Silicon Graphics SGI Altix 3700 Bx2, User Manual

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Operating the L1
007-4377-002 31
• Subchannel 0A specifies Node 0, CPU A.
• Subchannel 0C specifies Node 0 CPU B.
• Subchannel 1A specifies Node 1, CPU A.
• Subchannel 1C specifies Node 1, CPU B.
• Subchannel 2A specifies Node 2, CPU A.
• Subchannel 2C specifies Node 2, CPU B.
• Subchannel 3A specifies Node 3, CPU A.
• Subchannel 3C specifies Node 3, CPU B.
• Node 0 console subchannel.
• Node 1 console subchannel.
The output
console input: 001c05 console0
shows that the system interface
console will send input to brick 001c05 and the subchannel to be used is the console0
subchannel.
To change system console status from one brick to the attached CR-brick, use the
select
<rack> <slot> command:
001c05-L1> select r 2 s 1
console input: 001c05 console
console output: not filtered.
001c05-L1>
To change the subchannel used on the selected brick, use the select
command followed by the subchannel number or the word console:
001c05-L1> select sub 0A
console input: 001c05 CPU 0A
console output: not filtered.
001c05-L1>
During the boot process on a multi-rack system, there is a window of time in which both
CR-bricks are producing output. This output can produce a somewhat jumbled output
at the L1. However, you can filter the console output so that the L1 shows output from
only the brick chosen to receive console input. You can turn filtering on and off with the
select filter
command.
If you attempt to communicate with a brick that is not responding, a time-out condition
results: