Bug ID 1012601: Alarm LED and LCD alert cleared prematurely on startup for missing PSU input

Last Modified: Apr 17, 2024

Affected Product(s):
BIG-IP All(all modules)

Known Affected Versions:
14.1.4,,,,,,, 14.1.5,,,,,,, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 15.1.10,,,

Opened: Apr 20, 2021

Severity: 3-Major


Occasionally when starting up a BIG-IP system, if one PSU is connected but not supplying power, the corresponding amber alarm LED and "PSU status input lost" alert in the LCD menu can be incorrectly cleared after selecting System -> Power On from the LCD menu.


The alarm LED is incorrectly turned off, and navigating to alerts on the LCD menu no longer shows a "PSU status input lost" alert after powering on.


-- iSeries platforms -- The BIG-IP device is powered on with one PSU connected and not supplying power


Before powering on the BIG-IP device, check the alarm LED and navigate to alerts on the LCD screen. If there is a "PSU status input lost" alert, the corresponding power LED should be amber. If the power LED is still amber after powering the system on but the alarm LED and LCD alert are cleared, please disregard the alarm LED and LCD in this case. The amber power LED is correct, and the PSU is still not supplying power. Additionally, if you are logged into the console, running "bigstart restart chmand" will force a new "PSU status input lost" alert to be generated on the LCD and should also correct the alarm LED color to amber.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips