acrolinx

Author: stevestein

articles/sql-database/sql-database-technical-overview.md

@@ -16,7 +16,7 @@ ms.date: 04/08/2019
 
 # What is the Azure SQL Database service?
 
-Azure SQL Database is a fully managed Platform as a Service (PaaS) Database Engine that handles most of the database management functions such as upgrading, patching, backups, and monitoring without user involvement. Azure SQL Database is always running on the latest stable version of SQL Server Database Engine and patched OS with 99.99% availability. PaaS capabilities that are built-in into Azure SQL database enable you to focus on the domain specific database administration and optimization activities that are critical for your business.
+Azure SQL Database is a fully managed Platform as a Service (PaaS) Database Engine that handles most of the database management functions such as upgrading, patching, backups, and monitoring without user involvement. Azure SQL Database is always running on the latest stable version of SQL Server Database Engine and patched OS with 99.99% availability. PaaS capabilities that are built into Azure SQL database enables you to focus on the domain-specific database administration and optimization activities that are critical for your business.
 
 With Azure SQL Database, you can create a highly available and high-performance data storage layer for the applications and solutions in Azure. SQL Database can be the right choice for a variety of modern cloud applications because it enables you to process both relational data and [non-relational structures](sql-database-multi-model-features.md), such as graphs, JSON, spatial, and XML.
 
@@ -65,7 +65,7 @@ SQL Database offers the following purchasing models:
 Azure SQL Database offers three service tiers that are designed for different types of applications:
 - [General Purpose/Standard](sql-database-service-tier-general-purpose.md) service tier designed for common workloads. It offers budget-oriented balanced compute and storage options.
 - [Business Critical/Premium](sql-database-service-tier-business-critical.md) service tier designed for OLTP applications with high transaction rate and lowest-latency I/O. It offers the highest resilience to failures by using several isolated replicas.
-- [Hyperscale](sql-database-service-tier-hyperscale.md) service tier designed for very large OLTP database and the ability to auto-scale storage and scale compute fluidly.    
+- [Hyperscale](sql-database-service-tier-hyperscale.md) service tier designed for very large OLTP database and the ability to autoscale storage and scale compute fluidly.    
 
 ### Elastic pools to maximize resource utilization
 
@@ -106,9 +106,9 @@ Azure provides [built-in performance monitoring](sql-database-performance-guidan
 
 Azure SQL Database enables your business to continue operating during disruptions. In a traditional SQL Server environment, you generally have at least two machines locally set up. These machines have exact, synchronously maintained, copies of the data to protect against a failure of a single machine or component. This environment provides high availability, but it doesn't protect against a natural disaster destroying your datacenter.
 
-Disaster recovery assumes that a catastrophic event is geogrfbackaphically localized enough to have another machine or set of machines with a copy of your data far away. In SQL Server, you can use Always On Availability Groups running in async mode to get this capability. People often don't want to wait for replication to happen that far away before committing a transaction, so there's potential for data loss when you do unplanned failovers.
+Disaster recovery assumes that a catastrophic event is geographically localized enough to have another machine or set of machines with a copy of your data far away. In SQL Server, you can use Always On Availability Groups running in async mode to get this capability. People often don't want to wait for replication to happen that far away before committing a transaction, so there's potential for data loss when you do unplanned failovers.
 
-Databases in the premium and business critical service tiers already [do something very similar](sql-database-high-availability.md#premium-and-business-critical-service-tier-availability) to the synchronization of an availability group. Databases in lower service tiers provide redundancy through storage by using a [different but equivalent mechanism](sql-database-high-availability.md#basic-standard-and-general-purpose-service-tier-availability). Built-in logic helps protect against a single machine failure. The active geo-replication feature gives you the ability to protect against disaster where a whole region is destroyed.
+Databases in the premium and business critical service tiers already [do something similar](sql-database-high-availability.md#premium-and-business-critical-service-tier-availability) to the synchronization of an availability group. Databases in lower service tiers provide redundancy through storage by using a [different but equivalent mechanism](sql-database-high-availability.md#basic-standard-and-general-purpose-service-tier-availability). Built-in logic helps protect against a single machine failure. The active geo-replication feature gives you the ability to protect against disaster where a whole region is destroyed.
 
 Azure Availability Zones tries to protect against the outage of a single datacenter building within a single region. It helps you protect against the loss of power or network to a building. In SQL Database, you place the different replicas in different availability zones (different buildings, effectively).