1-12 About Storage Navigator Operations
Hitachi Universal Storage Platform V/VM Hitachi Storage Navigator User’s Guide
CU (control unit). The USP V/VM storage system supports a maximum of

256 logical CUs numbered sequentially from 00–FF. Each CU controls up to

256 LDEVs. LDEVs within the USP V/VM storage system are accessed by a

combination of CU number (00-FF) and device number (00–FF).

However, the CU number FF is reserved for the Command Control Interface

(CCI) operation. Therefore the CUs that can be used for the USP V/VM

program products operation are up to CU number FE. This means that the

number of CUs that can be used for the USP V/VM program products

operation are 255 per LDKC at the maximum.

The following table shows the example of the device numbers for CU.

Table 1-2 Example of Device Numbers for Each CU

CU
Number
Possible
Device
Numbers
CU
Number
Possible
Device
Numbers
CU
Number
Possible
Device
Numbers
CU
Number
Possible
Device
Numbers
0 0:00 to
0:FF
10 10:00 to
10:FF
20 20:00 to
20:FF
30 30:00 to
30:FF
1 1:00 to
1:FF
11 11:00 to
11:FF
21 21:00 to
21:FF
31 31:00 to
31:FF
2 2:00 to
2:FF
12 12:00 to
12:FF
22 22:00 to
22:FF
32 32:00 to
32:FF
3 3:00 to
3:FF
13 13:00 to
13:FF
23 23:00 to
23:FF
33 33:00 to
33:FF
4 4:00 to
4:FF
14 14:00 to
14:FF
24 24:00 to
24:FF
34 34:00 to
34:FF
5 5:00 to
5:FF
15 15:00 to
15:FF
25 25:00 to
25:FF
35 35:00 to
35:FF
6 6:00 to
6:FF
16 16:00 to
16:FF
26 26:00 to
26:FF
36 36:00 to
36:FF
7 7:00 to
7:FF
17 17:00 to
17:FF
27 27:00 to
27:FF
37 37:00 to
37:FF
8 8:00 to
8:FF
18 18:00 to
18:FF
28 28:00 to
28:FF
38 38:00 to
38:FF
9 9:00 to
9:FF
19 19:00 to
19:FF
29 29:00 to
29:FF
39 39:00 to
39:FF
A A:00 to
A:FF
1A 1A:00 to
1A:FF
2A 2A:00 to
2A:FF
3A 3A:00 to
3A:FF
B B:00 to
B:FF
1B 1B:00 to
1B:FF
2B 2B:00 to
2B:FF
3B 3B:00 to
3B:FF
C C:00 to
C:FF
1C 1C:00 to
1C:FF
2C 2C:00 to
2C:FF
3C 3C:00 to
3C:FF
D D:00 to
D:FF
1D 1D:00 to
1D:FF
2D 2D:00 to
2D:FF
3D 3D:00 to
3D:FF
E E:00 to
E:FF
1E 1E:00 to
1E:FF
2E 2E:00 to
2E:FF
3E 3E:00 to
3E:FF
F F:00 to
F:FF
1F 1F:00 to
1F:FF
2F 2F:00 to
2F:FF
3F 3F:00 to
3F:FF