複数のIOファンがシステムシャットダウンで失敗しました

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環境

FAS6280
FAS8080
サービスプロセッサ（SP）

問題

次のコマンド出力には、複数のIO Fans FAILEDエラーイベントが表示されます。

例：

SP*> system log ... Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO AUX 3.3V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO AUX 1.2V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO SWC 2.5V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO SWC 1.5V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO STBY 12V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO STBY 5V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO STBY 3.3V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO 12V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO 3.3V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO STBY MP 5V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO MP 12V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO PCI Swt R 1V in the controller module is not readable. Fri May 29 13:19:25 CST [cluster-B:monitor.power.unreadable:info]: A power sensor IO PCI Swt L 1V in the controller module is not readable. Fri May 29 13:22:56 CST [cluster-B:callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: IOFan3 F2 Fri May 29 13:22:56 CST [cluster-B:monitor.chassisFan.stop:ALERT]: Chassis fan contains at least one stopped fan: IOFan3 F2 (failed) Fri May 29 13:22:56 CST [cluster-B:callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: IOFan3 F1 Fri May 29 13:22:56 CST [cluster-B:monitor.chassisFan.stop:ALERT]: Chassis fan contains at least one stopped fan: IOFan3 F1 (failed) Fri May 29 13:22:56 CST [cluster-B:callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: IOFan2 F2 Fri May 29 13:22:56 CST [cluster-B:monitor.chassisFan.stop:ALERT]: Chassis fan contains at least one stopped fan: IOFan2 F2 (failed) Fri May 29 13:22:56 CST [cluster-B:callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: IOFan2 F1 Fri May 29 13:22:56 CST [cluster-B:monitor.chassisFan.stop:ALERT]: Chassis fan contains at least one stopped fan: IOFan2 F1 (failed) Fri May 29 13:22:56 CST [cluster-B:callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: IOFan1 F2 Fri May 29 13:22:56 CST [cluster-B:monitor.chassisFan.stop:ALERT]: Chassis fan contains at least one stopped fan: IOFan1 F2 (failed) Fri May 29 13:22:56 CST [cluster-B:callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: IOFan1 F1 Fri May 29 13:22:56 CST [cluster-B:monitor.chassisFan.stop:ALERT]: Chassis fan contains at least one stopped fan: IOFan1 F1 (failed) Fri May 29 13:22:56 CST [cluster-B:monitor.shutdown.emergency:EMERGENCY]: Emergency shutdown: Multiple chassis fans have failed. Fri May 29 13:23:00 CST [cluster-B:monitor.globalStatus.critical:CRITICAL]: Multiple fans failed: IOFan1 F1, IOFan1 F2, IOFan2 F1, IOFan2 F2, IOFan3 F1, IOFan3 F2. Fri May 29 13:23:06 CST [cluster-B:monitor.shutdown.emergency:EMERGENCY]: Emergency shutdown: Environmental Reason Shutdown (Multiple IO fans failed)

Failed to read IOXM Nuvoton errorイベントは、次のコマンド出力に表示されます。

例：

cat /var/log/messages ===================== May 29 06:18:32 (none) : [438 WARNING][Absolut.c:5173]**** Failed to read IOXM Nuvoton config: Bank 2 Reg 0x2 Data 0x0 Error -1 May 29 06:18:32 (none) : [438 WARNING][libi2c.c:806]Error: i2c_multimsg: intended=4pkts, actual=-1pkts, w:b=4:sa=0xe0:n=1, w:b=4:sa=0x58:n=2, w:b=4:sa=0x58:n=1, r:b=4:sa=0x58:n=1, May 29 06:18:32 (none) last message repeated 2 times May 29 06:18:32 (none) : [438 WARNING][Absolut.c:5173]**** Failed to read IOXM Nuvoton config: Bank 2 Reg 0x3 Data 0x0 Error -1 May 29 06:18:32 (none) : [438 WARNING][libi2c.c:806]Error: i2c_multimsg: intended=4pkts, actual=-1pkts, w:b=4:sa=0xe0:n=1, w:b=4:sa=0x58:n=2, w:b=4:sa=0x58:n=1, r:b=4:sa=0x58:n=1, May 29 06:18:32 (none) last message repeated 2 times May 29 06:18:32 (none) : [438 WARNING][Absolut.c:5173]**** Failed to read IOXM Nuvoton config: Bank 2 Reg 0x4 Data 0x0 Error -1 May 29 06:18:32 (none) : [438 WARNING][libi2c.c:806]Error: i2c_multimsg: intended=4pkts, actual=-1pkts, w:b=4:sa=0xe0:n=1, w:b=4:sa=0x58:n=2, w:b=4:sa=0x58:n=1, r:b=4:sa=0x58:n=1, May 29 06:18:32 (none) last message repeated 2 times May 29 06:18:32 (none) : [438 WARNING][Absolut.c:5173]**** Failed to read IOXM Nuvoton config: Bank 2 Reg 0x5 Data 0x0 Error -1