Merge pull request #115171 from bwren/am-issues

Azure Monitor multiple minor issues

Author: ShannonLeavitt

articles/azure-monitor/insights/ad-assessment.md

@@ -32,8 +32,8 @@ After you've added the solution and a check is completed, summary information fo
 ## Prerequisites
 
 * The Active Directory Health Check solution requires a supported version of .NET Framework 4.6.2 or above installed on each computer that has the Log Analytics agent for Windows (also referred to as the Microsoft Monitoring Agent (MMA)) installed.  The agent is used by System Center 2016 - Operations Manager, Operations Manager 2012 R2, and Azure Monitor.
-* The solution supports domain controllers running Windows Server 2008 and 2008 R2, Windows Server 2012 and 2012 R2, and Windows Server 2016.
-* A Log Analytics workspace to add the Active Directory Health Check solution from the Azure marketplace in the Azure portal. There is no additional configuration required.
+* The solution supports domain controllers running Windows Server 2008 and 2008 R2, Windows Server 2012 and 2012 R2, Windows Server 2016, and Windows Server 2019.
+* A Log Analytics workspace to add the Active Directory Health Check solution from the Azure Marketplace in the Azure portal. There is no additional configuration required.
 
   > [!NOTE]
   > After you've added the solution, the AdvisorAssessment.exe file is added to servers with agents. Configuration data is read and then sent to Azure Monitor in the cloud for processing. Logic is applied to the received data and the cloud service records the data.

articles/azure-monitor/insights/vminsights-performance.md

@@ -5,14 +5,20 @@ ms.subservice:
 ms.topic: conceptual
 author: bwren
 ms.author: bwren
-ms.date: 10/15/2019
+ms.date: 05/31/2020
 
 ---
 
 # How to chart performance with Azure Monitor for VMs
 
 Azure Monitor for VMs includes a set of performance charts that target several key performance indicators (KPIs) to help you determine how well a virtual machine is performing. The charts show resource utilization over a period of time so you can identify bottlenecks, anomalies, or switch to a perspective listing each machine to view resource utilization based on the metric selected. While there are numerous elements to consider when dealing with performance, Azure Monitor for VMs monitors key operating system performance indicators related to processor, memory, network adapter, and disk utilization. Performance complements the health monitoring feature and helps expose issues that indicate a possible system component failure, support tuning and optimization to achieve efficiency, or support capacity planning.  
 
+## Limitations
+Following are limitations in performance collection with Azure Monitor for VMs.
+
+- **Available memory** is not available for virtual machines running Red Hat Linux (RHEL) 6. This metric is calculated from **MemAvailable** which was introduced in RHEL 7.
+- Metrics are only available for data disks on Linux virtual machines using EXT filesystem family (EXT2, EXT3, EXT4).
+
 ## Multi-VM perspective from Azure Monitor
 
 From Azure Monitor, the Performance feature provides a view of all monitored VMs deployed across workgroups in your subscriptions or in your environment. To access from Azure Monitor, perform the following steps. 

articles/azure-monitor/platform/log-analytics-agent.md

@@ -87,7 +87,7 @@ The following versions of the Windows operating system are officially supported
 * Windows Server 2016, version 1709 and 1803
 * Windows Server 2012, 2012 R2
 * Windows Server 2008 SP2 (x64), 2008 R2
-* Windows 10 Enterprise and Pro
+* Windows 10 Enterprise (including multi-session) and Pro
 * Windows 8 Enterprise and Pro 
 * Windows 7 SP1