ECS: xDoctor: RAP015: Fan Failure
Summary: A fan reports a failure state on the node.
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Symptoms
A fan on the node has stopped reporting that it is in working condition.
A fan has reported that it is in a failure state and could cause overheating on the node if not addressed.
A fan has reported that it is in a failure state and could cause overheating on the node if not addressed.
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CRITICAL - Fan Failure
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Node = 169.254.1.3
Extra = {'node': '169.254.1.3', 'item': 'Fan1', 'status': 'CRIT', 'fan': 'System Board', 'info': '0 RPM, below critical threshold'}
RAP = RAP015
Solution = KB 470284
Timestamp = 2023-08-22_102927
PSNT = CKMxxxxxxxxxxx @ 4.8-92.0
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CRITICAL - Fan Failure
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Node = 169.254.1.3
Extra = {'node': '169.254.1.3', 'item': 'Fan Redundancy', 'status': 'FAIL', 'fan': 'System Board', 'info': 'not redundant, redundancy lost'}
RAP = RAP015
Solution = KB 470284
Timestamp = 2023-08-22_102927
PSNT = CKMxxxxxxxxxxx @ 4.8-92.0Cause
Moving component failure due to electrical fault or age.
Resolution
Connect to the node in question and verify the issue:
Verify the fan status on the reported node using cs_hal.
Issue command: # cs_hal sensors fan
Example of a healthy fan:
admin@node3:~> cs_hal sensors fan Entity Type Label Status Info ----- ----- ----- ----- ----- System Board Fan Fan1 OK 12600 RPM System Board Fan Fan2 OK 12600 RPM System Board Fan Fan3 OK 16920 RPM System Board Fan Fan4 OK 16920 RPM System Board Fan Fan5 OK 17040 RPM System Board Fan Fan6 OK 17040 RPM System Board Fan Fan Redundancy OK fully redundant;
Shown below, the speed of the other fans increases creating more air flow to keep the node cool until the fan has been replaced.
Example of a failed fan:
admin@node3:~> cs_hal sensors fan Entity Type Label Status Info ----- ----- ----- ----- ----- System Board Fan Fan1 CRIT 0 RPM; below critical threshold System Board Fan Fan2 OK 13440 RPM System Board Fan Fan3 OK 20640 RPM System Board Fan Fan4 OK 20880 RPM System Board Fan Fan5 OK 20880 RPM System Board Fan Fan6 OK 20640 RPM System Board Fan Fan Redundancy FAIL not redundant; redundancy lost;
Issue command: # sudo ipmitool -H <BMC_IP> -U root -P passwd -I lanplus sdr type "Fan"
admin@node3:~> sudo ipmitool -H 192.168.219.103 -U root -P passwd -I lanplus sdr type "Fan" Fan1 | 38h | lcr | 7.1 | 0 RPM Fan2 | 39h | ok | 7.1 | 13440 RPM Fan3 | 3Ah | ok | 7.1 | 20640 RPM Fan4 | 3Bh | ok | 7.1 | 20880 RPM Fan5 | 3Ch | ok | 7.1 | 20880 RPM Fan6 | 3Dh | ok | 7.1 | 20640 RPM Fan Redundancy | 78h | ok | 7.1 | Redundancy Lost
Issue command: # sudo -i racadm getsensorinfo
(cutting the complete output.) admin@node3:~> sudo -i racadm getsensorinfo Sensor Type : FAN <Sensor Name> <Status> <Reading> <lc> <uc> <PWM %> <Type> System Board Fan1 Failed 0RPM 480RPM NA NA High Performance System Board Fan2 Ok 13440RPM 480RPM NA 65% High Performance System Board Fan3 Ok 20640RPM 480RPM NA 100% High Performance System Board Fan4 Ok 20640RPM 480RPM NA 100% High Performance System Board Fan5 Ok 20880RPM 480RPM NA 100% High Performance System Board Fan6 Ok 20640RPM 480RPM NA 100% High Performance <Sensor Name> <Status> <Type> System Board PS Redundancy Full Redundant PSU System Board Fan Redundancy Redundancy Lost Fan
If any fan has a status that is not OK reporting CRIT, then the fan has failed and should be replaced. If you do not have a service request (SR) for this issue, open one with ECS support referring to this KB.
Affected Products
ECS Appliance Hardware Gen1 U-SeriesProducts
ECS ApplianceArticle Properties
Article Number: 000041145
Article Type: Solution
Last Modified: 30 Sep 2025
Version: 5
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