def attach_volume(self, instance_name, device_path, mountpoint): """Attach volume storage to VM instance""" # Before we start, check that the VM exists vm_ref = VMHelper.lookup(self._session, instance_name) if vm_ref is None: raise exception.NotFound( _('Instance %s not found') % instance_name) # NOTE: No Resource Pool concept so far LOG.debug( _("Attach_volume: %(instance_name)s, %(device_path)s," " %(mountpoint)s") % locals()) # Create the iSCSI SR, and the PDB through which hosts access SRs. # But first, retrieve target info, like Host, IQN, LUN and SCSIID vol_rec = VolumeHelper.parse_volume_info(device_path, mountpoint) label = 'SR-%s' % vol_rec['volumeId'] description = 'Disk-for:%s' % instance_name # Create SR sr_ref = VolumeHelper.create_iscsi_storage(self._session, vol_rec, label, description) # Introduce VDI and attach VBD to VM try: vdi_ref = VolumeHelper.introduce_vdi(self._session, sr_ref) except StorageError, exc: LOG.exception(exc) VolumeHelper.destroy_iscsi_storage(self._session, sr_ref) raise Exception( _('Unable to create VDI on SR %(sr_ref)s for' ' instance %(instance_name)s') % locals())
def attach_volume(self, instance_name, device_path, mountpoint): """Attach volume storage to VM instance""" # Before we start, check that the VM exists vm_ref = VMHelper.lookup(self._session, instance_name) if vm_ref is None: raise exception.NotFound(_('Instance %s not found') % instance_name) # NOTE: No Resource Pool concept so far LOG.debug(_("Attach_volume: %(instance_name)s, %(device_path)s," " %(mountpoint)s") % locals()) # Create the iSCSI SR, and the PDB through which hosts access SRs. # But first, retrieve target info, like Host, IQN, LUN and SCSIID vol_rec = VolumeHelper.parse_volume_info(device_path, mountpoint) label = 'SR-%s' % vol_rec['volumeId'] description = 'Disk-for:%s' % instance_name # Create SR sr_ref = VolumeHelper.create_iscsi_storage(self._session, vol_rec, label, description) # Introduce VDI and attach VBD to VM try: vdi_ref = VolumeHelper.introduce_vdi(self._session, sr_ref) except StorageError, exc: LOG.exception(exc) VolumeHelper.destroy_iscsi_storage(self._session, sr_ref) raise Exception(_('Unable to create VDI on SR %(sr_ref)s for' ' instance %(instance_name)s') % locals())
# Introduce SR try: sr_ref = self.introduce_sr(uuid, label, sr_params) LOG.debug(_('Introduced %(label)s as %(sr_ref)s.') % locals()) except self.XenAPI.Failure, exc: LOG.exception(exc) raise StorageError(_('Unable to introduce Storage Repository')) if 'vdi_uuid' in data: vdi_uuid = data['vdi_uuid'] else: vdi_uuid = None # Introduce VDI and attach VBD to VM try: vdi_ref = VolumeHelper.introduce_vdi(self._session, sr_ref, vdi_uuid) except StorageError, exc: LOG.exception(exc) self.forget_sr(uuid) raise Exception( _('Unable to create VDI on SR %(sr_ref)s for' ' instance %(instance_name)s') % locals()) dev_number = VolumeHelper.mountpoint_to_number(mountpoint) try: vbd_ref = VolumeHelper.create_vbd(self._session, vm_ref, vdi_ref, dev_number, False) except self.XenAPI.Failure, exc: LOG.exception(exc) self.forget_sr(uuid) raise Exception(
LOG.exception(exc) raise StorageError(_('Unable to introduce Storage Repository')) vdi_uuid = None target_lun = None if 'vdi_uuid' in data: vdi_uuid = data['vdi_uuid'] elif 'target_lun' in data: target_lun = data['target_lun'] else: vdi_uuid = None # Introduce VDI and attach VBD to VM try: vdi_ref = VolumeHelper.introduce_vdi(self._session, sr_ref, vdi_uuid, target_lun) except StorageError, exc: LOG.exception(exc) self.forget_sr(uuid) raise Exception(_('Unable to create VDI on SR %(sr_ref)s for' ' instance %(instance_name)s') % locals()) dev_number = VolumeHelper.mountpoint_to_number(mountpoint) try: vbd_ref = VolumeHelper.create_vbd(self._session, vm_ref, vdi_ref, dev_number, False) except self.XenAPI.Failure, exc: