Process command line options
It is noop...
Open the file h5fc_v_ndata_bt1-tmp.h5
Going to process dataset: /DSET_NDATA_BT2...
Open the dataset
Retrieve the dataset's layout
Dataset is a chunked dataset
Retrieve the dataset's chunk indexing type
Dataset's chunk indexing type is already version 1 B-tree: no further action
Close the dataset
Close the dataset creation property list
Not processing the file's superblock...
Close the file