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Migrate SQL Server Apps to SQL Azure Cloud DB
Session Objectives and Takeaways
• Objectives:
–Overview of SQL Azure Cloud DB
–Migrate application databases to Azure
–Demonstrate database migration from SQL Server
to Cloud
–Application Database Deployment with Data-Tier
Application
SQL Azure Database
SQL Azure Database
Single Logical
Database
Multiple Physical
Replicas
Replica 1
DB
Replica 2
Replica 3
Application
Topologies
SQL Azure Access from outside
SQL Azure access from
within MS Datacenter
(Azure compute)
MS Datacenter
(On-premises)
Application/ Browser
App code/ Tools
App code/ Tools
(ASP.NET)
(ASP.NET)
T-SQL (TDS)
SQL Azure
Code Near
Windows
Azure
Windows
Azure
Data Sync
App
Code
App
Code
SQL Azure
Astoria/REST - EDM
HTTP/S
T-SQL (TDS)
SOAP/REST
HTTP/S
SQL Azure Access from within and outside
MS Datacenter
(On-premises & Azure Compute)
App
Code
App
Code
(ASP.NET)
(ASP.NET)
T-SQL (TDS)
SQL Azure
SQL Azure
Code Far
Hybrid
SQL Azure Database Management
Application Migration from OnPremises SQL Server to SQL Azure
in the Cloud
Database Migration from SQL
Server to SQL Azure
CTP1
(Now)
Introducing SQL Azure Data Sync
”Synchronization of SQL Server and SQL Azure
Databases”
SQL Azure
Database
On-Premises (Headquarters)
Remote Offices
CTP2
Sync
Retail Stores
SQL Azure
Data Sync
On-Premises to Cloud Symmetry
SQL Server to SQL Azure Sync
Benefits
• Makes cloud extension rather
than replacement
• Enables moving workload to
cloud in stages preserving
investment in existing
infrastructure
• New scenarios spanning
enterprise, cloud
SQL
Azure
Sync
SQL Azure to SQL Azure Synchronization
Benefits
• Geo-synchronization
of data across data
centers
• Scale-out read or
read/write
Extending Data to Retail and Remote
Offices
SQL Azure to SQL Server Sync
Benefits
• Share data with remote and retail
offices, bringing data closer to the
end-users
• Lower latency – data access
doesn’t require round trips
• Higher availability – app still runs if
server is unreachable
• Reduced network utilization –
most data access is local
SQL
Azure
Sync End to End Scenarios
http://azure.com
Offline
Applications
On-Premises
Applications
Sync
Sync
SQL Azure Database
http://azure.com
Retail &
Remote
Offices
Data Tier Applications
Data-Tier Application Project
(Departmental apps in V1)
 New feature in SQL Server 2008 R2
 Allows developers to own the database schema
and definitions
 Still needs work (more to come)
 Microsoft seems to have invested deeply to build
this, so it will get better (hopefully)
 Interacts with SQL Azure—this is one method of
deploying application code there
Visual Studio
Build
.dacpac
Deploy
SQL Azure
Software Requirements
What’s in a DACPAC?
Application Deployment to SQL
Azure using Data Tier Applications