
:type connection_properties: dict
:returns: dict
"""
if connection_properties.get('vol_uuid'): # compatibility
return self._connect_volume_replicated(connection_properties)
current_nvme_devices = self._get_nvme_devices()
device_info = {'type': 'block'}
conn_nqn = connection_properties['nqn']
target_portal = connection_properties['target_portal']
port = connection_properties['target_port']
nvme_transport_type = connection_properties['transport_type']
host_nqn = connection_properties.get('host_nqn')
cmd = [
'nvme', 'connect', '-t', nvme_transport_type, '-n', conn_nqn, '-a',
target_portal, '-s', port
]
if host_nqn:
cmd.extend(['-q', host_nqn])
self._try_connect_nvme(cmd)
try:
self._wait_for_blk(nvme_transport_type, conn_nqn, target_portal,
port)
except exception.NotFound:
LOG.error("Waiting for nvme failed")
self._try_disconnect_volume(conn_nqn, True)
raise exception.NotFound(message="nvme connect: NVMe device "
"not found")
path = self._get_device_path(current_nvme_devices)
device_info['path'] = path[0]
LOG.debug("NVMe device to be connected to is %(path)s",
{'path': path[0]})
return device_info
