Merge pull request #164950 from vimeht/master

Create device-update-limits.md

Author: ShannonLeavitt

articles/azure-resource-manager/management/azure-subscription-service-limits.md

@@ -239,6 +239,10 @@ The following table details the features and limits of the Basic, Standard, and
 
 [!INCLUDE [database-migration-service-limits](../../../includes/database-migration-service-limits.md)]
 
+## Device Update for IoT Hub  limits
+
+[!INCLUDE [device-update-for-iot-hub-limits](../../../includes/device-update-for-iot-hub-limits.md)]
+
 ## Digital Twins limits
 
 > [!NOTE]

articles/iot-hub-device-update/device-update-limits.md

@@ -0,0 +1,25 @@
+---
+title: Understand Device Update for IoT Hub limits | Microsoft Docs
+description: Key limits for Device Update for IoT Hub.
+author: vimeht
+ms.author: vimeht
+ms.date: 7/8/2021
+ms.topic: conceptual
+ms.service: iot-hub-device-update
+---
+
+# Device Update for IoT Hub limits
+
+This document provides an overview of the various limits that are imposed on the Device Update for IoT Hub resource and its associated operations. It also indicates whether the limits are adjustable by contacting Microsoft Support or not. 
+
+## Preview limits
+
+During preview, the Device Update for IoT Hub service is provided at no cost to customers. More restrictive limits are imposed during the service's preview offering. These limits
+are expected to change once the service is Generally Available. 
+
+[!INCLUDE [device-update-for-iot-hub-limits](../../includes/device-update-for-iot-hub-limits.md)]
+
+## Next steps
+ 
+- [Create a Device Update for IoT Hub account](create-device-update-account.md)
+- [Troubleshoot common Device Update for IoT Hub issues](troubleshoot-device-update.md)

articles/iot-hub-device-update/index.yml

@@ -41,12 +41,14 @@ landingContent:
           url: device-update-plug-and-play.md
         - text: Understand device update authentication and authorization
           url: device-update-control-access.md
-        - text: Understand device update agent
+        - text: Understand Device Update agent
           url: device-update-agent-overview.md
-        - text: Understand device update importing
+        - text: Understand Device Update importing
           url: import-concepts.md
-        - text: Understand device update groups
+        - text: Understand Device Update groups
           url: device-update-groups.md
+        - text: Understand Device Update limits
+          url: device-update-limits.md
   - title: Developer guide
     linkLists:
     - linkListType: how-to-guide

articles/iot-hub-device-update/toc.yml

@@ -47,6 +47,8 @@ items:
     href: import-concepts.md
   - name: Import-related schema
     href: import-schema.md
+  - name: Device Update limits
+    href: device-update-limits.md
 
 - name: How-to guides
   items:

includes/device-update-for-iot-hub-limits.md

@@ -0,0 +1,38 @@
+---
+author: vimeht
+ms.author: vimeht
+ms.date: 7/8/2021
+ms.topic: include
+ms.service: iot-hub-device-update
+---
+
+ > [!NOTE]
+ > When a given resource or operation doesn't have adjustable limits, the default and the maximum limits are the same.
+ > When the limit can be adjusted, the table includes different values for Default limit and Maximum limit headers. The limit can be raised above the default limit 
+ > but not above the maximum limit.
+ > If you want to raise the limit or quota above the default limit, open an [online customer support request](https://azure.microsoft.com/support/options/).
+
+
+This table provides the limits for the Device Update for IoT Hub resource in Azure Resource Manager:
+
+| Resource |  Default Limit | Maximum Limit | Adjustable? |
+| --- | --- | --- | --- |
+| Accounts per subscription | 2 | 25 | Yes |
+| Instances per account | 2 | 25 | Yes |
+| Length of account name | Minimum: 3 <br/> Maximum: 24 | Minimum: 3 <br/> Maximum: 24 | No |
+| Length of instance name | Minimum: 3 <br/> Maximum: 36 | Minimum: 3 <br/> Maximum: 36 | No |
+
+
+
+This table provides the various limits associated with the operations within Device Update for IoT Hub:
+
+| Operation |  Default Limit | Maximum Limit | Adjustable? |
+| --- | --- | --- | --- |
+| Number of devices per instance | 1,000 | 10,000 | Yes |
+| Number of update providers per instance | 5 | 5 | No |
+| Number of update names per provider per instance | 5 | 5 | No |
+| Number of update versions per update provider and name per instance | 25 | 25 | No |
+| Total number of updates per instance | 100 | 100 | No |
+| Maximum single update file size | 800 MB | 800 MB | No |
+| Maximum combined size of all files in a single import action | 800 MB | 800 MB | No |
+| Number of device groups per instance | 75 | 75 | No |