IBM iSeries Series, Analyze Hardware Problems (System Reference Codes

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Reference Code Description/Action Perform all actions before exchanging Failing Items Failing Item
FF4D I/O processor successfully recovered from temporary error
No action required. This reference code is logged for information only.
When the system is available, display the operator messages, find message
CPI946B, and press F14 to run online problem analysis to see if the error
threshhold has been exceeded.
86G9251
FI00141
EXTSCSI
17G9134
86G9253
86G9255
AJSLC01
FF5D I/O processor successfully recovered from temporary error
No action required. This reference code is logged for information only.
When the system is available, display the operator messages, find message
CPI946B, and press F14 to run online problem analysis to see if the error
threshhold has been exceeded.
86G9251
86G9253
EXTSCSI
FI00141
17G9134
86G9255
FFF6 Tape volume statistics logged (no action required)
No action required. This reference code is logged for information only.
FFF8 Asynchronous device attached; synchronous device expected
The attached device is operational and working in the asynchronous mode
of data tranfer. The IBM tape unit uses the synchronous mode of data
transfer; if the attached device is an IBM tape unit, exchange the tape unit.
86G9251
FFFE Tape unit detected a read error on the tape medium
Perform the Action for reference code 03xx.
MLYTMED
86G9251
86G9253
FFFF Tape unit detected a write error on tape medium
Perform the Action for reference code 03xx.
MLYTMED
86G9251
Table 2. Tape Unit Failing Items Details
Failing Item Description Document Description
17G9134 Terminating plug Magnetic tape subsystem service information
86G9251 Tape Drive 7208 Model 012 5.0GB External 8mm Tape Drive
Service Guide
86G9251 Tape drive Magnetic tape subsystem service information
86G9253 Power supply Magnetic tape subsystem service information
86G9254 Controller logic card Magnetic tape subsystem service information
86G9255 Internal signal cable Magnetic tape subsystem service information
87G1531 Operator Panel/LCD Assembly Magnetic tape subsystem service information
AJSLC01 I/O processor Licensed Internal Code Service Functions; APAR or LICTR
EXTSCSI Cable assembly Problem Analysis; Symbolic FRU Isolation
LIBDEV Media Library Device Magnetic tape subsystem service information
MLYTMED Defective tape System operation information
ULYCLN Tape unit needs cleaning Magnetic tape subsystem operator’s information
ULYCNFG Tape configuration detected by I/O processor;
not valid Magnetic tape subsystem operator’s information
ULYUSR1 Operator action required Magnetic tape subsystem operator’s information
ULYWAIT Wait to next IPL or perform TU-PIP4 Problem Analysis
9427
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iSeries: iSeries 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Analyze Hardware Problems (System Reference
Codes)