Merge pull request #110822 from dimitri-furman/dimitri-furman

Added a note on dense pools

Author: PRMerger17

articles/sql-database/sql-database-elastic-pool.md

@@ -10,7 +10,7 @@ ms.topic: conceptual
 author: oslake
 ms.author: moslake
 ms.reviewer: ninarn, carlrab
-ms.date: 08/06/2019
+ms.date: 04/09/2020
 ---
 # Elastic pools help you manage and scale multiple Azure SQL databases
 
@@ -104,9 +104,9 @@ The best size for a pool depends on the aggregate resources needed for all datab
 - Maximum resources utilized by all databases in the pool (either maximum DTUs or maximum vCores depending on your choice of resourcing model).
 - Maximum storage bytes utilized by all databases in the pool.
 
-For available service tiers for each resource model, see the [DTU-based purchasing model](sql-database-service-tiers-dtu.md) or the [vCore-based purchasing model](sql-database-service-tiers-vcore.md).
+For available service tiers and limits for each resource model, see the [DTU-based purchasing model](sql-database-service-tiers-dtu.md) or the [vCore-based purchasing model](sql-database-service-tiers-vcore.md).
 
-In cases where you can't use tooling, the following step-by-step can help you estimate whether a pool is more cost-effective than single databases:
+The following steps can help you estimate whether a pool is more cost-effective than single databases:
 
 1. Estimate the eDTUs or vCores needed for the pool as follows:
 
@@ -123,6 +123,10 @@ In cases where you can't use tooling, the following step-by-step can help you es
 4. See the [SQL Database pricing page](https://azure.microsoft.com/pricing/details/sql-database/) and find the smallest pool size that is greater than the estimate from Step 3.
 5. Compare the pool price from Step 5 to the price of using the appropriate compute sizes for single databases.
 
+> [!IMPORTANT]
+> If the number of databases in a pool approaches the maximum supported, make sure to consider [Resource management in dense elastic pools](sql-database-elastic-pool-resource-management.md).
+> 
+
 ## Using other SQL Database features with elastic pools
 
 ### Elastic jobs and elastic pools
@@ -212,9 +216,9 @@ For more information, see [create SQL Database alerts in Azure portal](sql-datab
 
   Umbraco uses elastic pools with Azure SQL Database to quickly provision and scale services for thousands of tenants in the cloud.
 
-- [Daxko/CSI](https://customers.microsoft.com/story/726277-csi-daxko-partner-professional-service-azure)	
+- [Daxko/CSI](https://customers.microsoft.com/story/726277-csi-daxko-partner-professional-service-azure)    
 
-   Daxko/CSI uses elastic pools with Azure SQL Database to accelerate its development cycle and to enhance its customer services and performance.	
+   Daxko/CSI uses elastic pools with Azure SQL Database to accelerate its development cycle and to enhance its customer services and performance.    
 
 ## Next steps