1Process command line options
2Open the file outtmp.h5
3Going to process dataset: /GROUP/DSET_BT2...
4Open the dataset
5Retrieve the dataset's layout
6Dataset is a chunked dataset
7Retrieve the dataset's chunk indexing type
8Dataset's chunk indexing type is already version 1 B-tree: no further action
9Close the dataset
10Close the dataset creation property list
11Processing the file's superblock...
12Close the file
13