Cloud migration
- 2. WHAT IS CLOUD MIGRATION? • Cloud migration is the art of moving data, applications and other business elements from an organization’s on-premises servers to the cloud • If a business migrates to the cloud, they will be able to take advantage of the virtual pool of shared on- demand resources that are offered on the cloud • There are many different types of cloud migrations a business can perform, most common is the transition of data and applications from on premise to the cloud
- 3. BASIC CLOUD MODELS Software As A Service: A third party will allow users access to applications and licences via the internet for a monthly subscription thus eliminating the need to have it physically installed on individual computers Platform As A Service: A third party will allow users to gain access to virtual hardware and software resources , via the internet, such resources are usually those needed for application development, users gaining access to said resources will incur a monthly subscription fee Infrastructure As A Service: A third party will allow users to gain access virtualised computing resources via the internet for a monthly subscription
- 4. CLOUD COMPUTING Businesses Currently Using An On Premises Model Are Hindering Their Growth Opportunities By Outdated And Under-utilized Resources. In The Modern Business Era, Businesses Need To Rapidly Adapt To Demands Put Forward By Their Markets And Thus Cloud Offers Such Benefits, Benefits Such As: • cost reduction • security • scalability • mobility • disaster recovery
- 5. APPROACHES TO MIGRATING TO THE CLOUD THE FOLLOWING SLIDES WILL STATE AND DEFINE FOUR DIFFERENT APPROACHES TO MIGRATING TO THE CLOUD
- 6. SHALLOW CLOUD INTEGRATION • Shallow cloud integration is sometimes referred to as the “lift-and-shift” • You move the on premise application to the cloud and make no changes to the application for sole purpose of running on the cloud server. • This is known as the lift and shift because you lift the application as it is and shift it to the cloud without making changes, You don’t use cloud-unique services.
- 7. DEEP CLOUD INTEGRATION • The business will modify its application during the migration process to gain access to key cloud capabilities • It enables the business to use simple features such as auto scaling and dynamic load balancing • It also enables businesses to use advanced features such as utilizing serverless computing capabilities for portions of the application.
- 8. REFACTOR AND RE-ARCHITECT • With this approaches one can maximize the features of the cloud such as auto scaling • We can force the function of migration to take some time to re- architect the application or data so that it performs better on the cloud while keeping costs under control • It could also be a good time to evaluate the company's technology choices so that the organisation maybe able to switch from expensive commercial tech to an open source or even a cloud native
- 9. SHELVE AND SPEND • This approach refers to retiring the basic on premise application and moving to a SAAS model • This will help the business as it will enhance and boost the business logic into a more modern era • It will offload the operational burden of the service and infrastructure to the SAAS provider
- 10. 10 SUCCESSFUL CLOUD MIGRATION STEPS • Before you undertake any task, you need to prepare for it, and in cloud migration its no different. • Ensure you clearly know why you are moving to the cloud, the cloud has a vast array of benefits, ensure you know exact benefits your organisation will receive with the migration 1. Determine why you want to move to the cloud
- 11. 2. S.W.O.T ANALYSIS Actually moving to the cloud is a big undertaking While it gives an overall improvement to the organisations operations, it can be disruptive, if carried out poorly Once you have decided why it is necessary for you to migrate, you will need to perform a S.W.O.T Analysis of moving to the cloud
- 12. 3.ASSES YOUR ENVIRONMENT • Which applications should be migrated? Cloud computing maybe an amazing benefit, but it is not ideal for every business and scenario, there might be some cases where your apps or data maybe better of on your own servers rather the cloud Hence it is a good idea to identify your apps and data which can be moved to the cloud. • Assess your current infrastructure Once you have identified the apps and data to move to the cloud, the next step is to analyse them for the following: Infrastructure used by these apps. This includes the amount of storage needed and data generated Money spent on physical servers and server management Hidden costs involved A thorough analysis of the infrastructure and costs will help you identify how to migrate the apps and optimize them for better efficiency
- 13. 4.SELECTING THE RIGHT CLOUD PARTNER • Choosing the right cloud partner can be the difference between a successful cloud migration and a tragic failure • You should look for a partner who has a good reputation with the type of migration you are planning to do • Ensure that they are a certified cloud partner
- 14. 5. CHOOSE YOUR CLOUD ENVIRONMENT • Before any business even thinks about starting the cloud migration process, the business needs to decide what cloud computing environment to adopt • There are two types of cloud computing environments • Single Cloud • Multi Cloud
- 15. SINGLE CLOUD ENVIRONMENT This is accomplished when an organisation uses one single cloud provider to serve all cloud services or applications that the organisation migrates to the cloud Single cloud environments can either take advantage of public or private clouds, using which ever one better serves the organisations needs This enables the organisation to move workloads to the cloud, with the option to expand virtual servers if they breech the limit of a single cloud servers limit. Organisations who use a single cloud service generally use them for a single specific aspect such as e-mail.
- 16. MULTI-CLOUD SERVICE This is accomplished when an organisation uses multiple different cloud services, often from multiple different providers Organisations achieve a “best-of-breed” results by using multiple different cloud services, and multiple different providers By using many different service providers, organisations reduce vendor lock in Multi-cloud gives organisations peace of mind by not being overly dependent on one service provider, regularly lowering costs and increasing flexibility
- 17. CLOUD COMPUTING SERVICES • Private Cloud : private cloud is a type of cloud computing that involves clear-cut secure cloud based environment in which only specified authorized clients can access • Public Cloud: third party providers offer computing services over the public internet, making them ready for whoever wants to purchase them. They could be free or sold on-demand, allowing consumers to pay only for the CPU power, storage, or bandwidth they used • Community Cloud: several organisations within a specific community with common concerns share infrastructure • Hybrid Cloud: is a combination of on-premises, private cloud along with third-party, public cloud services with balance between the two platforms.
- 18. 6. DETERMINE THE ARCHITECTURE • Once you have selected the type of cloud you are planning on using, you will need to think about architecture • You will need to determine the architecture you will need for migration • List down the apps or data you plan to migrate • Based on the analysis done in step 3(assess your environment), determine the components you will need • Think about the storage needs, computing power, and content delivery
- 19. 7. SELECT THE RIGHT CLOUD PROVIDER Once you have identified the architecture, you will need to decide on the cloud service provider that will meet your needs You need to pick a service provider who meets your architecture needs and also stays close to the objectives you want to achieve Apart from that, you need to note other key factors while selecting the provider - like the promised SLA, prompt customer service, great feedback etc.
- 20. 8. PLAN THE MIGRATION • If you followed all the steps carefully, you should be ready for migration • The next step is to plan how the migration will take place, it is imperative that the plan takes into consideration the following: • Minimal disruption time • Order of migration of applications • Deadlines and tracking of key metrics to define a successful migration • Changes to end-user processes because of the migration and any training required • You need to always have a contingency plan for potential issues that may arise during the migration process
- 21. 9. EXECUTE THE PLAN • Always back up your data to existing servers to ensure no data lose, make sure this data is safe and easily retrievable. • Next step is setting up the cloud environment, this means provisioning, connections and testing all individual components and testing them in entirety • Migrate all existing data to the new cloud solution so that business continuity is maintained, some data need to be changed in order to be executed on the cloud, thus it will take time, it is imperative to test all connections
- 22. 10. MIGRATE APPLICATIONS AND DATA & REVIEW • If you have followed the previous steps and planned your migration properly, the actual process itself should be smooth and quick • Security should matter throughout the migration process, any temporary data store for your data should be as secure as the end destination • Cloud providers will most likely give you access to various cloud migration tools. Use them to help you with migration. • Always perform resource optimisation
- 23. RISKS OF CLOUD MIGRATION JUST AS THE YIN AND THE TANG AS THERE ARE MANY BENEFITS OF MIGRATING TO THE CLOUD, THERE ARE ALSO MANY RISKS TO IT WE WILL IDENTIFY AND DESCRIBE 8 RISKS OF MIGRATING TO THE CLOUD
- 24. INTRICATE ARCHITECTURE • The chances of the failure of cloud computing change in direction proportion to the complexity and intricacy of the architecture • Data rich applications are majority often dependent on multiple elements and environments.
- 25. MULTIPLE DEPENDENCIES • In regards to lift and shift, having multiple dependences can create problems • Lift and shift means transferring the data or application as it is, but if the said application or data has multiple dependencies while on premises and you migrate it to the cloud, you run the risk of making the data or application obsolete as it cannot run on the cloud because of its multiple dependences
- 26. DATA GRAVITY • Data Gravity is the scenario where it becomes hard to test if an application plus its data works properly on the cloud, because most replication-based migration tools require data to be moved first, and the application second, thus creating an improper sequencing problem. • This in turn makes the application obsolete and the business loses out on its own application
- 27. MANAGEMENT AND CONTROL OF THE DATA • Once data is migrated, the cloud system must track and sync new changes all the time, data is continuously being sent back and fourth • There in lies one of the biggest risks of cloud computing…security • There is a lack of control of data since it exists on repositories across the many different IT environments. • Its spread across many different serves across geographical locations, thus data control is a major issue
- 28. CLOUD GRAVITY • IT teams require workload mobility for effective data and workload migration to ensure it does not adversely affect business or introduce costs. • As such it isn't always easy to enable access to the IT teams to such mobility and workload, thus there is always a looming effective on the business as well as costs being incurred
- 29. LATENCY • Added latency when using cloud applications over the Internet is an issue that a lot of applications face.
- 30. ARCHITECTURAL DIFFERENCE Businesses always run the risk of their data and applications not working correctly on the cloud service because the organisation and the service provider have different architecture
- 31. GENERAL RISK • Data is not on premise, therefore there is always a security threat • Data is not stored on businesses servers, it is fragmented on the service providers servers, therefore lack of control of data is a risk • Data is always being sent back and fourth over the internet, meaning its always at the risk of hackers stealing the data • Always at the mercy of the service provider, if the service provider had to sut down, data would be lost