Skip to main content

Broad Approaches to Migrating

The first step towards building a strong cloud strategy is planning the migration of the existing applications to the cloud. This task requires much effort, the right skill set and planning. There are three common approaches to migrate the on-premises applications to the cloud. They are:

1. Lift and Shift

As the name suggests, the Lift and Shift approach involves the exact replication of the in-house applications in the cloud. There is no change made to the code or the design of applications. It involves much lesser time, cost and complexity when compared to other methods. However, applications migrated to the cloud using this technique do not take complete advantage of the native cloud capabilities. Storage infrastructure and disaster recovery are common applications migrated using this approach.

2. Refactoring

Refactoring refers to changes made in the structure of the source code of the application in order to make it more efficient. The code is modified such that it becomes more scalable and reusable without changing the functions of the application. In other words, this approach to cloud migration adheres to the concept of get-something-working-now-and-perfect-it-later.

3. Modernization

The modernization application approach to cloud computing redesigns the application from ground up, thus making it completely flexible for the cloud environment. While superficially this procedure may seem expensive or complex, the new applications provide maximized benefits through decreasing the costs substantially.

Comments

Post a Comment

thank you for visiting :)

Popular posts from this blog

The Seven-Step Model of Migration

Irrespective of the migration approach adopted, the Seven-step Model of Cloud Migration creates a more rational point of view towards the migration process and offers the ability to imbibe several best practices throughout the journey Step 1: Assess Cloud migration assessments are conducted to understand the complexities in the migration process at the code, design and architectural levels. The investment and the recurring costs are also evaluated along with gauging the tools, test cases, functionalities and other features related to the configuration. Step 2: Isolate The applications to be migrated to the cloud from the internal data center are freed of dependencies pertaining to the environment and the existing system. This step cuts a clearer picture about the complexity of the migration process. Step 3: Map Most organisations hold a detailed mapping of their environment with all the systems and applications. This information can be used to distinguish between the
Post a Comment
Read more

Special Permissions in linux

The setuid permission on an executable file means that the command will run as the user owning the file, not as the user that ran the command. One example is the passwd command: [student@desktopX ~]$ ls -l /usr/bin/passwd -rw s r-xr-x. 1 root root 35504 Jul 16 2010 /usr/bin/passwd In a long listing, you can spot the setuid permissions by a lowercase s where you would normally expect the x (owner execute permissions) to be. If the owner does not have execute permissions, this will be replaced by an uppercase S . The special permission setgid on a directory means that files created in the directory will inherit their group ownership from the directory, rather than inheriting it from the creating user. This is commonly used on group collaborative directories to automatically change a file from the default private group to the shared group, or if files in a directory should be
Post a Comment
Read more

RequestsDependencyWarning: urllib3 (1.24.1) or chardet (3.0.4) doesn't match a supported version

import tweepy /usr/lib/python2.7/dist-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.24.1) or chardet (3.0.4) doesn't match a supported version!   RequestsDependencyWarning) Traceback (most recent call last):   File "<stdin>", line 1, in <module>   File "/usr/local/lib/python2.7/dist-packages/tweepy/__init__.py", line 14, in <module>     from tweepy.api import API   File "/usr/local/lib/python2.7/dist-packages/tweepy/api.py", line 12, in <module>     from tweepy.binder import bind_api   File "/usr/local/lib/python2.7/dist-packages/tweepy/binder.py", line 11, in <module>     import requests   File "/usr/lib/python2.7/dist-packages/requests/__init__.py", line 97, in <module>     from . import utils   File "/usr/lib/python2.7/dist-packages/requests/utils.py", line 26, in <module>     from ._internal_utils import to_native_string   File "/usr/lib/python2.
Post a Comment
Read more

tag