Merge pull request #281162 from flang-msft/fxl---Documentation-Update-for-Automatic-Zone-Allocation-(ZR)

Fxl---documentation update for automatic zone allocation

Author: JamesJBarnett

articles/azure-cache-for-redis/cache-high-availability.md

@@ -5,7 +5,7 @@ author: flang-msft
 
 ms.service: azure-cache-redis
 ms.topic: conceptual
-ms.date: 03/09/2023
+ms.date: 08/05/2024
 ms.author: franlanglois
 ms.custom: references_regions
 ---
@@ -61,16 +61,16 @@ Also, Azure Cache for Redis provides more replica nodes in the Premium tier. A [
 
 ## Zone redundancy
 
-Applicable tiers: **Premium**, **Enterprise**, **Enterprise Flash**
+Applicable tiers: **Standard (preview)**, **Premium (preview)**, **Enterprise**, **Enterprise Flash**
 
 Recommended for: **High availability**, **Disaster recovery - intra region**
 
-Azure Cache for Redis supports zone redundant configurations in the Premium and Enterprise tiers. A zone redundant cache can place its nodes across different Azure Availability Zones in the same region. It eliminates data center or AZ outage as a single point of failure and increases the overall availability of your cache.
-See this article for information on how to set it up.
+Azure Cache for Redis supports zone redundant configurations in the Standard (preview), Premium (preview), and Enterprise tiers. A [zone redundant cache](cache-how-to-zone-redundancy.md) can place its nodes across different [Azure Availability Zones](../reliability/availability-zones-overview.md) in the same region. It eliminates data center or Availability Zone outage as a single point of failure and increases the overall availability of your cache.
 
 If a cache is configured to use two or more zones as described earlier in the article, the cache nodes are created in different zones. When a zone goes down, cache nodes in other zones are available to keep the cache functioning as usual.
 
-Azure Cache for Redis supports zone redundant configurations in the Premium and Enterprise tiers. A [zone redundant cache](cache-how-to-zone-redundancy.md) can place its nodes across different [Azure Availability Zones](../reliability/availability-zones-overview.md) in the same region. It eliminates data center or Availability Zone outage as a single point of failure and increases the overall availability of your cache.
+> [!IMPORTANT]
+> You can now enable _automatic zone allocation_ for all caches in applicable tiers and regions. For more information, see [Enable zone redundancy for Azure Cache for Redis](cache-how-to-zone-redundancy.md).
 
 ### Premium tier
 

articles/azure-cache-for-redis/cache-how-to-zone-redundancy.md

@@ -5,15 +5,15 @@ author: flang-msft
 ms.author: franlanglois
 ms.service: azure-cache-redis
 ms.topic: conceptual
-ms.date: 06/07/2022
+ms.date: 08/05/2024
 
 ---
 
 # Enable zone redundancy for Azure Cache for Redis
 
 In this article, you'll learn how to configure a zone-redundant Azure Cache instance using the Azure portal.
 
-Azure Cache for Redis Standard, Premium, and Enterprise tiers provide built-in redundancy by hosting each cache on two dedicated virtual machines (VMs). Even though these VMs are located in separate [Azure fault and update domains](../virtual-machines/availability.md) and highly available, they're susceptible to datacenter level failures. Azure Cache for Redis also supports zone redundancy in its Premium and Enterprise tiers. A zone-redundant cache runs on VMs spread across multiple [Availability Zones](../reliability/availability-zones-overview.md). It provides higher resilience and availability.
+Azure Cache for Redis Standard (Preview), Premium (Premium), and Enterprise tiers provide built-in redundancy by hosting each cache on two dedicated virtual machines (VMs). Even though these VMs are located in separate [Azure fault and update domains](../virtual-machines/availability.md) and highly available, they're susceptible to datacenter level failures. Azure Cache for Redis also supports zone redundancy in its Standard, Premium and Enterprise tiers. A zone-redundant cache runs on VMs spread across multiple [Availability Zones](../reliability/availability-zones-overview.md). It provides higher resilience and availability.
 
 ## Prerequisites
 
@@ -39,13 +39,19 @@ To create a cache, follow these steps:
     | **Location** | Select a location. | Select a [region](https://azure.microsoft.com/regions/) near other services that will use your cache. |
     | **Cache type** | Select a [Premium or Enterprise tier](https://azure.microsoft.com/pricing/details/cache/) cache. |  The pricing tier determines the size, performance, and features that are available for the cache. For more information, see [Azure Cache for Redis Overview](cache-overview.md). |
 
-1. On the **Advanced** page, for a Premium tier cache, choose **Replica count**.
+1. For Standard or Premium tier cache, select **Advanced** in the Resource menu. To enable zone resiliency with automatic zone allocation, select **(Preview) Select zones automatically**.
 
-    :::image type="content" source="media/cache-how-to-multi-replicas/create-multi-replicas.png" alt-text="Replica count":::
+   :::image type="content" source="media/cache-how-to-zone-redundancy/cache-availability-zone.png" alt-text="Screenshot showing the Advanced tab with a red box around Availability zones.:":::
 
-1. Select **Availability zones**.
+   For an Enterprise tier cache, select **Advanced** in the Resource menu. For **Zone redundancy**, select **Zone redundant (recommended)**.
 
-    :::image type="content" source="media/cache-how-to-zone-redundancy/create-zones.png" alt-text="Availability zones":::
+   :::image type="content" source="media/cache-how-to-zone-redundancy/cache-enterprise-create-zones.png" alt-text="Screenshot showing the Advanced tab with a red box around Zone redundancy.":::
+
+   Automatic zone allocation increases the overall availability of your cache by automatically spreading it across multiple availability zones. Using availability zones makes the cache more resilient to outages in a datacenter. For more information, see [Zone redundancy](cache-high-availability.md#zone-redundancy).
+
+1. Availability zones can be selected manually for Premium tier caches. The count of availability zones must always be less than or equal to the Replica count for the cache.
+
+   :::image type="content" source="media/cache-how-to-zone-redundancy/cache-premium-replica-count.png" alt-text="Screenshot showing Availability zones set to one and Replica count set to three.":::
 
 1. Configure your settings for clustering and/or RDB persistence.  
 
@@ -58,14 +64,11 @@ To create a cache, follow these steps:
 
     It takes a while for the cache to be created. You can monitor progress on the Azure Cache for Redis **Overview** page. When **Status** shows as **Running**, the cache is ready to use.
 
-    > [!NOTE]
-    > Availability zones can't be changed or enabled after a cache is created.
-
 ## Zone Redundancy FAQ
 
 - [Why can't I enable zone redundancy when creating a Premium cache?](#why-cant-i-enable-zone-redundancy-when-creating-a-premium-cache)
 - [Why can't I select all three zones during cache create?](#why-cant-i-select-all-three-zones-during-cache-create)
-- [Can I update my existing Premium cache to use zone redundancy?](#can-i-update-my-existing-premium-cache-to-use-zone-redundancy)
+- Can I update my existing Standard or Premium cache to use zone redundancy?
 - [How much does it cost to replicate my data across Azure Availability Zones?](#how-much-does-it-cost-to-replicate-my-data-across-azure-availability-zones)
 
 ### Why can't I enable zone redundancy when creating a Premium cache?
@@ -76,9 +79,9 @@ Zone redundancy is available only in Azure regions that have Availability Zones.
 
 A Premium cache has one primary and one replica node by default. To configure zone redundancy for more than two Availability Zones, you need to add [more replicas](cache-how-to-multi-replicas.md) to the cache you're creating.
 
-### Can I update my existing Premium cache to use zone redundancy?
+### Can I update my existing Standard or Premium cache to use zone redundancy?
 
-No, updating an existing Premium cache to use zone redundancy isn't supported currently.
+Yes, updating an existing Standard or Premium cache to use zone redundancy is supported. You can enable it by selecting **Allocate Zones automatically** from the **Advanced settings** on the Resource menu. You cannot disable zone redundancy once you have enabled it. 
 
 ### How much does it cost to replicate my data across Azure Availability Zones?
 

articles/azure-cache-for-redis/cache-overview.md

@@ -50,19 +50,19 @@ The [Azure Cache for Redis Pricing](https://azure.microsoft.com/pricing/details/
 
 | Feature Description | Basic | Standard | Premium | Enterprise | Enterprise Flash |
 | ------------------- | :-----: | :------: | :---: | :---: | :---: |
-| [Service Level Agreement (SLA)](https://azure.microsoft.com/support/legal/sla/cache/v1_0/) |-|✔|✔|✔|✔|
-| Data encryption in transit |✔|✔|✔|✔|✔|
-| [Network isolation](cache-private-link.md) |✔|✔|✔|✔|✔|
-| [Scaling](cache-how-to-scale.md) |✔|✔|✔|Preview|Preview|
-| OSS clustering |-|-|✔|✔|✔|
-| [Data persistence](cache-how-to-premium-persistence.md) |-|-|✔|Preview|Preview|
-| [Zone redundancy](cache-how-to-zone-redundancy.md) |-|-|Available|Available|Available|
-| [Geo-replication](cache-how-to-geo-replication.md) |-|-|✔ (Passive) |✔ (Active) |✔ (Active) |
-| [Connection audit logs](cache-monitor-diagnostic-settings.md) |-|-|✔ (Poll-based)|✔ (Event-based)|✔ (Event-based)|
-| [Redis Modules](cache-redis-modules.md) |-|-|-|✔|Preview|
-| [Import/Export](cache-how-to-import-export-data.md) |-|-|✔|✔|✔|
-| [Reboot](cache-administration.md#reboot) |✔|✔|✔|-|-|
-| [Update channel and Schedule updates](cache-administration.md#update-channel-and-schedule-updates) |✔|✔|✔|-|-|
+| [Service Level Agreement (SLA)](https://azure.microsoft.com/support/legal/sla/cache/v1_0/) |No|Yes|Yes|Yes|Yes|
+| Data encryption in transit |Yes|Yes|Yes|Yes|Yes|
+| [Network isolation](cache-private-link.md) |Yes|Yes|Yes|Yes|Yes|
+| [Scaling](cache-how-to-scale.md) |Yes|Yes|Yes|Preview|Preview|
+| OSS clustering |No|No|Yes|Yes|Yes|
+| [Data persistence](cache-how-to-premium-persistence.md) |No|No|Yes|Preview|Preview|
+| [Zone redundancy](cache-how-to-zone-redundancy.md) |No|Preview|Preview|Available|Available|
+| [Geo-replication](cache-how-to-geo-replication.md) |No|No|Yes (Passive) |Yes (Active) |Yes (Active) |
+| [Connection audit logs](cache-monitor-diagnostic-settings.md) |No|No|Yes (Poll-based)|Yes (Event-based)|Yes (Event-based)|
+| [Redis Modules](cache-redis-modules.md) |No|No|No|Yes|Preview|
+| [Import/Export](cache-how-to-import-export-data.md) |No|No|Yes|Yes|Yes|
+| [Reboot](cache-administration.md#reboot) |Yes|Yes|Yes|No|No|
+| [Update channel and Schedule updates](cache-administration.md#update-channel-and-schedule-updates) |Yes|Yes|Yes|No|No|
 
 > [!NOTE]
 > The Enterprise Flash tier currently supports only the RediSearch module (in preview) and the RedisJSON module.

articles/azure-cache-for-redis/cache-whats-new.md

@@ -7,12 +7,18 @@ ms.custom: references_regions
 ms.author: franlanglois
 ms.service: azure-cache-redis
 ms.topic: conceptual
-ms.date: 06/10/2024
+ms.date: 08/05/2024
 
 ---
 
 # What's New in Azure Cache for Redis
 
+## August 2024
+
+### Availability zones
+
+For the Standard and Premium tiers, you can now use availability zones (Preview) with the ability to select zones automatically. With the Standard and Premium, you can choose to have the zones chosen automatically by Azure. With Premium, you can continue to choose your availability zones explicitly.
+
 ## June 2024
 
 ### Redis 7.2 (preview) on the Enterprise tier
@@ -23,7 +29,7 @@ You can upgrade your caches automatically or manually. For more information, see
 
 You are able to manually trigger an upgrade to the latest version of Redis software. This provides two benefits above waiting for the automatic upgrade to occur:
 
-1. You can control when the upgrade occurs. 
+1. You can control when the upgrade occurs.
 1. You can upgrade to preview releases of Redis software.
 
 | **Tier**         | Basic, Standard, Premium                                | Enterprise, Enterprise Flash |