BugZero | F5 BugID 477700 - Detail missing from power supply 'Bad' status log ...

F5 - Defect ID: 477700

Detail missing from power supply 'Bad' status log messages

F5 - Defect ID: 477700

Detail missing from power supply 'Bad' status log messages

Last updated on November 15th, 2025

BugZero Risk Score
6.0 Medium

Overall: 6.0

Severity: 6.4

Community: 4.2

Lifecycle: 7.8

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Bug Details

Priority: 4-Minor
Status: Test
Impact Category: TMOS
Views: 13

Description

Symptoms

When an internal hardware sensor alert is received indicating a 'Bad' power supply status, no detail is included which indicates which characteristic of the power supply's state is resulting in a 'Bad' overall status for the power supply. In this scenario, the message logged at default logging level contains information similar to the following: ... crit chmand[...]: 012a0013:2: Blade 0 hardware sensor critical alarm: Power Supply 2 GPIO status(SPAFFIV03G): Bad

Impact

Unable to diagnose cause of 'Bad' power supply status at default logging level to determine whether the probable cause is due to a power supply hardware fault or a possible external power source issue.

Conditions

BIG-IP 2000-/4000-/5000-/7000-/10000-series appliances or VIPRION B2100-/B2200-series blades, in which one or more installed power supplies triggers an internal hardware sensor alert indicating a 'Bad' power supply status.

Workaround

If power supply errors continue to be logged: 1. Set the libhal logging level to 'Debug': tmsh mod sys db log.libhal.level { value "Debug" } 2. Let the system run in this configuration for at least a few minutes to collect a number of chmand error logs, such as: ... debug chmand[...]: 012a0007:7: Power Supply 1 alert objid:0x16f local:1 status:0x3 pin:0x2 action:0xd ... debug chmand[...]: 012a0007:7: Received Sensor Alert: sensor id 0x16f slot 0xff ... debug chmand[...]: 012a0007:7: Power Supply 1 alert objid:0x16f local:1 status:0x1 pin:0x2 action:0x3. 3. Set the libhal logging level back to 'Notice': tmsh mod sys db log.libhal.level { value "Notice" } 4. Take a qkview or an archive of /var/log/ltm, and engage F5 Professional Services for further analysis.

Fix Information

When an internal hardware sensor alert is received indicating a 'Bad' power supply status, additional detail is now logged to help identify the cause of the 'Bad' overall status for the power supply.

Change history

2025-04-28 Added: 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1

Relevant Products

Click on a version to see all relevant bugs

Affected versions:11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1

Fixed versions: 11.6.1 HF2, 11.5.7

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 11.6.1 HF2, 11.5.7

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F5 - Defect ID: 477700

Detail missing from power supply 'Bad' status log messages

F5 - Defect ID: 477700

Detail missing from power supply 'Bad' status log messages

Last updated on November 15th, 2025

BugZero Risk Score6.0 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Top F5 Defects

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BugZero Risk Score
6.0 Medium