edit

Author: anaharris-ms

articles/reliability/includes/reliability-availability-zone-description-include.md

@@ -4,13 +4,11 @@
  author: anaharris-ms
  ms.service: azure
  ms.topic: include
- ms.date: 06/21/2022
+ ms.date: 11/12/2024
  ms.author: anaharris
  ms.custom: include file
 ---
 
-Azure availability zones are at least three physically separate groups of datacenters within each Azure region. Datacenters within each zone are equipped with independent power, cooling, and networking infrastructure. In the case of a local zone failure, availability zones are designed so that if the one zone is affected, regional services, capacity, and high availability are supported by the remaining two zones.
+Availability zones are physically separate groups of datacenters within each Azure region. When one zone fails, services can fail over to one of the remaining zones.
 
-Failures can range from software and hardware failures to events such as earthquakes, floods, and fires. Tolerance to failures is achieved with redundancy and logical isolation of Azure services. For more detailed information on availability zones in Azure, see [Regions and availability zones](/azure/reliability/availability-zones-overview).
-
-Azure availability zones-enabled services are designed to provide the right level of reliability and flexibility. They can be configured in two ways. They can be either zone redundant, with automatic replication across zones, or zonal, with instances pinned to a specific zone. You can also combine these approaches. For more information on zonal vs. zone-redundant architecture, see [Recommendations for using availability zones and regions](/azure/well-architected/resiliency/regions-availability-zones). 
+For more information on availability zones in Azure, see [What are availability zones?](/azure/reliability/availability-zones-overview).

articles/reliability/includes/reliability-transient-fault-description-include.md

@@ -0,0 +1,14 @@
+---
+ title: include file
+ description: include file
+ author: anaharris-ms
+ ms.service: azure
+ ms.topic: include
+ ms.date: 11/11/2024
+ ms.author: anaharris
+ ms.custom: include file
+---
+
+Transient faults are short, intermittent failures in components. They occur frequently in a distributed environment like the cloud, and they're a normal part of operations. They correct themselves after a short period of time. It's important that your applications handle transient faults, usually by retrying affected requests.
+
+All cloud-hosted applications should follow Azure's transient fault handling guidance when communicating with any cloud-hosted APIs, databases, and other components. To learn more about handling transient faults, see [Recommendations for handing transient faults](/azure/well-architected/reliability/handle-transient-faults).