def take_snapshots_on_data_images(self):
"""take snapshots on data images"""
snapshot_options = {}
for idx, source_node in enumerate(self._source_nodes):
backup_utils.blockdev_snapshot(self.main_vm, source_node,
self._snap_nodes[idx],
**snapshot_options)
def create_snapshot(self, source):
snapshot_options = {}
source_node = "drive_%s" % source
source_params = self.params.object_params(source)
snapshot_tag = source_params["snapshot"]
snapshot_node = "drive_%s" % snapshot_tag
snapshot_img = self.target_disk_define_by_params(
self.params, snapshot_tag)
snapshot_img.hotplug(self.main_vm)
self.trash.append(snapshot_img)
backup_utils.blockdev_snapshot(self.main_vm, source_node,
snapshot_node, **snapshot_options)
def snapshot_test(self):
"""create one snapshot, create one new file"""
self.generate_tempfile(self.disks_info[0][1],
filename="base",
size=self.params["tempfile_size"])
# data->sn1->sn2->sn3
chain = [self.base_tag] + self._snapshot_images
for idx in range(1, len(chain)):
backup_utils.blockdev_snapshot(self.main_vm,
"drive_%s" % chain[idx - 1],
"drive_%s" % chain[idx])
self.generate_tempfile(self.disks_info[0][1],
filename=chain[idx],
size=self.params["tempfile_size"])
def create_snapshot(self):
error_context.context("do snaoshot on multi_disks", logging.info)
assert len(self.target_disks) == len(
self.source_disks), "No enough target disks define in cfg!"
source_lst = list(map(lambda x: "drive_%s" % x, self.source_disks))
target_lst = list(map(lambda x: "drive_%s" % x, self.target_disks))
arguments = {}
if len(source_lst) > 1:
error_context.context("snapshot %s to %s " %
(source_lst, target_lst))
backup_utils.blockdev_batch_snapshot(self.main_vm, source_lst,
target_lst, **arguments)
else:
error_context.context("snapshot %s to %s" %
(source_lst[0], target_lst[0]))
backup_utils.blockdev_snapshot(self.main_vm, source_lst[0],
target_lst[0])
def _blockdev_snapshot(self, nodes, overlays):
snapshot_options = {}
for idx, source_node in enumerate(nodes):
backup_utils.blockdev_snapshot(self.main_vm, source_node,
overlays[idx], **snapshot_options)
def create_snapshots(self):
for idx, source in enumerate(self._source_images):
backup_utils.blockdev_snapshot(
self.main_vm, "drive_%s" % source,
"drive_%s" % self._snapshot_images[idx])