Successful Cloud Data Migrations
…And minimize downtime
This post provides a set of best practices to facilitate cloud migrations with minimal downtime and minimal risk, irrespective of the type of cloud service you plan to adopt, focusing on the application data that has to be migrated. Generally databases store application data and change continuously. Application servers, interfacing with the database, can be migrated more easily using a lift and shift approach because they don’t store the data.
In preparation for a cloud migration with minimal downtime there are multiple considerations to take into account:
Especially as a large organization, with possibly hundreds of databases, you want to be able to perform multiple migrations at any one time, make sure performance is adequate, and the setup is manageable.
Migrating to the cloud involves the following steps:
Throughout the migration to the cloud it is important you perform tests to ensure your migration will be successful.
For example: post the initial database load or as systems are synchronized, validate the data and attempt to mimic a load that matches the production load when the application migration is complete.
2. Firewall requirements. HVR’s central installation – the hub – always initiates the communication to talk to the agents. With HVR’s flexibility you can choose where to install the hub – on-premises or in the cloud – and only require the firewall into the other environment to be opened. HVR can also be configured to use its own proxy for an additional layer of access control, and to prevent the requirement to open the firewall to many different network addresses. Communication would always flow through the proxy.
3. SSL encryption is optional for HVR’s communication and highly recommended for cloud scenarios.
5.Thanks to HVR’s rich support for database platforms and versions a technology migration as part of the move to the cloud is trivial.
Six Steps for Cloud Data Migration
Depending on source and target database and version there are other options to perform the initial load, and HVR can work with these as well. Please do note that configuration changes in the setup may have to be implemented if initial load and continuous integration are not both performed by HVR.
Step 5. Compare the data
At this point, also as part of data validation, you may run some reports on the data to get a feel for system performance.
Following are a couple videos demonstrating how you can migrate from an on-premise database to Azure and AWS.
Migration to Azure
Best Practices for Data Integration to AWS
On to the next migration.