This figure shows drive mappings for both the internal/software (ACSLS) and external/physical hardware.

ACSLS drive mappings for LSMs 1-4:

LSM 0:
0  4  8   12
1  5  9   13
3  7  11  15

LSM 1:
0  4  8   12
1  5  9   13
2  6  10  14
3  7  11  15

LSM 2:
0  4  8   12
1  5  9   13
2  6  10  14
3  7  11  15

LSM 3:
0  4  8   12
1  5  9   13
2  6  10  14
3  7  11  15

Hardware drive mappings for Rails 1-4:

Rail 1:
61  62  63  64
57  58  59  60
53  54  55  56

Rail 2:
45  46  47  48
41  42  43  44
37  38  39  40
33  34  35  36

Rail 3:
29  30  31  32
25  26  27  28
21  22  23  24
17  18  19  20

Rail 4:
13  14  15  16
9   10  11  12
5   6   7   8
1   2   3   4