Multiple fans has failed. Chassis temperature is too high

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Category:: fas-systems

Specialty:: hw

Last Updated:

Applies to

FAS2720
ONTAP 9.5P16
BMC

Issue

The EMS-LOG-FILE section of AutoSupport:

[Node-01: monitor: monitor.globalStatus.critical:EMERGENCY]: Multiple fans has failed. Chassis temperature is too high.

[Node-01: env_mgr: monitor.fan.warning:notice]: multiple fans have failed. Replace it to avoid overheating

[Node-01: env_mgr: monitor.temp.unreadable:error]: The controller temperature (Module B Expander Temp) is not readable.

...

[Node-01: env_mgr: monitor.temp.unreadable:error]: The controller temperature (Midplane 4 Temp) is not readable.

[Node-01: env_mgr: monitor.temp.unreadable:error]: The controller temperature (Midplane 3 Temp) is not readable.

...

[Node-01: env_mgr: monitor.temp.unreadable:error]: The controller temperature (Ambient Temp) is not readable.

[Node-01: monitor: monitor.globalStatus.critical:EMERGENCY]: Multiple fans has failed. Chassis temperature is too high.

[Node-01: env_mgr: callhome.c.fan.fru.fault:error]: Call home for CHASSIS FAN FRU FAILED: Multiple fans have failed

The latest version of BMC Firmware does not clear the alert

The IFSTAT-A section of the AutoSupport for interface e0M has high Transmit values

(Or use Cluster::*> system node run -node Node-01 -command ifstat e0M)

-- interface  e0M  (292 days, 7 hours, 50 minutes, 35 seconds) --

TRANSMIT
Total frames:      322g | Frames/second:   12785  | Total bytes:      1386t
Bytes/second:    54899k | Total errors:        0  | Errors/minute:       0
...
TSO segments:      321g | TSO bytes:        1340t | TSO6 segments:       0
TSO6 bytes:          0  | HW UDP cksums:   53871  | HW UDP6 cksums:      0
HW TCP cksums:     322g | HW TCP6 cksums:      0  | Mcast v6 solicit:    0

The system is used for Network Data Management Protocol (NDMP) based backup
The NDMP section of the AutoSupport provides the IP-addresses used for NDMP

[kern_ndmpd:info:5238] [93154] DEBUG: NDMP Connect: Successfully connected to [10.xx.x.xxx].39441, using local address [10.xx.x.x].24858 [kern_ndmpd:info:5238] [93159] DEBUG: NDMP Connect: Successfully connected to [10.xx.x.xxx].39487, using local address [10.xx.x.x].49987 [kern_ndmpd:info:5238] [93165] DEBUG: NDMP Connect: Successfully connected to [10.xx.x.xxx].39545, using local address [10.xx.x.x].28630 (+0:00:01) [kern_ndmpd:info:5238] [93170] DEBUG: NDMP Connect: Successfully connected to [10.xx.x.xxx].39591, using local address [10.xx.x.x].17084

The NETSAT-NRGD section of the AutoSupport present the routing tables:

---- Default IPSpace ---- Routing tables

Internet: Destination Gateway Flags Refs Use Mtu Metric Netif Expire default xx.xx.x.xxx UGS 0 53480 1500 110 a0a-704 => xx.xx.x.x default xx.xx.x.xxx UGS 0 78163 1500 65 e0M => xx.xx.x.xxx default xx.xx.x.xxx UGS 0 202969 1500 65 e0M xx.xx.x.xxx 10.0.0.205 xx.xx.x.xxx UGHS 0 133280 1500 110 a0a-704 xx.xx.x.x 10.0.0.206 xx.xx.x.xxx UGHS 0 133280 1500 110 a0a-704 xx.xx.x.x 10.52.2.0/23 link#1 U 4 28857602472 1500 60 e0M => xx.xx.x.xxx

Traffic is directed to interface e0M with the same subnet