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.")