Six Steps To Migrate To Cloud

By Maryna Cherednychenko

More and more companies use cloud services every year. The reasons are apparent: they allow you to store and process large amounts of data without huge infrastructure costs. Besides, you can access the data from any place and not worry about its safety. This article will explain what cloud migration is, how to perform it, and what tools to use.

What Is Cloud Migration?

Why Move To Cloud?

  • raise the speed of IT service delivery
  • reduce total cost of ownership
  • help react faster to market changes
  • undertake IT functions that don’t create competitive differentiation
  • increase competitive power

Learn more at the picture below:

Reasons for cloud migration

Cloud Migration Types

Full migration. Here, the entire IT infrastructure is transferred to the cloud provider: data, apps, settings. The company employees access all the services through thin clients. This type is more suitable for small companies because they do not have many resources and a complete move can be carried out in a few days.

Partial migration. It is a hybrid model when part of the resources are moved to the cloud, and the rest remain on-premises. Owners opt for such a migration to check cloud abilities and try new ways to work with data. Other reasons may lie in security and legacy matters related to the company’s activity.

Partial migration is also known as the gradual transfer of IT elements to a virtual platform. This model is suitable for companies with many resources and remote offices. For seamless migration, they need a detailed roadmap to move data without stopping the system.

Full and partial migration

Cloud Models

Public cloud means a hosting provider rents cloud services to multiple customers while computing, networking, and storage resources are located in one large data center. The public cloud serves well for automating routine tasks and is the number one choice for website and online services owners.

Pros

  • Zero capital costs
  • Low IT overheads
  • Great scalability

Cons

  • Lower security
  • Some limits of customization
  • Possible latency

Private cloud allows building a private infrastructure in a separate space. It means a given business acts as a single cloud owner, and no one else can store the data there. Typical users of private clouds are large companies with a vast IT infrastructure and those who work with confidential data.

Pros

  • Advanced customization
  • Strong security
  • Internet and private network connections

Cons

  • High costs
  • Poor outside support
  • Limited scalability

Hybrid cloud is a mix of the previous two. It distributes the data between public and private environments and is suitable for those who face sudden bursts of activity, i.e., during sales or ad campaigns. This model also works for firms that run complex technological solutions or develop new software products.

Pros

  • Super flexibility
  • High scalability
  • Better data security

Cons

  • Complex implementation
  • Compatibility issues
Three cloud types

Six Steps To Implement Cloud Migration

Step 1. Define Migration Scope

  • rehost
  • replatform
  • refactor
  • retire
  • repurchase
  • retain

The Time quadrant, in its turn, helps define one or more strategies for certain software components. Let’s see how it works.

  1. The Tolerate section is suitable for apps that are impractical to migrate to the cloud. The reasons can be different: economic, technical, security, etc. The best strategy for such apps is to leave them in local facilities.
  2. The Invest section covers innovative solutions that give a promising outlook for the business. Rearchitecting and replatforming are the best strategic moves for such apps.
  3. The Migrate section usually covers essential and stable apps generating a steady income. You could use the rehosting approach as a part of your cloud migration strategy.
  4. The Eliminate section implies repurchasing or retiring apps that bring low to zero value to the business.
Define migration scope

Step 2. Set Criteria For Successful Migration

  • Average response time — how quickly the server returns the result under normal operating conditions.
  • Maximum response time — the most extended time of server response under nonstandard conditions.
  • Total uptimethe percentage ratio of the stable app work in relation to the entire work time of the system.
  • Error ratio — the percentage of requests returned with errors to the total number of requests.
  • Error types — the detected errors, warnings, and exceptions sorted by categories.
  • Network delay — time between the client request and server response.
  • Indicator of compromise — the part of potentially malicious data found in system log entries or files.
  • Network input and output — network capacity usage across involved devices.

Step 3. Pick Up Cloud Provider

Physical security of data centers:

  • reliable means to protect the territory and data center perimeter
  • audio and video control of internal premises and outside area
  • strict documentation of all actions and events
  • fail-safe power supply
  • reliable backup lines

Legal security of cloud infrastructure. Make sure the seizure of equipment or data is only possible by court order.

Infrastructure security:

  • data protection in the cloud
  • client isolation in public cloud
  • traffic and storage encryption
  • cloud cluster fault-tolerance

Tech support:

  • competence
  • friendliness
  • availability
  • speed

Free trial

Step 4. Use Automation Tools

You can also use third-party services to automate cloud migration. Here are the most popular ones:

The tech stack for the migration depends on many factors. An expert team with solid expertise in cloud services will help you make the right choice. After examining your product, they will advise you on the best tools to carry out the transfer within the shortest time.

Steps of cloud migration

Step 5. Run Trial Migration

  1. Try to move the individual parts with the least load.
  2. While in the cloud, measure all the performance metrics (you can see them above in step 2). If you find delays and gaps, work to eliminate them.
  3. When you’re happy with your current state in the cloud, get ready for a full-scale migration.

Step 6. Migrate To Cloud

For a seamless migration, consider hiring a dedicated team. Choose experts who often deal with cloud apps and know how to migrate a project to a virtual platform. If you don’t know where to start, drop us a line. Our managers will provide you with a detailed migration plan so that you decide how to proceed.

This article was originally published at Softensy.

Softensy specializes in fintech development and enterprise-level apps. Our team helps companies automate business processes by developing software solutions.

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