How to change the fail mode from fail-open to fail-close or vice versa on Imperva blade running on Crossbeam platform?n/a

Q1. Can the fail mode be changed on the fly on Crossbeam platform similar to Imperva gateways running on other non-Crossbeam platforms, 

A1. On Crossbeam platform, the fail mode cannot be changed on the fly for Imperva Gateways running on Crossbeam platform.
A2. During the initial configuration, if you tell the Imperva GUI that you are working on a Crossbeam appliance, it will let you choose one: fail close or fail open.  However, on a Crossbeam appliance to switch the fail-mode, you have to create another gateway group and pick the different option. 

Workaround