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Author: CarlRabeler

articles/sql-database/sql-database-what-is-a-dtu.md

@@ -23,14 +23,14 @@ ms.author: carlrab
 This article explains Database Transaction Units (DTUs) and elastic Database Transaction Units (eDTUs) and what happens when you hit the maximum DTUs or eDTUs.  
 
 ## What are Database Transaction Units (DTUs)
-A DTU is a unit of measure of the resources that are guaranteed to be available to a standalone Azure SQL database at a specific performance level within a [standalone database service tier](sql-database-service-tiers.md#standalone-database-service-tiers-and-performance-levels). A DTU is a blended measure of CPU, memory, and data I/O and transaction log I/O in a ratio determined by an OLTP benchmark workload designed to be typical of real-world OLTP workloads. Doubling the DTUs by increasing the performance level of a database equates to doubling the set of resource available to that database. For example, a Premium P11 database with 1750 DTUs provides 350x more DTU compute power than a Basic database with 5 DTUs. To understand the methodology behind the OLTP benchmark workload used to determine the DTU blend, see [SQL Database benchmark overview](sql-database-benchmark-overview.md).
+A DTU is a unit of measure of the resources that are guaranteed to be available to a standalone Azure SQL database at a specific performance level within a [standalone database service tier](sql-database-service-tiers.md#single-database-service-tiers-and-performance-levels). A DTU is a blended measure of CPU, memory, and data I/O and transaction log I/O in a ratio determined by an OLTP benchmark workload designed to be typical of real-world OLTP workloads. Doubling the DTUs by increasing the performance level of a database equates to doubling the set of resource available to that database. For example, a Premium P11 database with 1750 DTUs provides 350x more DTU compute power than a Basic database with 5 DTUs. To understand the methodology behind the OLTP benchmark workload used to determine the DTU blend, see [SQL Database benchmark overview](sql-database-benchmark-overview.md).
 
 ![Intro to SQL Database: Single database DTUs by tier and level](./media/sql-database-what-is-a-dtu/single_db_dtus.png)
 
 You can [change service tiers](sql-database-scale-up.md) at any time with minimal downtime to your application (generally averaging under four seconds). For many businesses and apps, being able to create databases and dial single database performance up or down on demand is enough, especially if usage patterns are relatively predictable. But if you have unpredictable usage patterns, it can make it hard to manage costs and your business model. For this scenario, you use an elastic pool with a certain number of eDTUs.
 
 ## What are elastic Database Transaction Units (eDTUs)
-An eDTU is a unit of measure of the set of resources (DTUs) that can be shared between a set of databases on an Azure SQL server - called an [elastic pool](sql-database-elastic-pool.md). Elastic pools provide a simple cost effective solution to manage the performance goals for multiple databases that have widely varying and unpredictable usage patterns. See [elastic pools and service tiers](sql-database-service-tiers.md#elastic-pool-service-tiers-and-performance-in-edtus) for more information.
+An eDTU is a unit of measure of the set of resources (DTUs) that can be shared between a set of databases on an Azure SQL server - called an [elastic pool](sql-database-elastic-pool.md). Elastic pools provide a simple cost effective solution to manage the performance goals for multiple databases that have widely varying and unpredictable usage patterns. See [elastic pools and service tiers](sql-database-service-tiers.md#elastic-database-pool-service-tiers-and-performance-in-edtus) for more information.
 
 ![Intro to SQL Database: eDTUs by tier and level](./media/sql-database-what-is-a-dtu/sqldb_elastic_pools.png)