migration in aws - amazon web services

Author & Cloud Expert

AryanAWS Expert

Atul Kumar

Migration in AWS

➢ 20+ Years working in IT & Certified Cloud Architect

➢ Help Customers Migrating to Cloud & Integrations

➢ Author & Speaker

➢ Helped 5000+ individuals to learn Cloud

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Atul Kumar

⮚ Working on AWS since 2013⮚ Certified AWS Architect⮚ Work for the Top Cloud Professional Services provider

in the world as AWS Solution Architect & AWS DevOps Professionals.


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Aryan: AWS Expert

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AWS Migration Module

Agenda

➢ What is Migration?➢ Advantages of Cloud Migration➢ Migration to AWS➢ What is Cloud Adoption Framework (CAF)➢ 6R Migration Pattern➢ AWS Migration Best Practices➢ What is Application Migration to AWS➢ Types of AWS Migration Services


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Agenda: Module

➢ Migration is the process of moving from one platform to another, it can be migrating web-based application,

➢ databases, virtual machines and so on.➢ Database migration is a complex, multiphase process,

which usually includes the following: ➢ Assessment of the migration task ➢ Database Schema Conversion ➢ Script Conversion ➢ Data Migration ➢ Functional Testing ➢ Performance Tuning


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What is Migration?

➢ Cloud migration is the process of moving data, applications or other business elements from an organization's on-premise computers to the cloud, or moving them from one cloud environment to another

➢ Successful migration to a cloud environment requires the use of cloud integration tools and other middleware


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Cloud Migration

➢ Scalability - Inherent scalability and flexibility, which enables planning without worrying about future IT infrastructure and allocate resources accordingly.


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Advantages of Cloud Migration -Scalability

➢ Reduced Costs - Cloud migration helps reduce both operating expense and capital expense by acquiring and paying for the resources only when required.


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Advantages of Cloud Migration –Reduced Costs

➢ Better Storage - Vast amounts of highly secure data storage at a fraction of the price to store the data on premise. Data storage capacity can also be expanded or shrunk based on the necessity.


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Advantages of Cloud Migration –Better Storage

➢ Automated Tasks - All cloud applications are updated in the backend without interference, thereby resulting in improved organization-wide stability.


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Advantages of Cloud Migration –Automated Tasks

➢ Automated Tasks - All cloud applications are updated in the backend without interference, thereby resulting in improved organization-wide stability.


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Advantages of Cloud Migration –Operational Flexibility

➢ Extensive Mobility - Important applications can be accessed on the move with full security available at all times


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Advantages of Cloud Migration –Extensive Mobility

➢ Normally the following types of resources are migrated to AWS:


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Migration to AWS


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Business Case for Migration to AWS


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➢ Cloud Adoption Framework helps the organization to understand the way a Cloud Adoption Transformation works

➢ It provides a pre-defined structure, so that an individual unit in organization can identify and address gaps and skills in the processes

➢ Applying this in organization helps them in an actionable plan with the defined streams of work that guides the organization a path to acquire for a cloud adoption

➢ It guides whether to upgrade, update or adapt new skills in order to grow an advantage for the organization


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What is Cloud Adoption Framework (CAF)

➢ In order to successfully migrate your data/applications and adopt cloud computing, the following six points must be kept in perspective:


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6 Major Points in CAF

➢ It is based upon Value Realization

➢ It helps in understanding for the stakeholders about how they should update the staff skills and organizational processes that will help in optimize the business while they are moving into cloud


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Business Perspective - Business

➢ Provides guidance to stakeholders for development of people, training and communications

➢ Updates staff skills & optimizes the organization's workforce

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Business Perspective - People

➢ Prioritize and Control ➢ Gives a guidance to stakeholders who are responsible for

supporting business processes with technology ➢ Helps stakeholders to understand the way to update staff skills

and organizational processes ➢ These processes are necessary for ensuring business governance

in the cloud, to manage and measure cloud investments for evaluation of resources used


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Business Perspective - Governance


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Technical Perspective - Platform


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Technical Perspective - Security


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Technical Perspective - Operations

➢ The journey to the cloud usually involves 4 phases: ➢ Project ➢ This is the proof of concept (POC) stage

➢ Foundation ➢ After gaining some experience with AWS by doing POC, we create the foundation for our cloud

journey ➢ Creating a landing zone (A Pre-configured, secure multi account AWS target environment)

➢ Migration ➢ In this stage the customer starts to migrate the applications, databases to AWS

➢ Reinvention ➢ This is an optimization phase where the customer can repeatedly improve their cloud resource to

get the best value from the cloud


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Customer AWS Cloud Journey


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AWS Cloud Adoption Journey

6R Migration Pattern

➢ While migrating to AWS we follow the 6R migration Pattern:


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AWS Cloud Adoption – 6R Migration Pattern

➢ Rehost ( Lift & Shift) is a strategy of Rehosting applications to AWS without making any changes to the on-premise application.

➢ One can use AWS server migration service and AWS migration hub, containerize the application and then migrate it to AWS.


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➢ Replatform (Lift, Tinker & Shift) when organization have outdated structures to move into laaS cloud platforms. Instead of changing core of the applications they are emulated through a VM so that systems become compatible with modern day cloud technologies without restructuring the systems.


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Repurchasing is the fastest way possible to access the cloud-based SaaS, it takes your company's existing data & applications and perform them clearly in a cloud-based product in order to manage operations such as HR, CRM or CMS


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Refactor/Rearchitect is a strategy used for a need to add new features or in order to increase the scalability of the application or in order to boost your business continuity and productivity, most expensive strategy usually executed after the initial migration via one of the approaches like Rehosting.


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Retain is to keep some elements in your on-premise which are not ready to migrate, focuses on Migrating what makes sense for the business.

➢ OS and Applications which are not supported ➢ Applications which do not have any

compatibility or need of migrating to cloud ➢ Applications which are outdated, upgrade

them accordingly and then migrate them to the cloud


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Retire is to identify the assets that are no longer useful and can be removed which helps in boosting your business case and giving attention towards maintaining the needful resources which can be widely used.

➢ Due to Mergers and Acquisitions (M&A) duplicate assets are present

➢ Due to clustered hosts ➢ Due to Alternative High Availability Hosts


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➢ Start small and simple: Use AWS services to get simple tasks done quick and quick, the more your staff becomes comfortable with AWS services, and the faster your stakeholders see the benefits, the easier it is to convince them of the benefits of AWS

➢ Automate: Automate extensively to realize the speed of cloud computing, spend time revisiting processes and establishing new ones that can be automated as you migrate

➢ Adaptive: Adjust your internal processes so that the stakeholders can embrace this technological change and align themselves with this new paradigm


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AWS Migration Best Practices

⮚ Leverage fully managed services wherever possible ⮚ Let AWS handle the day-to-day maintenance activities and free up your team to focus on

customers ⮚ You can Monitor everything comprehensively and have data-driven insights into how the

environment performance and use them to make business decisions when considering trade-offs between performance and costs

⮚ Use cloud-native monitoring tools New Relic, APPDYNAMICS, AWS CloudWatch Logs etc., that provide application-level insights and monitoring on AWS

⮚ Leverage AWS enterprise support like the AWS Technical Account Managers (TAMs) and billing concierges, which can provide a central point of contact and escalation path with AWS, as well as an invaluable source of technical information and guidance


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AWS Migration Best Practices

⮚ It is the process of moving an application from an

on-premises enterprise server to AWS

environment, to experience benefits like Elasticity,

Disaster Recovery, Enhanced Cost Management

and many more .


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What is Application Migration To AWS ?


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Application Migration Phase 1


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Types Of AWS Migration Services

⮚ Application Discovery Service Collects configuration, usage and behavioral data from

on-premise servers and helps to plan the migration to AWS cloud


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Application Discovery Service


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Application Discovery Service -Benefits

➢ AWS Discovery ConnectorTo collect performance information and system specification for all VMS in one vCenter, deploy an AWS Agentless Discovery Connector in each VMware vCenter

➢ AWS Discovery AgentTo collect system specification, performance, processes and network dependencies, install an AWS Application Discovery Service Agent on each VM


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Application Discovery Tools

Agentless Server Discovery ➢ Agentless Discovery Connector is

deployed on VMware vCenter ➢ Connector identifies VM's and host

associated with it ➢ Collects static configuration and

computes average and peak utilization- CPU, RAM, Disk utilization

Agent Based Server Discovery ➢ Agent is deployed on on-premise

server ➢ Agent collects information like static

config data, system performance, running processes and many more

➢ Collected data can be used to analyze and identify the network connection


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Types Of Application Discovery

➢ It helps to track the progress of the application by providing a single location dashboard. It allows you to choose the AWS and partner migration tools and provides key matrices and progress for each application


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AWS Migration Hub


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AWS Migration Hub Dashboard


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AWS Migration Hub Dashboard

➢ Automates an incremental replication of live Provide end-to-end server

➢ Provide end-to-end server migration process for on-premise VMS

➢ Supports all widely used operating systems

➢ It is cost effective ➢ Provides UI to track the progress of

the server


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Server Migration Services

Step 1: Scheduling ➢ Schedule Migration job

Step 2: Uploading ➢ Take a Snapshot ➢ Export VM to OVF template ➢ Upload VMDK to S3 Bucket ➢ Clean the Snapshot

Step 3: Converting ➢ Convert VMDK file to an Amazon EBS Snapshot➢ Delete the VMDK file in the S3 Bucket

Step 4: Creating AMI ➢ Create an AMI


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Server Migration Services – How Does It Work?

➢ Helps in quick and secure migration of database➢ Migrate data to and from commercial and open-source databases➢ Supports homogenous(For e.g. Oracle to Oracle) as well as heterogenous(For e.g. Oracle to

Amazon Aurora) migration ➢ Allows you to stream data to Amazon Redshift, Amazon DynamoDB and Amazon S3 ➢ Used for continuous data replication with high-availability


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AWS Database Migration


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AWS Database Migration - Features

Following are the challenges that occurs during Database Migration:

➢ Identifying and prioritizing Database(DB) Migration

➢ Migration of large database in Tera Bytes(TBs) & Peta Bytes(PB’s)

➢ Live Migration with Zero Data Loss

➢ Schema Migration

➢ Secured database Migration


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AWS Database Migration Challenges

➢ One should have a good understanding about the source

database

➢ Planning time and resources would be involved in the

Migration

➢ Better understanding of the Network

➢ Better understanding of the Exact Requirements

➢ Use Schema Conversion Tool to check if Heterogeneous

Database Migrations are possible


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Overcoming AWS Database Migration Challenges

➢ A web service used to migrate data from on-premise databases, DB instance or database running on an Amazon Elastic Compute Cloud (Amazon EC2) instance

➢ Use the AWS Schema Conversion Tool (AWS SCT) to translate your database schema to the new platform and then use AWS DMS to migrate the data

➢ AWS DMS and AWS Snowball Edge Integration enables mass Database Migrations and Migration of Large Databases

➢ AWS Migration Hub helps to keep track of the progress of DB Migrations and provides key metrics


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AWS Database Migration Services (DMS)

➢ Starts the first migration in 10 minutes or less ➢ Keeps the apps running during the migration➢ Replicates within, to or from Amazon EC2 or RDS➢ Moves database to the same or different database engine


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Type Of Database Migrated Using AWS Services


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How Is AWS DMS Different?


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AWS Schema Conversion Tool (SCT)


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AWS Schema Conversion Tool (SCT)


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DB Conversions Supported By SCT


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AWS SCT Project Window


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AWS Schema Conversion Tool (Oracle To Aurora)


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Sample SCT Assessment Report


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How DMS Works?

DB Migration – From Source To Target


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DB Migration Type - Homogenous

Source and Destination have same DB engines( For Example: MySQL to MySQL)


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Source and Destination have different DB engines( For Example: MySQL to Aurora DB)


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DB Migration Type – Heterogenous

It is the process of moving data from onsite computer to AWS


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What Is Data Migration To AWS


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Data Migration Services

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migration in aws - amazon web services

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