Updates from PG review

Author: johndowns

articles/reliability/includes/storage/reliability-storage-availability-zone-down-experience-include.md

@@ -9,10 +9,12 @@
  ms.custom: include file
 ---
 
-- **Detection and response:** Microsoft automatically detects zone failures and initiates failover processes. No customer action is required for zone-redundant storage accounts.
+- **Detection and response:** Microsoft automatically detects zone failures and initiates recovery processes. No customer action is required for zone-redundant storage accounts.
 
-- **Active requests:** In-flight requests might be dropped during the failover and should be retried. Applications should [implement retry logic](#transient-faults) to handle these temporary interruptions.
+    If a zone becomes unavailable, Azure undertakes networking updates such as Domain Name System (DNS) repointing.
+
+- **Active requests:** In-flight requests might be dropped during the recovery process and should be retried. Applications should [implement retry logic](#transient-faults) to handle these temporary interruptions.
 
 - **Expected data loss:** No data loss occurs during zone failures because data is synchronously replicated across multiple zones before write operations complete.
 
-- **Expected downtime:** A small amount of downtime - typically, a few seconds - may occur during automatic failover as traffic is redirected to healthy zones.
+- **Expected downtime:** A small amount of downtime - typically, a few seconds - may occur during automatic recovery as traffic is redirected to healthy zones. When designing applications for ZRS, follow practices for [transient fault handling](#transient-faults), including implementing retry policies with exponential back-off.

articles/reliability/includes/storage/reliability-storage-availability-zone-failback-include.md

@@ -9,4 +9,4 @@
  ms.custom: include file
 ---
 
-When the failed availability zone recovers, Azure Storage automatically restores normal operations across all of the availability zones. During failback, the service automatically ensures data consistency by synchronizing any operations that occurred during the outage period.
+When the failed availability zone recovers, Azure Storage automatically restores normal operations across all of the availability zones. The service automatically ensures data consistency by synchronizing any operations that occurred during the outage period.

articles/reliability/includes/storage/reliability-storage-availability-zone-testing-include.md

@@ -9,4 +9,4 @@
  ms.custom: include file
 ---
 
-Azure Storage manages replication, traffic routing, failover, and failback for zone-redundant storage. Because this feature is fully managed, you don't need to initiate or validate availability zone failure processes.
+When you use ZRS, Azure Storage manages replication, traffic routing, and zone-down responses automatically. Because this feature is fully managed, you don't need to initiate or validate availability zone failure processes.

articles/reliability/reliability-storage-blob.md

@@ -84,9 +84,9 @@ This section describes what to expect when a blob storage account is configured
 
 [!INCLUDE [Storage - Zone down experience](includes/storage/reliability-storage-availability-zone-down-experience-include.md)]
 
-- **Traffic rerouting.** Azure automatically reroutes traffic to the remaining healthy availability zones. The service maintains full functionality using the surviving zones with no customer intervention required.
+- **Traffic rerouting.** If a zone becomes unavailable, Azure undertakes networking updates such as Domain Name System (DNS) repointing, so that requests are directed to the remaining healthy availability zones. The service maintains full functionality using the surviving zones with no customer intervention required.
 
-### Failback
+### Zone recovery
 
 [!INCLUDE [Storage - Zone failback](includes/storage/reliability-storage-availability-zone-failback-include.md)]