Migrate SQL Workloads to Azure

1. Antonios Chatzipavlis
DATA SOLUTIONS CONSULTANT & TRAINER
Migrate SQL Workloads to Azure
42nd SQL Night
Aug 29, 2020
20:30

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4. 1988 2000 Founderv 6.0 60 +2010
Antonios Chatzipavlis
Data Solutions Consultant & Trainer

5. V.102010 - 2020
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8. Presentation Content
Migrate SQL
workloads
to Azure
• Modernization of Data Platform
• Data Migration Tools
• Migrate to Azure VMs
• Migrate to Azure SQL Databases
• Migrate to Azure SQL MI

9. Modernization of Data Platform

10. Connect / Explore / Learn
Steps to Modernize your Data Platform
Discover Assess Plan
Transform and
Optimize
Test and
Remediate

11. Connect / Explore / Learn
The 7 R Migration Considerations
Discover Assess Plan
Transform and
Optimize
Test and
Remediate
Remain Rehost
Refactor Rearchitect
Rebuild Replace
Retire

12. Connect / Explore / Learn
The 7 R Migration Effort

13. Connect / Explore / Learn
Discovery Stage
Environment Dependencies Workloads

14. Connect / Explore / Learn
Assessment Stage
Migration
Blockers
Breaking
Changes
Azure Features

15. Connect / Explore / Learn
Planning Stage
Features Cost Migration Type

16. Connect / Explore / Learn
Transformation Optimize
Install pre-migration version upgrades
Fix any errors that are identified by the migration
assessment tools
Implement database schema changes
Migrate existing integrated database services into Azure
Handling SSIS workloads in the cloud
Install pre-migration version upgrades
Assess what new features may be available on the target
platform
Re-structure workloads into more cost effective or
performance effective sets
Choose the highest service level and performance tier
during the migration
Ensure workloads are right-sized
Disable auto-statistics during migration
Partition tables and indexes
Drop indexed views and recreate them once finished
Transformation and Optimize

17. Connect / Explore / Learn
Migrate, validate and remediate
Understand your
workload requirements as
a starting point
Select non-critical
workloads or low priority
databases for migration
initially
Run a test migration with
chosen tool
Test database for issues
Test the plan to mitigate
risk associated with
downtime and
compatibility issues
Assess migration tools
based on disruption to
help lower the risk of
database downtime
Repeat issue fixes until
the database is fixed
Continually iterate on
your migration process
Consider the
maintenance windows
that are available to the
application and database
targeted for migration
Take old databases and
application offline
Test third-party
applications
Create new disaster
recovery and
maintenance plans
Use toolsets to give you
greater insight into your
environment and greatly
assist with the migration
process

18. Data Migration Tools

20. Connect / Explore / Learn
Data Sources to Azure Destinations
SQL Server
• Azure SQL
Database
• Azure SQL
Database
Managed
Instance
• SQL Server
on Azure
Virtual
Machines
• SQL Data
Warehouse.
Oracle
• Azure SQL
Database
• Azure
Database for
PostgreSQL
• SQL Data
Warehouse
DB2
• Azure SQL
Database
MySQL
• Azure SQL
Database
• Azure
Database for
MySQL
PostgreSQL
• Azure
Database for
PostgreSQL
MongoDB
• Azure
Cosmos DB
Cassandra
• Azure
Cosmos DB
Access
• Azure SQL
Database
SAP ASE
• Azure SQL
Database
Azure Table
Storage
• Azure
Cosmos DB

21. Connect / Explore / Learn
Microsoft Assessment and Planning Toolkit (MAPS)
Data Migration Assistant (DMA)
Database Experimentation Assistant (DEA)
SQL Server Migration Assistant (SSMA)
Azure Database Migration Service
Migration Tools and Services

22. Connect / Explore / Learn
Download from https://bit.ly/31bBT8B
Remote Administration must be enabled on servers
Collecting inventory data
Performing an inventory of SQL Server database
Generating reports
Microsoft Assessment and Planning Toolkit (MAPS)
Migration Tools and Services

23. Using the MAP Toolkit

24. Connect / Explore / Learn
Download from Microsoft Download Center.
Detecting Compatibility, Blocking, Unsupported issues.
Recommends Performance and Reliability improvements for targets.
Migrates Schema, Data and Object from source to target.
Supported sources are SQL Server 2005/2008/2012/2014/2016/2017 (L/W).
Supported targets are SQL Server 2012/2014/2016/2017 (L/W)/2019 (L/W).
Data Migration Assistant (DMA)
Migration Tools and Services

25. Connect / Explore / Learn
Desktop Application
%ProgramFiles%Microsoft Data Migration Assistantdma.exe.config
Command-Line Utility
%ProgramFiles%Microsoft Data Migration Assistantdmacmd.exe.config
DMA Advanced Configuration
Migration Tools and Services

26. Connect / Explore / Learn
• Don't install and run the Data Migration Assistant directly on the SQL Server
host machine.
• Run assessments on production databases during non-peak times.
• Perform the Compatibility issues and New feature recommendations
assessments separately to reduce the assessment duration.
• Migrate a server during non-peak times.
• When migrating a database, provide a single share location accessible by the
source server and the target server, and avoid a copy operation if possible.
• Enable encrypt connection when connecting to the source and target servers.
DMA Best Practices
Migration Tools and Services

27. Using the Data Migration Assistant

28. Connect / Explore / Learn
Prerequisites
Configuration
Capture
Replay
Analyze
Compare
Cmd Execution
Database Experimentation Assistant (DEA)
Migration Tools and Services
DEA helps you evaluate how the workload on your source server (in your
current environment) will perform in your new environment
https://bit.ly/3iPaZsM

29. SQL Server Migration Assistant for Access
SQL Server Migration Assistant for DB2
SQL Server Migration Assistant for MySQL
SQL Server Migration Assistant for Oracle
SQL Server Migration Assistant for SAP ASE
https://bit.ly/2YevqHI
SQL Server Migration Assistant (SSMA)
Migration Tools and Services

30. Connect / Explore / Learn
Azure Database Migration Service
Migration Tools and Services
Ιs a service that
can be created in
Azure to manage
large scale
migrations from
on-premises
servers to Azure.

31. Migrate to Azure VMs

32. Connect / Explore / Learn
• Full administrative control over the host operating system and the SQL
Server instance that is installed within it.
• Higher costs than other data platform options.
• Full support of all Server components
• Up to 64 TB of storage.
• All the versions and editions of SQL Server are available (100%
compatibility with SQL Server)
Azure SQL Server VM

33. Connect / Explore / Learn
Pre-Migration Considerations
Licensing VM Size Network
Keys
Management
Performance
Management

34. Connect / Explore / Learn
Migration Options
Backup / Restore Detach / Attach Always On AG
Transactional
Replication
DMA BCP Log Shipping
Physical to
Virtual VHDs

35. Connect / Explore / Learn
Post-Migration Considerations
Query Performance Missing Indexes Poor T-SQL
Missing Estimates Security HADR

36. Migrate to Azure SQL Databases

37. Connect / Explore / Learn
PaaS
Single databases
Elastic Pools
Managed Instances
Azure SQL Database
Backup and Recovery
High Availability
Disaster Recovery
Service Scalability
Security
Licensing

38. Connect / Explore / Learn
Migration Options
DMA BACPAC
Transactional
Replication
DMS

39. Migrate to Azure SQL Database
• Using DMA
• Using BACPAC

40. Migrate to Azure SQL MI

41. Connect / Explore / Learn
Backwards Compatibility
Easy Lift and Shift
Full Managed Platform as a Service (PaaS)
Secure Network Isolation
Instance Failover Groups
Azure SQL MI

42. Connect / Explore / Learn
Migration Options
MAP DMS DMA DEA
URL
Backup/Restore
BACPACK BCP SSIS ADF
Transactional
Replication

43. Any
questions

44. Thank you!
@antoniosch - @sqlschool
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Antonios Chatzipavlis
Data Solutions Consultant & Trainer

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