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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