The Azure VMSS Zonal Expansion feature is now generally available. This significant enhancement allows customers to transition their virtual machine scale sets from a regional to zonal resiliency strategy or add additional zones to a scale set. By distributing VMs across multiple zones, customers can significantly enhance their business continuity and resilience, achieving a higher availability Service Level Agreement (SLA) of 99.99% compared to the previous 99.95%.
The Azure VMSS Zonal Expansion feature simplifies the migration process, enabling customers to update their scale set environment to the Azure recommended zone-redundant availability strategy without the need to delete and recreate instances or experience application downtime. This means that businesses can now take full advantage of the improved availability and reliability offered by Azure availability zones, ensuring their applications remain highly available and resilient to potential disruptions.
For more information, visit https://aka.ms/vmss-zonal-expansion
Microsoft