Bug ID 442022: Chassis Power Cycle can cause the a secondary blade in the cluster to not come up

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
11.6.0, 11.6.0

Opened: Jan 02, 2014

Severity: 3-Major


With a chassis power cycle, a secondary blade in the cluster may not come up.


Blade may be inoperable.


Powering on a blade from a chassis power off condition. Also, pulling and reinserting a blade.


BIOS 1.23 or newer has a fix for this issue. An alternative workaround requires either power cycling the chassis or a blade pull and reinsertion.

Fix Information

Upgrade to BIOS 1.23 or newer. An alternative is to power cycle the chassis, or pull and re-insert the blade.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips