Fibre channel port attributes, Fibre channel topologies, Arbitrated loop physical addresses – HP XP LUN Configuration and Security Manager Software User Manual
Page 17: Table 4 al-pa and loop ids, 4 al-pa and loop ids
LUN Configuration and Security Manager XP user guide for the XP10000/XP12000
17
If you want to use a LUSE volume as a command device, you must specify only the first LU as the command
device.
Fibre Channel port attributes
In Fibre Channel environments, you must configure and set addresses for the Fibre Channel ports. You can
enhance system performance by adjusting the data transfer speed at the Fibre Channel ports and
changing the channel adapter mode.
Fibre Channel topologies
Fibre Channel provides the following topologies:
•
Fabric: Uses a fabric switch to connect a large number of devices. Each device has the full bandwidth
of 100 MB/sec.
•
FC-AL (Fibre Channel-Arbitrated Loop): A shared-bandwidth topology that can connect up to 126
devices (AL ports).
•
Point-to-point: A simple Fibre Channel topology in which two devices are connected directly.
When configuring the disk array, use LUN Manager to specify whether the hosts and the disk array are
connected by a fabric switch. Also, you must specify FC-AL or point-to-point in the LUN Manager pane. The
default is FC-AL.
If you are using a fabric switch, consult the switch’s documentation to learn whether FC-AL or point-to-point
should be used. Some fabric switches require that you specify point-to-point to get the system running.
Arbitrated loop physical addresses
You will need to set addresses for Fibre Channel ports. When addressing Fibre Channel ports, you can use
AL-PA (arbitrated loop physical address) or loop IDs as the addresses (see
).
Table 4
AL-PA and loop IDs
AL-PA
Loop ID
AL-PA
Loop ID
AL-PA
Loop ID
AL-PA
Loop ID
EF
0
B2
32
72
64
3A
96
E8
1
B1
33
71
65
39
97
E4
2
AE
34
6E
66
36
98
E2
3
AD
35
6D
67
35
99
E1
4
AC
36
6C
68
34
100
E0
5
AB
37
6B
69
33
101
DC
6
AA
38
6A
70
32
102
DA
7
A9
39
69
71
31
103
D9
8
A7
40
67
72
2E
104
D6
9
A6
41
66
73
2D
105
D5
10
A5
42
65
74
2C
106
D4
11
A3
43
63
75
2B
107
D3
12
9F
44
5C
76
2A
108
D2
13
9E
45
5A
77
29
109
D1
14
9D
46
59
78
27
110
CE
15
9B
47
56
79
26
111
CD
16
98
48
55
80
25
112
CC
17
97
49
54
81
23
113
CB
18
90
50
53
82
1F
114