Lenovo XClarity - Fans

Checkmk Exchange
1

Hi,
install went fine, but all fans are in warn status enable speed problem, how can i fix it?
thx + regards
Huetti

2

I think you mean my extension.
To troubleshoot this problem i need the agent output from one of these machines.
You can sent it as PM.

3

Hi,
cannot send PM, so i copied the output for one fan (all fans have the same behaviour)

'Name': 'Fan 1A Tach', 
'FanName': 'Fan 1A Tach',
 'MaxReadingRange': 21420, 
 'MinReadingRange': 0, 
 'Reading': 4116, 
 'UpperThresholdCritical': None, 
 'UpperThresholdNonCritical': None, 
 'RelatedItem': 
 [{'@odata.id': '/redfish/v1/Systems/1'},
 {'@odata.id': '/redfish/v1/Chassis/1'}],
 'PhysicalContext': 'Fan',
 'Oem': {'Lenovo': {'Location': {'InfoFormat@Redfish.Deprecated': 'The property is deprecated. Please use PartLocation instead.',
 'Info@Redfish.Deprecated': 'The property is deprecated. Please use PartLocation instead.', 
 'InfoFormat': 'Slot X', 'Info': 'Slot 1'}}},
 '@odata.id': '/redfish/v1/Chassis/1/Thermal#/Fans/0', 
 'UpperThresholdFatal': None,
 'LowerThresholdCritical': 840, 
 'LowerThresholdNonCritical': None, 
 'SensorNumber': 192,
 'Location': {'PartLocation': {'LocationOrdinalValue': 1, 'ServiceLabel': 'Fan 1A Tach', 'LocationType': 'Slot'}}, 
 'HotPluggable': True, 
 'ReadingUnits': 'RPM',
 'LowerThresholdFatal': None,
 'MemberId': '0', 
 'Status': {'Health': 'OK', 'State': 'Enabled'}},
4

I see what the problem is. My check has a “automatic” lower threshold if nothing is defined from 20% of maximum speed.
In your case this would be 4280 rpm as lower threshold. Your fan has only 4116 rpm.
To fix this problem you can edit the file.
lenovo_xclarity_fans.py
Line 50

        min_warn = max_range / 100 * 20

to

        min_warn = max_range / 100 * 10

This is only a quick workaround. I need to implement the possibility to define own thresholds from setup.

5

Hi Andreas,

thank you for the quick response and workaround.

best wishes
Hütti

6

If you want you can test on my github the actual version. Fan speed is now fully configurable.

If it works correctly on your system i can upload it to the exchange. My tests where ok.