In today's competitive IT environment,
organizations are reducing development and maintenance costs and it is critical
to know when to adopt new technology and when to keep current applications in
place. Businesses are looking for a right path to reduce costs and improve the
accessibility of legacy applications.
As
the market is moving fast with business scenario, companies globally are facing many challenges which require them
to update their applications and legacy systems with latest technologies.
Application migration moves applications quickly and efficiently to modern platforms
with modernized architectures and designs by preserving its same original goals.
Migrating legacy applications to a
cloud
Following a protocol helps
companies modernize infrastructure at ease for an effective business
continuity. Moving legacy applications on dedicated server to virtual servers involve
significant steps as provided by an Infrastructure as a Service (IaaS) cloud provider.
Test
the performance
Before
migrating, check out the features available on new virtualized environment and
it is important to understand the performance characteristics of your application;
a virtualized server has huge benefits when compared to dedicated server
hardware and performs in different ways for better output. After analysis of
the new virtual server, compare it with old dedicated server and also check how
it can save your performance time and pricing. Make sure to check out how your current system works
can help avoid painful migration issues.
Determine
target architecture
Depending
on the analysis of virtual environment performance characteristics, we can
determine what the target architecture will be. We can observe that a significant degree of performance
interference exists when we run certain types of applications on shared
hardware at the same time. In addition, examine workflow dependencies
along with security to ensure a smart schedule for the migration.
Later,
we can start creating server images. Few virtualization systems allows for
creating virtual images depending on the physical hardware. This may be desirable, or it
may be better to start fresh by creating images of base operating system installations
and configuring those as required for the target application. Just as in a
dedicated hardware environment, these server images should be locked down for
security with patches installed and unneeded services disabled.
Testing
of New Application
After
the virtual environment is configured and all the server images are created,
now we can test the new application, whether the features & security are up
to the expected levels in new virtualized environment and also check the load
and performance of the environment as these are critical for the application
because we have noted that, system and application performance in a virtualized environment
could be different from dedicated hardware.
Roll
Over
Once
everything is performing well set with targets in the new, start migrating data
to virtual server and we can start using the services of the new system. Later
have a look at the newly installed application to determine if the new environment is behaving as
expected.
There
are different types of migration when it comes to your infrastructure
reconstruction. Keep an eye here to not miss on some valuable insights for your
company on the following types of migration, which will be elaborated in the future
posts
- Java Migration
- .Net Migration
- Oracle Migration
- Database Migration
