[Rdo-list] Question about changing overcommitment settings

I'd disabled the CPU ALLOC RATIO on an existing RDO multi-node environment in the answer file to 1: CONFIG_NOVA_SCHED_CPU_ALLOC_RATIO=1.0 And would like to change the value to a higher value, e.g. 8: CONFIG_NOVA_SCHED_CPU_ALLOC_RATIO=8.0 Can I change this setting directly in the DB or in some config files? Or shall I run packstack against the changed answer file again? Thanks for your help in advance! Arash