Hi there, I don't know whether the topic has been raised or not, but you are the performance experts, so I ask. Do we have documentation about the appliance sizing ? We have some ratios, like : "300 VMs per instance", "deploy N+1 instances", the database sizing spreadsheet, ... but I can't find the documentation that explains why. Can we scale up the instances, instead of scaling out ? Then, what are the sizing rules for the workers ? Are there limits to the number of appliances ? How do we know that the appliance is 'suffering' ? Thanks for your help.