Opened "TEST.h5" with sec2 driver.
Monitoring dataset /DSET_TWO...
dimension 0: 4->4 (unchanged)
dimension 1: 10->12 (increases)
    Data:
        (0,10) 0, 0
        (1,10) 0, 0
        (2,10) 0, 0
        (3,10) 0, 0
