Chaparral VFS226, Руководство пользователя

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VFS226 Rack Model User’s Guide
A-2
Figure A-1. VFS226 device address mapping
Loop ID to AL_PA Mapping
During the Fibre Channel Arbitrated Loop (FC-AL) initialization process, a unique
Arbitrated Loop Physical Address (AL_PA) value is assigned to each port on the loop. Not
all of the 256 hex values are allowed as AL_PA values per FC-AL, so Loop IDs are used
to represent the 125 addresses that the router can use. You can assign a Loop ID to the
router. See
Configuring the FC Host Channels on page 3-12 .
Host Computer
Fibre Channel
Disk
1
Tape 1
Robot
Channel 0 Channel 1 Channel 2
Disk
2
Disk
3
Disk
4
Disk
5
Disk
6
Disk
7
3456789
15
7 7
Tape 2
Tape 3
Tape 5
Tape 6
Tape 7
Tape 4
5689 0123
VFS226
1
Loop ID
Initiator ID
FC LUN
0 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15
Bus:Target:LUN
0:0:0 0:1:0 0:2:0 0:3:0 1:5:0 1:6:0 1:8:0 1:9:0 2:3:0 2:4:0 2:5:0 2:6:0 2:7:0 2:8:0 2:9:0
soft
Device
Robot Tape1 Tape2 Tape3 Tape4 Tape5 Tape6 Tape7
Disk1 Disk2 Disk3 Disk4 Disk5 Disk6 Disk7
VFS226
maps to
What the Host sees (sd.conf, st.conf)
Loop ID
0 1 2
. . .
125 soft
AL_PA
0xEF 0xE8 0xE4
. . .
0x01
?
FC Address
0x0000EF 0x0000E8 0x0000E4
. . .
0x000001
?
Bus:Target ID
0:0 0:1 0:2
. . .
3:29
?
User configured (or
defaulted) @ VFS226
Take first available
(starting at 0xEF)
Mapping depends on Host HBA and driver
1
Loop ID
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1