HP StorageWorks LUN Configuration and Security Manager XP User Guide for the XP1024/XP128 (T1614-96005, March 2006)
20 LUN Manager for the XP1024/XP128
Data transfer speed for Fibre Channel ports
As disk array operation continues, you may notice that a larger amount of data is transferred at some
ports and a smaller amount is transferred at other ports. To improve system performance, set a faster data
transfer speed for ports where a larger amount of data is transferred, and a slower data transfer speed for
ports where a smaller amount of data is transferred.
Standard, high-speed, and high-speed (2 port) modes
The channel adapter boards can operate in standard, high-speed, or high-speed (2-port) mode. Standard
mode is the default. If a channel adapter board satisfies certain conditions, you can set it to high-speed or
high-speed (2 port) mode to improve port performance.
NOTE: High-speed (2 port) mode is available only if firmware version 21.06.22 or later is installed on
the disk array.
High-speed mode can be applied to channel adapter boards that satisfy the following conditions:
• Only one port is planned for use.
• All ports take the same Fibre topology option (on or off).
• All ports take FC-AL as the Connection option.
• All ports use different port addresses and no matching addresses.
• All ports take the same port attribute (Initiator, RCU target, or Target).
If high-speed mode is applied to a channel adapter board, only one of the ports on the channel adapter
board can be used. This port can exclusively use channel processors and fibre optic processors (FOPs)
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
CA 19 8F 51 52 83 1E 115
C9 20 88 52 51 84 1D 116
C7 21 84 53 4E 85 1B 117
C6 22 82 54 4D 86 18 118
C5 23 81 55 4C 87 17 119
C3 24 80 56 4B 88 10 120
BC 25 7C 57 4A 89 0F 121
BA 26 7A 58 49 90 08 122
B9 27 79 59 47 91 04 123
B6 28 76 60 46 92 02 124
B5 29 75 61 45 93 01 125
B4 30 74 62 43 94
B3 31 73 63 3C 95
Table 4 AL-PA and loop IDs (continued)
AL-PA Loop ID AL-PA Loop ID AL-PA Loop ID AL-PA Loop ID