Distributed over every availability zone in a region, allowing it to withstand losing one zone; a StandardV2 NAT gateway is an example.
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In the Ultra Transcenders books
Each book explains Zone-redundant in context, with comparison tables and the common traps.
Terms in this definition
- OVER
Gives a T-SQL window function its window: PARTITION BY, ORDER BY and, if wanted, a ROWS or RANGE frame. Rankings and running totals can then be worked out while every row is kept.
- Availability zone
One or more datacentres in an Azure region that are physically apart from the rest and have their own power, cooling and network. If one zone fails, the others keep running.
- region
A provider-defined grouping in VCF Automation of Supervisors that all share one NSX Local Manager; tenants consume its compute, storage and memory via quotas set per region.
- StandardV2 NAT gateway
A zone-redundant SKU of NAT gateway offering flow logs, IPv6 and greater throughput. It needs StandardV2 public IPs or prefixes, and a Standard gateway cannot be upgraded to it.
Related terms
- AZ SKU
Any VPN or ExpressRoute gateway SKU carrying the AZ suffix (VpnGw1AZ to 5AZ, ErGw1Az to 3Az). In regions with availability zones its instances spread across zones; in other regions it deploys regionally, becoming zone-redundant once zones are introduced there.
- Azure Container Apps
Container hosting built on KEDA where Azure runs the underlying cluster for you; apps scale automatically and can be zone-redundant.
- Azure Database for MySQL
Managed Azure hosting for MySQL Community Edition relational databases, now in its flexible server form. Azure handles backups and patching, offers zone-redundant high availability, and it is often chosen for LAMP stack applications.
- Business Critical
Azure SQL vCore tier offering the lowest latency by running Always On replicas on local SSD, plus zone-redundant failover that loses no data; serverless isn't offered.
- ErGw2Az
The zone-redundant equivalent of the High Performance ExpressRoute gateway; FastPath isn't available on it.
- ErGw3Az
Zone-redundant counterpart to the Ultra Performance ExpressRoute gateway, with FastPath support.
- ErGwScale
Scalable ExpressRoute gateway SKU, zone-redundant, built from 1-Gbps scale units numbering 1 to 40, either fixed or autoscaled. FastPath requires 10 units or more.
- ExpressRoute gateway Standard SKU
ExpressRoute gateway SKU of around 1 Gbps that is neither zone-redundant nor FastPath-capable.