Bug ID 2183793: Swapping controllers between slots in the same chassis will not operate correctly

Last Modified: Jan 27, 2026

Affected Product(s):
F5OS F5OS-C(all modules)

Known Affected Versions:
F5OS-C 1.8.2

Opened: Dec 10, 2025

Severity: 1-Blocking

Symptoms

Removing both controllers from the chassis and swapping their slots is not supported, as this will prevent the cluster from functioning properly and result in an unhealthy state.

Impact

Cluster will remain in an unhealthy state.

Conditions

There is very specific openshift information stored within each controller based on the slot. Physically swapping these slots will result in the cluster entering an unhealthy state.

Workaround

Issue a manual cluster reinstall.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips