Fujitsu SPARC Enterprise T5140 Product Notes page 87

Service Required LED May Turn On Due To False
Recognition of Fan Speed (CR 6989852)
This issue is resolved by updating the system firmware to 7.3.0.c or later.
ILOM firmware falsely recognizes the fan speed as "0" and the Service Required LED may
turn on. In that case, the following event log is output.
The ILOM event log example:
IPMI | critical: "ID =
: Lower
Non-recoverable going low
IPMI | critical: "ID =
: Lower
Non-recoverable going low
IPMI | critical: "ID =
: Lower
Non-recoverable going low
IPMI | critical: "ID =
: Lower
Non-recoverable going low
The showenvironment command output example:
--------------------------------------------------------------------
Fan Status:
--------------------------------------------------------------------
Fans (Speeds Revolution Per Minute):
Sensor
--------------------------------------------------------------------
/SYS/FANBD0/FM0/F0/TACH
/SYS/FANBD0/FM0/F1/TACH
/SYS/FANBD0/FM1/F0/TACH
/SYS/FANBD0/FM1/F1/TACH
/SYS/FANBD0/FM2/F0/TACH
/SYS/FANBD0/FM2/F1/TACH
The showfaults command output example:
sc> showfaults
Last POST Run: Mon Jul 12 00:08:46 2010
Post Status: Passed all devices
ID FRU Fault
1 /SYS/FANBD0/FM0 SP detected fault:
TACH at /SYS/FANBD0/FM0/F0 has reached low non-recoverable threshold.
2 /SYS/FANBD0/FM0 SP detected fault:
9a : 08/17/2010 : 00:39:17 : Fan : /FB0/FM0/F0/TACH
: reading 0 <= threshold 2400 RPM"
9a : 08/17/2010 : 00:39:22 : Fan : /FB0/FM0/F1/TACH
: reading 0 <= threshold 2400 RPM"
9a : 08/17/2010 : 00:39:26 : Fan : /FB0/FM1/F0/TACH
: reading 0 <= threshold 2400 RPM"
9a : 08/17/2010 : 00:39:30 : Fan : /FB0/FM2/F1/TACH
: reading 0 <= threshold 2400 RPM"
Status
FAILED
FAILED
FAILED
OK
OK
FAILED
Speed Warn
0 4000
0 4000
0 4000
6400 4000
7000 4000
0 4000
Appendix A
Low
2400
2400
2400
2400
2400
2400
Fixed Issues 77