For DNS count, take the address count, assume A, PTR and TXT (DHCP DDNS) so multiple number by 3.

For external DNS with DNSSEC, multiple number by 12.

Then ensure we don't exceed 40% capacity of the appliance.

Expect vADP to have a 10K QPS hit on an appliance if the appliance comes under attack.

Expect 15% QPS hit for RPZ and 25% QPS hit for ADP.

You need at least 16Gb of RAM to connect NIOS 8.5 to BloxOne DDI. NIOS 8.6 seems happy with 14GB. This means that if you use the DS11v2 image in Azure to deploy NIOS, it comes with 14Gb of RAM so it won't connect to BloxOne if you run NIOS 8.5 on it.

The Multi-Grid add-on for B1TD is so that we don't need the license that enables B1TD on a Grid by Grid basis using the Grid ID.

TE-8×5 are not recommended for GM/GMC as per this page. However, TE-8×5 VM's are officially supported for GM/GMC as per this page.