def detach_volume(self, instance_name, mountpoint):
"""Detach 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.InstanceNotFound(instance_id=instance_name)
# Detach VBD from VM
LOG.debug(_("Detach_volume: %(instance_name)s, %(mountpoint)s") % locals())
device_number = VolumeHelper.mountpoint_to_number(mountpoint)
try:
vbd_ref = VMHelper.find_vbd_by_number(self._session, vm_ref, device_number)
except StorageError, exc:
LOG.exception(exc)
raise Exception(_("Unable to locate volume %s") % mountpoint)
def detach_volume(self, connection_info, instance_name, mountpoint):
"""Detach 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.InstanceNotFound(instance_id=instance_name)
# Detach VBD from VM
LOG.debug(
_("Detach_volume: %(instance_name)s, %(mountpoint)s") % locals())
device_number = VolumeHelper.mountpoint_to_number(mountpoint)
try:
vbd_ref = VMHelper.find_vbd_by_number(self._session, vm_ref,
device_number)
except StorageError, exc:
LOG.exception(exc)
raise Exception(_('Unable to locate volume %s') % mountpoint)
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(
_('Unable to use SR %(sr_ref)s for'
' instance %(instance_name)s') % locals())
try:
self._session.call_xenapi("VBD.plug", vbd_ref)
except self.XenAPI.Failure, exc:
LOG.exception(exc)
self.forget_sr(uuid)
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:
LOG.exception(exc)
self.forget_sr(uuid)
raise Exception(_('Unable to use SR %(sr_ref)s for'
' instance %(instance_name)s') % locals())
try:
self._session.call_xenapi("VBD.plug", vbd_ref)
except self.XenAPI.Failure, exc: