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What is Data Migration?

Data migration refers to the process of moving, transferring or shifting the data from one location to another. It is considered a very important process in today's IT industry and every project whether big or small is designed in such a way as to offer maximum flexibility for data migration. As data production can never be halted, similarly, data can never stay static. It means that it cannot stay at the same location for its whole lifetime. This is why we perform data migration.

In this article, we will discuss the importance and working of data migration. We will explain to you the different types of data migration and try to learn the difference between data migration and data integration. We will state the challenges of data migration and finally, we will talk a little about StarWind Virtual Tape Library (VTL).

Why is it Important to Migrate the Data?

Data migration is considered important because of the following reasons:

➢        You might want to replace your hardware devices on which your data resides because of device failures.

➢        You might want to update or maintain your servers or databases that are housing your data.

➢        You might want to recover your data from a location after being struck by a disaster.

➢        You might want to relocate your whole data center because of which you need to move your data somewhere else.

Working of Data Migration:

Data migration essentially works by moving the data from one storage location to another. This process involves three basic steps, which are as follows:

●       Planning: Planning refers to that phase of data migration in which you analyze the source, destination, and the actual data and devise the necessary requirements for the successful completion of data migration.

●       Migration: As the name implies, the migration refers to the actual implementation of the data migration process in which data is displaced from the source to the destination.

●       Post-Migration: Post-migration is the stage after the migration process and it involves the validation and verification of the migrated data. This step ensures that the migration process has been carried out successfully.

What are the Different Types of Data Migration?

The main types of data migration are listed below:

➢        Storage Migration: Storage migration refers to the process of changing the underlying storage medium on which your data resides.

➢        Database Migration: Database migration means shifting the data from one database to another. For example, you can migrate your data from SQL database to Oracle database.

➢        Application Migration: Application migration refers to the process of changing your application vendor or the platform on which it operates.

Data Migration vs Data Integration:

Many people often confuse data integration with data migration. To clear this ambiguity, we will state the definitions of both the processes. Data integration is the continuous combining of already existing data with the newly generated data whereas data migration means shifting a complete dataset from one location to another.

Challenges of Data Migration:

The major challenges of data migration are as follows:

●       It is a time-consuming process.

●       It can be a cause of application and server downtime.

●       An unplanned data migration can lead to data corruption and data loss.

Virtual Tape Library (VTL):

Virtual Tape Library (VTL) is designed for the organizations who want to leave costly tape backup processes without disrupting the established data archival and retention processes. This product takes a minimal time to set up and it integrates seamlessly into any backup infrastructure. The biggest advantage of VTL is that it offers a very easier migration of data between different storage mediums. 

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