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22 LUN Manager for the XP128/XP1024

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) that

would otherwise be reserved for the other ports. Balancing the workload on the processors can improve

system performance.

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

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 97 98

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Hp StorageWorks XP Remote Web Console Software Manual de usuario Pagina 22