IBM RS/6000 SP, Руководство по определению проблем

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4.3.2 Topology File Nomenclature
Figure 48. Topology File Nomenclature
Logical Notation
The logical notation has three fields that define one end of the cable and three
fields that define the other end. An end of the cable is defined as
< d e v i c e s > < l o g i c a l n u m b e r > < p o r t > , w h e r e :
•
Devices are s(switch), tb0 or tb2 (adapters). The names tb0 and tb2 are
generic for adapters and
do not imply which type of adapter. It is actually
more an indication of when the topology was put together for release (SP1 or
SP2 time frame).
•
The logical number for switch chips has as many as three aspects: (1) the
last significant digit is the switch chip on the switch. This can be 0 through
7, because there are 8 switch chips; (2) the switch number; (3) if this is a
switch in a switch frame, 1000 is added to the logical number to differentiate
it from node frame switches. The switch frame switches are numbered 1
through the total number of switch frame switches. In other words, switch
frame 1 houses switches 1 through 8, and switch frame 2 has switches 9
through 16, and so on. A number like 11 tells you switch chip 1 on switch 1.
A number like 1023 tells you switch chip 3 on switch frame number 2.
•
The logical numbering for the adapters begins with 0. Each number is tied to
a specific node jack on a specific logical switch. If that node does not exist
in the system, that logical adapter is simply ignored by the system. In the
out.top log file, it will be noted as being replaced by a wrap plug.
•
The port number for switch chips can be 0 to 7, because there are eight
ports on a switch chip. Four ports leave the switch assembly and four ports
go to the other chips within the switch assembly.
• The port number is always 0 for adapters.
Chapter 4. The Switch
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