Reorg metrics section.

Author: TimShererWithAquent

articles/bastion/monitor-bastion-reference.md

@@ -16,6 +16,9 @@ See [Monitor Azure Bastion](monitor-bastion.md) for details on the data you can
 
 [!INCLUDE [horz-monitor-ref-metrics-intro](~/reusable-content/ce-skilling/azure/includes/azure-monitor/horizontals/horz-monitor-ref-metrics-intro.md)]
 
+> [!NOTE]
+> We don't recommend that your use *Classic Metrics*.
+
 ### Supported metrics for microsoft.network/bastionHosts
 
 The following table lists the metrics available for the microsoft.network/bastionHosts resource type.
@@ -24,11 +27,14 @@ The following table lists the metrics available for the microsoft.network/bastio
 
 [!INCLUDE [microsoft.network/bastionHosts](~/reusable-content/ce-skilling/azure/includes/azure-monitor/reference/metrics/microsoft-network-bastionhosts-metrics-include.md)]
 
-The following sections give details about the metrics in the preceding table.
+> [!NOTE]
+> The Bastion Communication Status metric only applies to Azure Bastion hosts deployed after November 2020.
 
-### <a name="availability"></a>Availability metrics
+### Metrics details
+
+The following sections give details about the metrics in the preceding table.
 
-#### <a name="communication-status"></a>Bastion communication status
+#### Bastion communication status
 
 You can view the communication status of Azure Bastion, aggregated across all instances comprising the bastion host.
 
@@ -37,39 +43,45 @@ You can view the communication status of Azure Bastion, aggregated across all in
 
 :::image type="content" source="./media/metrics-monitor-alert/communication-status.png" alt-text="Screenshot that shows the communication status metric in the Azure portal.":::
 
-#### <a name="total-memory"></a>Total memory
+Bastion communication status is an Availability metric.
+
+#### Session count
+
+You can view the count of active sessions per bastion instance, aggregated across each session type (RDP and SSH). Each Azure Bastion can support a range of active RDP and SSH sessions. Monitoring this metric helps you to understand if you need to adjust the number of instances running the bastion service. For more information about the session count Azure Bastion can support, see the [Azure Bastion FAQ](bastion-faq.md).
+
+The recommended values for this metric's configuration are:
+
+- **Aggregation:** Avg
+- **Granularity:** 5 or 15 minutes
+- Splitting by instances is recommended to get a more accurate count
+
+:::image type="content" source="./media/metrics-monitor-alert/session-count.png" alt-text="Screenshot that shows the session count metric in the Azure portal.":::
+
+Session count is a Traffic metric.
+
+#### Total memory
 
 You can view the total memory of Azure Bastion, split across each bastion instance.
 
 :::image type="content" source="./media/metrics-monitor-alert/total-memory.png" alt-text="Screenshot that shows the total memory metric in the Azure portal.":::
 
-### <a name="traffic"></a>Traffic metrics
+Total memory is a Saturation metric.
 
-#### <a name="used-cpu"></a>Used CPU
+#### CPU usage
 
 You can view the CPU utilization of Azure Bastion, split across each bastion instance. Monitoring this metric helps gauge the availability and capacity of the instances that comprise Azure Bastion.
 
 :::image type="content" source="./media/metrics-monitor-alert/used-cpu.png" alt-text="Screenshot that shows the CPU used metric in the Azure portal.":::
 
-#### <a name="used-memory"></a>Used memory
+CPU usage is a Saturation metric.
+
+#### Memory usage
 
 You can view memory utilization across each bastion instance, split across each bastion instance. Monitoring this metric helps gauge the availability and capacity of the instances that comprise Azure Bastion.
 
 :::image type="content" source="./media/metrics-monitor-alert/used-memory.png" alt-text="Screenshot that shows the memory used metric in the Azure portal.":::
 
-### <a name="performance"></a>Performance metrics
-
-#### Session count
-
-You can view the count of active sessions per bastion instance, aggregated across each session type (RDP and SSH). Each Azure Bastion can support a range of active RDP and SSH sessions. Monitoring this metric helps you to understand if you need to adjust the number of instances running the bastion service. For more information about the session count Azure Bastion can support, see the [Azure Bastion FAQ](bastion-faq.md).
-
-The recommended values for this metric's configuration are:
-
-- **Aggregation:** Avg
-- **Granularity:** 5 or 15 minutes
-- Splitting by instances is recommended to get a more accurate count
-
-:::image type="content" source="./media/metrics-monitor-alert/session-count.png" alt-text="Screenshot that shows the session count metric in the Azure portal.":::
+Memory usage is a Saturation metric.
 
 [!INCLUDE [horz-monitor-ref-metrics-dimensions-intro](~/reusable-content/ce-skilling/azure/includes/azure-monitor/horizontals/horz-monitor-ref-metrics-dimensions-intro.md)]