def _dry_run(self, volume, snapshot, datadir):
"""Implement dry-run for LVM snapshots.
"""
LOG.info("* Would snapshot source volume %s/%s as %s/%s (size=%s)",
volume.vg_name, volume.lv_name, volume.vg_name, snapshot.name,
format_bytes(snapshot.size * int(volume.vg_extent_size)))
LOG.info("* Would mount on %s", snapshot.mountpoint
or 'generated temporary directory')
if getmount(self.target_directory) == getmount(datadir):
LOG.error(
"Backup directory %s is on the same filesystem as "
"the source logical volume %s.", self.target_directory,
volume.device_name())
LOG.error("This will result in very poor performance and "
"has a high potential for failed backups.")
raise BackupError("Improper backup configuration for LVM.")
def _dry_run(self, volume, snapshot, datadir):
"""Implement dry-run for LVM snapshots.
"""
LOG.info("* Would snapshot source volume %s/%s as %s/%s (size=%s)",
volume.vg_name,
volume.lv_name,
volume.vg_name,
snapshot.name,
format_bytes(snapshot.size*int(volume.vg_extent_size)))
LOG.info("* Would mount on %s",
snapshot.mountpoint or 'generated temporary directory')
snapshot_mountpoint = snapshot.mountpoint or tempfile.gettempdir()
if getmount(self.target_directory) == getmount(datadir):
LOG.error("Backup directory %s is on the same filesystem as "
"the source logical volume %s.",
self.target_directory, volume.device_name())
LOG.error("This will result in very poor performance and "
"has a high potential for failed backups.")
raise BackupError("Improper backup configuration for LVM.")