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Forum Discussion

tolinrome_13817's avatar
tolinrome_13817
Icon for Nimbostratus rankNimbostratus
Jun 16, 2015

Disable mirroring on HA Pair

F5 documentation mentions that you need to disable mirroring when upgrading the software on an HA Pair. How do I do that and how do I re-enable it? Why does this need to be done? Thanks.  
application delivery
LTM
amolari's avatar
amolari
Icon for Cirrostratus rankCirrostratus
Jun 16, 2015

Connection mirroring is enabled per VS. You may want/need mirroring for some VS and not for others, depending on the nature of the application.

 

F5 recommends to disable it before upgrading a pair, and re-enable it after the pair is upgraded because they make change in the mirroring communication protocol that could lead to incompatibility (when one member of the cluster has another version than others). I do not believe it happens when upgrading a pair in the same release but newer HF. But F5 recommendation is made so to have it the "safe way" (or better said, conservative).