Forum Discussion
Stefan_Klotz
Cumulonimbus
CumulonimbusStandby LB becomes Active during HA software update
Normally a software update within the same major release and especially just a Hotfix update is a very easy and less critical task without any downtime.
We are using the following steps:
relice...
Let me answer this by myself again.
The above mentioned steps are still fine, but what we did for a while now is setting the standby-LB into offline mode before booting into the new partition. With this the LB will also come up again in offline mode. When you then release offline mode it will always become correctly the standby-LB.
Hope this might help someone out there.
Ciao Stefan :)
There is one warning with your method. It wont work on Viprions or vCMP Guests managed by Self IP.
https://support.f5.com/csp/article/K15122
- On VIPRION systems, the system terminates connections to self IP addresses and does not allow new connections.
- Note: When you enable Force Offline, the Traffic Management Microkernel (TMM) interfaces remain configured until the unit is restarted. If the system is restarted while Force Offline is enabled, the system marks all TMM interfaces as Uninitialized or Missing. This behavior is by design; the system does not attempt to initialize and bring up TMM interfaces while the system is in the offline state.
- For vCMP guests and hypervisors on VIPRION platforms, the system terminates connections to self IP addresses, and does not allow new connections.
So if you are not using vCMP Guests and Viprion Platforms managed by Self IP you are doing it in a supported method. If you are using Viprion or vCMP managed by self IP Forced offline will prevent you from managing the devices outside the Management IP.
Hope this helps avoid any mishaps.
-Mike M.