Reference Codes - IBM Flex System p270 Compute Node Installation And Service Manual

Table 9. Mapping network adapter ports to IBM Flex System Enterprise Chassis I/O bays for the IBM Flex System
p270 Compute Node (continued)
IBM Flex
System 2-port
QDR
Port location InfiniBand
code adapter
Un-P1-C19-L2-
T2
Un-P1-C19-L2-
T3*
Un-P1-C19-L2-
T4*
For more information about port mapping, see http://publib.boulder.ibm.com/infocenter/flexsys/information/
topic/com.ibm.acc.8721.doc/configuring_io_modules.html.
* Ports L2-T3 and L2-T4 require switches that have 56 internal port capability.

Reference codes

Reference codes are diagnostic aids that help you determine the source of a hardware or operating
system problem. To use reference codes effectively, use them in conjunction with other service and
support procedures.
The IBM Flex System p270 Compute Node produces several types of codes.
Progress codes: The power-on self-test (POST) generates eight-digit status codes that are known as
checkpoints or progress codes, which are recorded in the management-module event log. The checkpoints
indicate which compute node resource is initializing.
Error codes: The First Failure Data Capture (FFDC) error checkers capture fault data, which the service
processor then analyzes. For unrecoverable errors (UEs), for recoverable events that meet or exceed their
service thresholds, and for fatal system errors, an unrecoverable checkstop service event triggers the
service processor to analyze the error, log the system reference code (SRC), and turn on the system
attention LED.
The service processor logs the nine-word, eight-digit per word error code in the IBM Flex System
Enterprise Chassis management-module event log. Error codes are either system reference codes (SRCs) or
service request numbers (SRNs). A location code might also be included.
Isolation procedures: If the fault analysis does not determine a definitive cause, the service processor
might indicate a fault isolation procedure that you can use to isolate the failing component.
106
Power Systems: IBM Flex System p270 Compute Node Installation and Service Guide
IBM Flex
System 2-port
IBM Flex 8 Gb and
System 2-port 2-port 16 Gb
10 Gb RoCE Fibre Channel
adapter adapter
IBM Flex
IBM Flex System 4-port
System 4-port 1 Gb Ethernet
16 Gb Fibre and 4-port 10
Channel Gb Ethernet
adapter adapters
Chassis I/O Chassis I/O
bay 4 bay 4
IBM Flex
System 8-port
10 Gb
converged
adapter
Chassis I/O
bay 4
Chassis I/O
bay 3
Chassis I/O
bay 4