Cloud Migration: What You Need to Know
In recent years, cloud computing has taken the business world by storm. According to a report from Gartner, the worldwide public cloud services market is projected to grow 17.5 percent in 2019 alone, reaching a total value of $214.3 billion. With such rapid growth and widespread adoption, it’s clear that cloud computing isn’t just a passing trend – it’s here to stay.
For businesses considering making the switch to the cloud, there are many benefits to be gained – increased scalability and flexibility, reduced IT costs, and improved data security are just a few examples. However, migrating your data and applications to the cloud can also be complex and time-consuming if not done properly.
In this post, we’ll take an in-depth look at what you need to know about cloud migration.
Why Migrate?
Before delving into how to migrate your data and applications to the cloud effectively, it’s important first to understand why you might want or need to make this move in the first place.
1. Scalability
One of the most significant advantages of migrating your infrastructure and applications into a public or private cloud environment is scalability. Cloud service providers offer on-demand resources that allow companies of all sizes access only what they require when they need it most. This means that businesses can quickly scale up or down as needed without worrying about overprovisioning their IT infrastructure.
2. Cost Savings
By leveraging shared infrastructure provided by third-party vendors instead of building out their own hardware systems in-house, organizations can save money on IT infrastructure investment costs while cutting back on operational expenses like energy consumption as well as maintenance fees for software updates/hardware upgrades.
3. Improved Security
The security features offered by modern-day clouds are often much more advanced than those available with traditional client-server models since these providers have invested heavily in cybersecurity measures across their platforms/applications/services – which include everything from firewalls and intrusion detection/prevention systems to data encryption/backup and disaster recovery.
4. Accessibility
Cloud computing makes it easy for employees to access their work applications and files from any device with an internet connection, allowing them to work remotely or on-the-go. This is particularly useful in today’s mobile-first world where people are increasingly working outside of traditional office environments.
5. Agility
In the cloud, businesses can quickly spin-up new servers and services as needed without having to worry about procuring hardware, negotiating contracts with vendors or dealing with other time-consuming administrative tasks.
6. Innovation
The cloud environment fosters innovation by providing companies access to cutting-edge tools that they may not have been able to afford otherwise (such as machine learning, big data analytics) – helping them stay competitive in today’s fast-paced business landscape.
Types of Cloud Migration
There are three primary types of cloud migration: Lift-and-shift migration, Re-platforming migration, and Refactoring migration.
1. Lift-and-Shift Migration
This type of migration involves moving your existing infrastructure (including servers, databases, applications) into a cloud environment without making any significant changes or upgrades. Companies choose this method when they want a quick move into the cloud with minimal effort but don’t necessarily need all the benefits that come along with more advanced migrations like re-platforming/refactoring solutions.
2. Re-platforming Migration
Replatforming refers to migrating an application’s underlying architecture while keeping its core functionality intact – essentially upgrading it from one platform or database management system (DBMS) technology stack onto another within a public/private/hybrid cloud environment). This approach allows businesses to take advantage of new features provided by their chosen provider while maintaining familiar interfaces/APIs for developers/users alike – reducing disruption during transition periods between old/new systems.
3. Refactoring Migration
Refactoring is when you take an application’s code base entirely apart and rebuild it using modern architectures or technologies. This migration approach is the most complex and time-consuming, but it provides the highest degree of agility, scalability, and flexibility.
The Migration Process
The process of migrating to the cloud can be summarized in eight steps:
1. Evaluate Your Current Infrastructure
Before moving to the cloud, you need to evaluate your existing infrastructure thoroughly. Identify which applications are critical to your business operations and which ones you can do without. It’s also essential to understand how these applications interact with each other and their dependencies on external systems.
2. Choose Your Cloud Provider
Choosing a cloud provider is an important decision that requires careful consideration of factors such as pricing models, service-level agreements (SLAs), scalability options, security features/encryption requirements and data residency/regulatory compliance needs.
3. Select Migration Tools
To help facilitate successful migrations into public/private/hybrid clouds – many vendors offer migration tools that automate much of this process by converting your existing workloads into compatible formats for deployment onto their platforms (e.g., Amazon Web Services’ AWS Server Migration Service).
4. Plan Your Migration Strategy
Your migration strategy should include determining what you want to move first based on risk tolerance levels before establishing a timeline and creating a detailed project plan with milestones/deadlines – so everyone knows what’s expected when it comes time for testing/debugging new systems post-migration day(s).
5. Test Compatibility between Applications & Cloud Environment
It’s imperative that companies test any application compatibility issues with their chosen cloud environment before doing anything else – ensuring everything works correctly once migrated over fully.
6. Migrate Data & Applications
Once compatibility testing has been completed successfully – start migrating data/applications according to pre-determined timelines/milestones established during step 4 above while monitoring progress throughout each phase along the way.
7. Validate Post-Migration Systems Functionality
After migrating all components in question from source environments into target environments (cloud-based), perform thorough testing to ensure everything is working correctly – including the performance of applications, security protocols, etc.
8. Optimize & Refine
Once you have successfully migrated your data and applications to the cloud environment, take time to optimize/refine them further over time as necessary. This will help you get the most out of your new platform while keeping costs low.
Conclusion
Migrating to the cloud can be a complex process that requires careful planning and execution. However, by understanding what types of migrations are available and following best practices throughout each step along with way – businesses can gain significant advantages like improved scalability, reduced IT costs/operational expenses as well as better data security/accessibility/agility/innovation capabilities overall.
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Cloud computing has taken the business world by storm and provides many benefits such as increased scalability, reduced IT costs, and improved security. There are three primary types of cloud migration: Lift-and-shift migration, Re-platforming migration, and Refactoring migration. The process of migrating to the cloud requires eight steps, including evaluating current infrastructure, choosing a cloud provider, selecting migration tools, planning migration strategy, testing compatibility, migrating data and applications, validating post-migration, and optimizing and refining.
Wayne