Storage layout for DS1 is: H5D_COMPACT

Data for DS1 is: 
 [ 0 -1 -2 -3 -4 -5 -6 ]
 [ 0 0 0 0 0 0 0 ]
 [ 0 1 2 3 4 5 6 ]
 [ 0 2 4 6 8 10 12 ]