anchor.diff:  
   ## <a id='supporting-scaling'></a> Support Component Scaling
   
  -The ability to vertically scale component VMs is important for high availability. 
  +The ability to scale component VMs is important for high availability. 
   
   To scale component VMs, you must ensure that the surrounding infrastructure of your deployment supports VM scaling.
   
  
positive.code: 
  Availability Zones (AZs) are locations where public cloud services offer data centers. 
  
  You can assign and scale components in multiple AZs to help maintain high availability through redundancy. To configure sufficient redundancy, deploy <%= vars.product_short %> across three or more AZs and assign multiple component instances to different AZs.
  
  A deployment with three or more availability zones operates uninterrupted when entire AZs become unavailable. For example, a three-AZ deployment stays available when one entire AZ goes down, and a five-AZ deployment stays available during an outage of up to two AZs.
  
  
  ## <a id='external-lbs'></a> External Load Balancers for High Availability
  
  
negative.code: 
  You can horizontally scale most <%= vars.product_short %> components to multiple instances to achieve the redundancy required for high availability. 
  
  You should also distribute the instances of components across different AZs to minimize downtime during ongoing operation, product updates, and platform upgrades. For more information about using AZs, see [Availability Zones for High Availability](#azs).
  
  <%= vars.scaling_ert %>
  
  