def check_for_setup_error(self):
"""Returns an error if prerequisites aren't met."""
self.common.check_for_setup_error()
bn = "/vshare/config/iscsi/enable"
resp = self.common.vip.basic.get_node_values(bn)
if resp[bn] is not True:
raise exception.ViolinInvalidBackendConfig(
reason=_('iSCSI is not enabled'))
if len(self.gateway_iscsi_ip_addresses_mga) == 0:
raise exception.ViolinInvalidBackendConfig(
reason=_('no available iSCSI IPs on mga'))
if len(self.gateway_iscsi_ip_addresses_mgb) == 0:
raise exception.ViolinInvalidBackendConfig(
reason=_('no available iSCSI IPs on mgb'))
def check_for_setup_error(self):
"""Returns an error if prerequisites aren't met."""
self.common.check_for_setup_error()
if len(self.gateway_fc_wwns) == 0:
raise exception.ViolinInvalidBackendConfig(
reason=_('No FCP targets found'))
def _export_lun(self, volume, connector=None):
"""Generates the export configuration for the given volume.
:param volume: volume object provided by the Manager
:param connector: connector object provided by the Manager
:returns: the LUN ID assigned by the backend
"""
lun_id = ''
v = self.common.vmem_mg
if not connector:
raise exception.ViolinInvalidBackendConfig(
reason=_('No initiators found, cannot proceed'))
LOG.debug(
"Exporting lun %(vol_id)s - initiator wwpns %(i_wwpns)s "
"- target wwpns %(t_wwpns)s.", {
'vol_id': volume['id'],
'i_wwpns': connector['wwpns'],
't_wwpns': self.gateway_fc_wwns
})
try:
lun_id = self.common._send_cmd_and_verify(
v.lun.assign_lun_to_client, self._is_lun_id_ready,
"Assign SAN client successfully",
[volume['id'], connector['host'], "ReadWrite"],
[volume['id'], connector['host']])
except exception.ViolinBackendErr:
LOG.exception(_LE("Backend returned err for lun export."))
raise
except Exception:
raise exception.ViolinInvalidBackendConfig(
reason=_('LUN export failed!'))
lun_id = self._get_lun_id(volume['id'], connector['host'])
LOG.info(_LI("Exported lun %(vol_id)s on lun_id %(lun_id)s."), {
'vol_id': volume['id'],
'lun_id': lun_id
})
return lun_id
def check_for_setup_error(self):
"""Returns an error if prerequisites aren't met."""
if vmemclient is None:
msg = _('vmemclient python library not found')
raise exception.VolumeBackendAPIException(data=msg)
LOG.info("CONCERTO version: %s", self.vmem_mg.version)
if not self._is_supported_vmos_version(self.vmem_mg.version):
msg = _('CONCERTO version is not supported')
raise exception.ViolinInvalidBackendConfig(reason=msg)
def check_for_setup_error(self):
"""Returns an error if prerequisites aren't met."""
if len(self.container) == 0:
msg = _('container is missing')
raise exception.ViolinInvalidBackendConfig(reason=msg)
if not self._is_supported_vmos_version(self.vip.version):
msg = _('VMOS version is not supported')
raise exception.ViolinInvalidBackendConfig(reason=msg)
bn1 = ("/vshare/state/local/container/%s/threshold/usedspace"
"/threshold_hard_val" % self.container)
bn2 = ("/vshare/state/local/container/%s/threshold/provision"
"/threshold_hard_val" % self.container)
ret_dict = self.vip.basic.get_node_values([bn1, bn2])
for node in ret_dict:
# The infrastructure does not support space reclamation so
# ensure it is disabled. When used space exceeds the hard
# limit, snapshot space reclamation begins. Default is 0
# => no space reclamation.
#
if node.endswith('/usedspace/threshold_hard_val'):
if ret_dict[node] != 0:
msg = _('space reclamation threshold is enabled but not '
'supported by Cinder infrastructure.')
raise exception.ViolinInvalidBackendConfig(reason=msg)
# The infrastructure does not support overprovisioning so
# ensure it is disabled. When provisioned space exceeds
# the hard limit, further provisioning is stopped.
# Default is 100 => provisioned space equals usable space.
#
elif node.endswith('/provision/threshold_hard_val'):
if ret_dict[node] != 100:
msg = _('provisioned space threshold is not equal to '
'usable space.')
raise exception.ViolinInvalidBackendConfig(reason=msg)
def _export_lun(self, volume, target, connector):
"""Generates the export configuration for the given volume.
:param volume: volume object provided by the Manager
:param connector: connector object provided by the Manager
:returns: the LUN ID assigned by the backend
"""
lun_id = ''
v = self.common.vmem_mg
LOG.debug(
"Exporting lun %(vol_id)s - initiator iqns %(i_iqns)s "
"- target iqns %(t_iqns)s.", {
'vol_id': volume['id'],
'i_iqns': connector['initiator'],
't_iqns': self.gateway_iscsi_ip_addresses
})
try:
lun_id = self.common._send_cmd_and_verify(
v.lun.assign_lun_to_iscsi_target, self._is_lun_id_ready,
"Assign device successfully", [volume['id'], target],
[volume['id'], connector['host']])
except exception.ViolinBackendErr:
LOG.exception(_LE("Backend returned error for lun export."))
raise
except Exception:
raise exception.ViolinInvalidBackendConfig(
reason=_('LUN export failed!'))
lun_id = self._get_lun_id(volume['id'], connector['host'])
LOG.info(_LI("Exported lun %(vol_id)s on lun_id %(lun_id)s."), {
'vol_id': volume['id'],
'lun_id': lun_id
})
return lun_id
def check_for_setup_error(self):
"""Returns an error if prerequisites aren't met."""
self.common.check_for_setup_error()
if len(self.gateway_iscsi_ip_addresses) == 0:
msg = _('No iSCSI IPs configured on SAN gateway')
raise exception.ViolinInvalidBackendConfig(reason=msg)