Migrate To Azure

Question 1

What are the main four steps in Azure migration framework?

Answer 1

• Access
• Migrate
• Optimize
• Monitor

Question 2

What are the tools and services to help in each step in migration framework?

Answer 2

• Access (3)
  
  • Azure Migration
  • Service Map
  • Azure TCO Calculator
• Migrate (3)
  
  • Azure Migrate
  • Azure Database Migration Service
  • Date Migration Tool
• Optimize (2)
  
  • Azure Cost Management Service
  • Azure Advisor
• Monitor (2)
  
  • Azure Monitor
  • Azure Sentinel

Question 3

What is the main two steps in “Access” step (2)?

What are the things consider in each step?

Answer 3

1) DISCOVER (4)
- What we currently have
- What Performance?
- What Dependencies?
- App Value to the Business

2) ACCESS (4)
- Can IT Move to Cloud
- Right Sizing
- Base on Performance Data.
- Depend on quality of data (Performance Data)
- Data Gathering Duration should be maximize
- Grouping
- Based on Dependencies
- Target Service
- 5’Rs

Question 4

Explain 5’Rs

Answer 4

• Rehost
  
  • Recreate your existing infrastructure in Azure.
• Refactor
  
  • Move services running on virtual machines to platform-as-a-service (PaaS) services.
• Rearchitect
  
  • Cloud Native, containers or microservices.
• Rebuild
  
  • You might need to rebuild software if the cost to rearchitect it is more than that of starting from scratch
• Replace
  
  • Replace by third-party application.

Question 5

What are the suggestions given by Azure Cost Management in Optimize phase?

Answer 5

• performance of underused VMs
• making use of additional discounts
• reserving resources instead of paying as you go
• Azure Advisor also shows you recommendations for network security, high availability, and performance. Review the recommendations that Advisor presents to further optimize your environment.

Question 6

What is Azure Monitor? (2)

Answer 6

• Azure Monitor can capture health and performance information from Azure VMs if you install a Log Analytics agent then set up alerting and reporting.
• Can set up alerts based on a range of data sources, such as:
  • Specific metric values like CPU usage.
  • Specific text in log files.
  • Health metrics.
  • An Auto scale metric.

Question 7

What is Azure Migrate?

Answer 7

• Azure Migrate is a free service, provided by Microsoft, that discovers, assesses, and migrates on-premises systems to Azure.
• The service helps with performance-based sizing calculations (virtual machine sizing, compute/storage) for the machines that you’ll migrate and estimate the ongoing cost of running these machines in Azure.
• Azure Migrate also supports the visualization of dependencies for those machines. It helps you create groups of machines that can be assessed together and migrated to Azure at the same time. Understanding the dependencies gives you confidence that nothing will be left behind.
• Azure Migrate can assess both Hyper-V and VMware-based virtual machines, as well as physical servers.

Question 8

What are the migration steps in Azure Migration (4) ?

Answer 8

1. Virtual machine replication
2. Test migrated virtual machines
3. Migrating the virtual machines into production
4. post-migration steps
   
   • Adding a backup schedule that uses Azure Backup.
   • Replicating the machines to a secondary region using Azure Site Recovery

Question 9

What is Azure Database Migration Service?

Answer 9

Azure Database Migration Service enables online and offline migrations from multiple database sources to Azure data platforms, all with minimal downtime.

Question 10

What is the type of Database Migration(2)?

Answer 10

• Offline Migration
  
  • An offline migration requires shutting down the server at the start of the migration, which means downtime for the service.
• Online Migration
  
  • An online migration uses a continuous synchronization of live data. The online option is the better of the two if you need to minimize downtime for your workload.

Question 11

What are the Azure Database Migration Service Pricing Tiers (2)?

Answer 11

• Standard
  
  • Supports only offline migrations. There’s no charge to use this tier.
• Premium
  
  • Supports both offline and online migrations. There’s no charge for the first six months. After that period, you’ll incur charges.

Question 12

What are the Prerequisites for Database Migration (6)?

Answer 12

• Download the Data Migration Assistant
  
  • Download and install the assistant locally on your on-premises servers running SQL Server.
• Create an Azure Virtual Network instance
  
  • This virtual network is for Azure Database Migration Service when it uses the Azure Resource Manager deployment model. The virtual network provides connectivity to the on-premises environment.
• Configure the network security group
  
  • The security group associated with the new virtual network should allow inbound connectivity to the service via ports 443, 53, 9354, 445, and 12000.
• Configure the Windows Firewall
  
  • You must configure the firewall to allow the Database Migration Service to connect over port 1433. You can also open port 1434 if multiple named instances on dynamic ports exist on the same server
• Configure credentials
  
  • Add CONTROL SERVER permissions to the credentials used to connect to the source SQL Server instance.
  • Add CONTROL DATABASE permission
• Provision your target database in Azure
  
  • Create the database that is to be the target of the migration. Size it appropriately for the migrated workload.