When Should Use Available Zone or Set?

Question

Dhanush M P · Accepted Answer

Use an Availability Set when your workload requires high availability within a single datacenter by distributing VMs across fault and update domains to protect against hardware failures and maintenance. Use Availability Zones for mission-critical applications needing high resiliency and disaster recovery across multiple physically separate datacenters within the same Azure region, providing protection against entire datacenter outages.

Dhanush M P · Answer

Use an Availability Set when you want to protect VMs from hardware failures or planned maintenance within a single data center, providing up to 99.95% SLA. Use an Availability Zone to protect against entire data center failures by distributing resources across physically separate zones within a region, offering higher resilience with 99.99% SLA.

When Should Use Available Zone or Set?

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