An Overview of Best Practices for Large Scale Migrations

© 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
An Overview of Best Practices for
Large-scale Migration
Wilfred Wah
Senior Consultant
AWS Professional Service HKT
16 January, 2018.
Time
Level

© 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved.© 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
Common Migration Drivers
Data Center
Consolidation
Digital
Transformation
Cost
Reduction
Acquisitions
or Divestitures
Large scale compute
intensive workloads
Facility or Real-estate
decisions
Colocation
or outsourcing contract
changes
Agility/Dev
Productivity

How do I create/consider a business case?
I am not really sure what’s in my environment, how can I create a plan?
Who can help me?What tools can I/should I use?
When do I refactor for cloud-native vs. lift-and-shift?
What’s the impact to my people? How long should it take?
How do I measure success? What happens to my operating model?
Questions About Mass Migrations

Some Customers Migrating
Consolidating 56 data centers down to 6,
moving 75% of infrastructure to cloud in
the process, and re-allocating more than
$100M toward key business drivers
Data Center
Consolidation

Transforming culture to be a great place
for developers to work by investing in
new skills (thousands of AWS
certifications and counting) and migrating
data centers to the cloudData Center
Consolidation
Digital
Transformation
Agility/Dev
Productivity

“Migrating to AWS provides the scalability,
security, and flexibility we need to stay at the
forefront of consumer DNA testing as science
and technology continues to evolve. We’ve
rapidly migrated much of our data and
applications to AWS in less than a year and
we’re excited to ramp up our innovation
engine to help more people discover their
family history.”
-Nat Natarajan, EVP of Product and Technology
Data Center
Consolidation
Agility/Dev
Productivity

Migration Process
Migration Preparation
& Business Case
Portfolio Discovery
& Planning
Migration &
Validation
Operation
Continually
Optimize

PEOPLE PROCESS TECH
FOUNDATIONAL
EXPERIENCE
EXECUTIVE
SPONSORSHIP
BUSINESS
CASE
Preparing For Mass Migration

Cloud Center of Excellence
Technical Training
Hiring People and Partners
Communication Plan
PEOPLE
Foundational Capabilities
LeadershipInfrastructure Security
Operations
Applications

Technical Training
Communication Plan
Operations Model
Provisioning
Billing Optimization
Security Operations
PEOPLE PROCESS
Design Ops
Apps
Infra
Operations
Applications

Design Ops
Apps
Infra
Patching
Monitoring
Incident
Management

Design Ops
Apps
Infra
AWS Managed
Services

Technical Training
Communication Plan
Landing Zone
Security Foundation
Operations Tools
Operations Model
Provisioning
Security Operations
PEOPLE PROCESS TECH
Direct
Connect
Accounts
Central
Services
Security Network
Identity &
Access
Domains
Start
Build & Iterate
Design Ops
Apps
Infra
AWS
Managed
Services
Operations
Applications

Your business case should be driven by your
organization’s KPIs, but here’s some common
drivers:
Business Case

Business Value Drivers
Unit price of infrastructure
Ability to match supply and demand
A pathway to optionality
An elastic cost base
Transparency drives a lean mindset
OPERATIONAL COSTS

Automation drives maintenance efficiencies
Reduced cost of planned and unplanned outages
Increased Developer Productivity
WORKFORCE PRODUCTIVITY
OPERATIONAL COSTS

Business VALUE DRIVERS
Elimination of hardware refresh programs
Elimination of maintenance programs
COST AVOIDANCE
OPERATIONAL COSTS

Reduced Risk Profile/Reduced cost of risk mitigation
Revenue & margin improvements due to reduced outages
COST AVOIDANCE
OPERATIONAL COSTS
OPERATIONAL RESILIANCE

COST AVOIDANCE
OPERATIONAL COSTS
OPERATIONAL RESILIANCE
BUSINESS AGILITY
Reduced time to market & Innovate
Increased operational agility (new market penetration,
divestiture, acquisition)

Speed Matters…
$
TCO
Migration Cost
Cost Optimising / BAU
Current / Do Nothing
AWS Environment
Payback
Period
Time
Cost

OPERATIONAL COSTSWORKFORCE PRODUCTIVITYCOST AVOIDANCEOPERATIONAL RESILIENCEBUSINESS AGILITY
98% reduction in
P1/P0s
77% faster to deliver
business applications
52% average TCO
savings
35% reduction in
compute assets (792)
15 automated bots
developed
80% cloud first adoption
15 cloud services
created
50 applications
decommissioned
8 cloud migration partiesImproved security
posture
Shift to self-service
culture
Rapid experimentation
Reduced technical debt 14M YOY Savings
Improved PerformanceStreamlined M&A Activity DevOps in Practice
$20M
Investment
Focus
18
Months
300+ Apps
Migrated
$14M YOY
Savings&

Migration Planning
Outcomes
Cost Model
Migration Patterns
Resource Model
Project Plan
Business Case
Disconnected
and Incomplete Data
Asset
Inventories
CMDB
Tribal
Knowledge
SLA/OLA
App
Configuration
Data
Performance
Information
Architecture

Migration Planning
Outcomes
Cost Model
Migration Patterns
Resource Model
Project Plan
Business Case
Disconnected
and Incomplete Data
Asset
Inventories
CMDB
Tribal
Knowledge
SLA/OLA
App
Configuration
Data
Performance
Information
Architecture
Gathering Data and Organizing
“Discovery and Planning”
Applications
Infrastructure
Performance
AWS Application
Discovery Service

Migration Planning
AWS Application
Discovery Service
Profile Discovery
Performance Discovery
Tagging and Grouping
Inventory Export
EC2 Instance Recommendations
Dependency Discovery
OS Process Discovery
Dependency Visualization
API Access

• New Application
Patterns (MSA, CI/CD)
• Dev/Test
• Production
Application Migration
• Operational Integration
• Billing Optimization
• Early Discovery
• Learning
• POCs
• TCO/ROI Analysis
• Security & Risk Preparation
• Cloud Strategy
• Foundational Architecture
The Customer Journey “Stages of
Adoption”
Stage 1
“Project”
Stage 2
“Foundation”
Stage 3
“Migration”
Stage 4
“Optimization”
Value
• Portfolio Mass Migration
• DC Shutdown
• Horizontal Solutions (VDI,
Back-up/Archive, Broad
storage)
• Advanced Operational
Patterns (CI/CD)
• Optimization
• Infrastructure
fully automated
• App/Dev owns
full solution stack
with tools and
service catalogs
Value
Time
Time

Migration Planning Outcomes
Migration Success criteria defined
Applications categorized and prioritized for migration (backlog)
A detailed migration plan
Decided the migration sprint team structure
Design for platform establishment (Landing Zone)
Tools identified for migration
Approved Business Case
Now ready to execute migrations

Redesign
Application/
Infrastructure Architecture
App Code
Development
Full ALM /
SDLC
Integration
Purchase COTS/
SaaS & licensing
Manual Install
& Setup
Modify underlying
Infrastructure
Determine
new platform
Retain /
Revisit
Manual Config
Manual Deploy
Manual Install
Retire /
Decommission
Discover/Assess/Prioritize
Applications
Determine
Migration
Path
Use Migration Tools
Transition ProductionValidation
Automate
App Migration Patterns

Portfolio Tier Characteristics Typical Cases
Typical
Migration
Path
Best-fit
Operating
Model
Approx. %
Portfolio*
Differentiate
• High rate of change
• Possibly business-critical, not always
• Innovative and/or revenue generating.
• Customer-facing web apps
• Real-time Analytics
• Mobile, IoT, Big Data
~20%
Table Stakes
• Low rate of change
• Business critical
• Highest availability/reliability required
• Systems of record
• ERP, CRM, Order/Logistics
• Legacy line-of-business
~30%
Commodity &
“Craplications”
• Low rate of change
• Non-business critical
• Standard availability/reliability required
• Productivity apps
• Non-business-critical
• Small customer-base
~50%
*by number of applications, not percent of spend
Refactor
Replatform,
Repurchase
SaaS,
Rehost,
Retire
DevOps
Steady-state
(high automation)
Steady-state
(low automation)
Typical Enterprise Portfolio
Characteristics

Spectrum Of Complexity
Re-host
Re-architect
Re-purchase
Re-platform
Level of Effort
QUICK WINS
EASY OPTIMIZATIONS
SAAS-IFY BACK OFFICE
MODERNIZE LEGACY
Time

App Migration Automation/Tools
SERVER & DB MIGRATION
ADDITIONAL 3RD PARTY
MIGRATION TOOLS
DATA TRANSFER
S3 Transfer Acceleration
AWS Storage and File Gateway
AWS Direct Connect
AWS Snowball
Amazon Kinesis Firehose
AWS Server Migration Service
AWS Database Migration Service
VMWare Cloud on AWS
PARTNERS
& Snowmobile
AWS Schema Conversion Tool

Migration Organizational Strategies
Portfolio Discovery
& Planning
Re-architectRe-host
Re-platform
Re-factor
By Line of Business
Landing Zone
Platform Integration
Operational
Integration
Migration
Project Control By Migration Strategy
Cloud Tiger Team Migration Teams
Scale as needed

Migration Process
Migration Preparation
& Business Case
Portfolio Discovery
& Planning
Migration &
Validation
Operations
Continually
Optimize

Iterating On Your Operating Model
Technical Training
Communication Plan
Landing Zone
Security Foundation
Operations Tools
Operations Model
Provisioning
Security Operations
PEOPLE PROCESS TECH
Design Ops
Apps
Infra
Direct
Connect
Accounts
Central
Services
Security Network
Identity &
Access
Domains
Start
Build & Iterate
Operations
Applications

Technical Training and Certifications
Communication Plan
PEOPLE
Cloud Business Office
Governance
Enterprise
Architecture
On-boarding Finance Marketing
Cloud Engineering
OperationsInfrastructure Security

Operations Model
Provisioning
Security Operations
Migration Process
Discovery and Planning
PROCESS
Infra
Design Ops
Dev-OpsITIL
Design Ops
Apps

Operating Model Scenario #1
Infra
Apps
-or-
OpsDesign
Steady-State B
Cloud
Engineering
Managed
Infra Ops
Dev Team /
COTS
Managed
App Ops
OpsDesign
Steady-State A
Cloud
Engineering
Managed
Hosting
Dev Team /
COTS

Operating Model Scenario #2
OpsDesign
DevOps
Cloud
Engineering
DevOps B
OpsDesign
DevOps A
DevOps
Infra
Apps
-or-

Landing Zone
Security Foundation
Operations Tools
New AWS Services
Hybrid Integrations
TECH

Common Hybrid Scenario
Data Center
Data Center
Data Center
On-premises Cloud
Amazon VPC
Amazon Direct
Connect
Application 1
Application 2
Application 3

On-premises Cloud
Application 1
Data Center
Application 2
Application 3
Application n
With Tools Supporting Both Environments
Virtual Tape Library
Amazon EC2 Simple
Systems Manager
AWS Greengrass
IAM Federation
Amazon File and Storage
Gateway
AWS CodeCommit
AWS CodeDeploy
AWS CodePipeline

Use Native AWS With Platforms You Already Know
Data Center
Cloud
Application 1
Application 2
Application 3
Application n
On-premises
on AWS

Typical Migration Engagement
• Migrate quick wins
(ex: 50 apps in 50 days)
• Operational Readiness
‒ Cloud Center of Excellence
‒ Landing Zone
‒ Operations Model
‒ Security and Compliance
• Refined business case
• Migration plan
Foundation and
Momentum Building
Readiness
Assessment
• People
• Platform
• Operations
• Security
• Business
case
Customer
Business
Goals
Migration
at Scale
• Migration execution
• Business benefit achievement
‒ Operational efficiency
‒ Resilience
‒ Business agility
‒ Workforce productivity

Well Architected Pillars
Security: The ability to protect information, systems, and assets while delivering
business value through risk assessments and mitigation strategies.
Reliability: The ability of a system to recover from infrastructure or service failures,
dynamically acquire computing resources to meet demand, and mitigate disruptions such as
misconfigurations or transient network issues.
Performance Efficiency: The ability to use computing resources efficiently to meet
system requirements, and to maintain that efficiency as demand changes and technologies
evolve.
Cost Optimization: The ability to avoid or eliminate unneeded cost or
suboptimal resources.
Operational Excellence: The ability to run and monitor systems to deliver
business value and continually improve supporting processes and procedures.

evolve.
Case Study
A Media and Entertainment Enterprise
Broadcast, Radio, News, Pay TV, VOD, eCommerce
More than 12 million customers
2 main data centers plus 5 satellite offices with server rooms
2500 servers, physical and virtualised
More than 500T storage
Aims of Cloud Migration
Cost saving
Digital Transformation
Improve business agility

Scope of Portfolio Discovery and
Analysis
Application Portfolio Analysis
• 47 production servers across 28 applications
• 116 non-production servers from two data centers
• Around 50T primary storage and 35T backup storage
• Other LOBs’ assets are excluded due to proprietary broadcast
systems. Proposal submitted for content archival and PVR
solutions
• Business case analysis for a go or no-go decision

Information Collected for the Business Case
Network Equipment Windows Servers Linux / Unix Servers
(via SNMP)
VMware
Infrastructure
Hardware Inventory – Servers/Processors/Cores, Memory, Storage, Physical Hosts for VM, Network Bandwidth
Software Information - Business Criticality, OS Name, OS Configuration, Database, Hypervisor, Guest OS
Performance Information – CPU Peak/Average, RAM Peak/Average, Max Storage IOPS, Data Transfer Peak
Operational Information – Environment Type, Tenancy, Uptime%, Manpower

TCO Assumptions and Cost-saving
Opportunities
Key Assumptions
• Uptime requirement for all production servers
are 100%
• Uptime requirement for non-production
servers are 25%
• All virtualized servers can share physical
hosts
• Peak CPU and RAM for non-prod servers are
15% and 10%, respectively
• Assume an annual growth rate of 1% for
CPU and Storage
• All storage allocated to applications are SAN
storage (HDD), with 1% backup
increment/year
• Backup storage for in-scope application is
35T out of 80T provisioned
Average fully burdened IT salary is $45,000
per annum
• The purchase option of 3-year AURI on
Compute is picked for production servers
• General discount for Compute, Storage and
SW purchase is 50%, 50% and 30%,
respectively
• There is no in-scope application having DR
site

$0
$500,000
$1,000,000
$1,500,000
$2,000,000
$2,500,000
$3,000,000
$3,500,000
On-Premises AWS
AWS Support
IT Labor
Network
Storage
Server
5-year AWS Run-rate compared to “Do-
Nothing”
US$3.02m
US$1.68m
On-Premises AWS
Server $1,500,230 $892,264
Storage $744,893 $381,911
Network $593,928 $184,159
IT Labor $183,526 $98,343
AWS Support $0 $120,083
Total $3,022,578 $1,676,761
45%
$269,163
On-Premises is more expensive by
Annual Savings by running on AWS

5-year AWS Cost Breakdown
SummarizedCashFlow Year1 Year2 Year3 Year4 Year5
Totalwith
ApplicableDiscount
Compute(Pre-Discount)
UpfrontCosts(ReservedInstances) $418,036 $0 $0 $418,036 $0
MonthlyComputeCosts $11,514 $12,804 $14,380 $16,162 $18,136
EC2&SupportTotal $429,550 $12,804 $14,380 $434,198 $18,136 $892,264
AWS-BusinessLevelSupport $24,017 $24,017 $24,017 $24,017 $24,017 $120,083
Storage $59,871 $66,738 $75,203 $84,716 $95,384 $381,911
Networking $36,832 $36,832 $36,832 $36,832 $36,832 $184,159
Labor $19,669 $19,669 $19,669 $19,669 $19,669 $98,343
AWSTotal $569,938 $160,060 $170,099 $599,431 $194,036 $1,676,761
SummarizedCashFlow Year1 Year2 Year3 Year4 Year5 Total
Server&OverheadCosts
ServerCosts $270,418 $38,797 $38,797 $38,797 $38,797 $425,605
RackInfrastructure $25,810 $11,500 $11,500 $11,500 $11,500 $71,810
FacilitiesCosts $112,014 $112,014 $112,014 $112,014 $112,014 $560,072
SoftwareCosts $88,549 $88,549 $88,549 $88,549 $88,549 $442,744
ServerTotal $496,791 $250,860 $250,860 $250,860 $250,860 $1,500,230
Storage $370,655 $84,977 $90,240 $96,170 $102,852 $744,893
Networking $153,216 $110,178 $110,178 $110,178 $110,178 $593,928
Labor $36,705 $36,705 $36,705 $36,705 $36,705 $183,526
On-PremisesTotal $1,057,367 $482,720 $487,983 $493,913 $500,594 $3,022,578
On-premises Cash
Flow
AWS Cash
Flow

MigrationPattern TotalCost Customer AWSProserve Partner
Retain $0 $0 $0 $0
Retire $0 $0 $0 $0
Repurchase $0 $0 $0 $0
Rehost $264,000 $36,000 $156,000 $72,000
Replatform $93,000 $18,000 $39,000 $36,000
Refactor/Rearchitect $0 $0 $0 $0
TotalResourceCosts $357,000 $54,000 $195,000 $108,000
CloudProjectLTCost($) $66,000
DiscoveryToolsCost($) $0
MigrationToolsCost($) $32,600
AdditionalLicensingCost($) $0
TrainingCost($) $60,000
TotalCosttoCustomer($): $515,600 **note-ifyouinputa$/hrrateforcustomerresourcesthisINCLUDEScustomerresourcecosts
ResourceCost($)
One-time Migration Cost Estimate based
on 12 Sprints 24-week effort
Resource (FTE per team / total)Resource Cost ($)
MigrationPattern SprintTeams Customer AWSProserve Partner
Retain 0 1/0 0/0 1/0
Retire 0 1/0 0/0 0/0
Repurchase 0 2/0 1/0 2/0
Rehost 1 1/1 1/1 1/1
Replatform 1 2/2 1/1 2/2
Refactor/Rearchitect 0 3/0 1/0 4/0
TotalResourcesbySource 3Customer 2AWS 3Partner
SumTotalResources 2sprintteams
Resources(FTEperteam/total)
8totalresources
MigrationCostperServer $3,163

Cost Saving Realizable Over 5 Years
0
500000
1000000
1500000
Year 0 Year-1 Year-2 Year-3 Year-4 Year-5
TCO of AWS vs Do-Nothing
Total Migration Cost Do-Nothing Cost
Year 1 Year 2 Year 3 Year 4 Year 5
Do-Nothing (On-premises) $604,516 $604,516 $604,516 $604,516 $604,516
AWS One-time Migration Cost $515,600
AWS TCO $569,938 $160,060 $170,099 $582,627 $194,036
Total AWS Costs $1,085,538 $160,060 $170,099 $582,627 $194,036
Annual Savings -$481,022 $444,456 $434,417 $21,889 $410,480
Total Savings over 5 Years $830,218
Start of Migration Break-even Point

ITOS Application Dependency Discovered
• BOE servers are out-scope but if
BSM not migrated the dependency
can be ignored
• Likewise for the IT Security server
which is also out-scope with BSM
dependency
• The out-of-scope application stack
has 3 servers connected to VTD, e-
Scheduler and BSM. Their
connection can be maintained
through VPC or DX with local data
centers
• Other out-scope servers
dependency will be maintained
through VPC or DX

Migration Clusters for Production Servers
Application Stack Name
Server
Count Migration Pattern
E-Scheduler 3 Rehost
Loyalty-Flexi 4 Replatform
VT Dashboard 3 Replatform + Rehost
Web Servers 2 Rehost
Server
eVisitor 1 Replatform + Rehost
GAW SFTP 4 Rehost
ILMU 2 Rehost
Shipment Portal 1 Rehost
Server
eFiling 2 Rehost
HPIRS Monitoring 1 Replatform + Rehost
Management Svr 1 Replatform
SPSS SW 1 Replatform
Cluster D – Independent Applications
Cluster B –Application Dependency
Cluster C – Application Dependency thru Hybrid Cloud
Cluster A –Application Dependency
Application Stack Name Server Count Migration Pattern
ARIS 2 Rehost
Contract Management System 2 Rehost
Enterprise Vault 4 Replatform + Rehost
SCOM 2 Rehost
SWAP Dashboard 1 Replatform
Live Townhall Streaming 1 Rehost
SnapComm Content Manager 1 Rehost
Bibank SFTP 1 Replatform
Ebilling SFTP 1 Rehost
After Sales SFTP 1 Rehost
FDO/LDO/Employee Feedback Tool 1 Replatform
Corporate Audit Server 1 Rehost
Cert Server 1 Rehost

One Possibility to Prioritize on Workload
Migration
1. Preserve the application dependency discovered through the tool to
minimize risk
2. Migrate workloads with less business criticality
• Generate quick wins with least disruptions
• Acquire experience prior to moving critical workloads
• Minimize migration complexity upfront
3. Migrate workloads running on Windows over other OS
4. Execute migration of re-hosting over re-platform

Total Migration Inventory and Possible
Move Groups
Move Contents Migration Pattern Application Covered
Move Group 1 50 Non-Production Servers Re-hosting Any Applications
Move Group 2 51 Non-Production Servers Re-hosting Any Applications
Move Group 3 15 Non-Production Servers
12 Servers (Rehost) from
Cluster D
Re-platforming for 15 N-Prod servers
Re-hosting for 12 Prod Servers
ARIS, Contract Mgt, SCON, Townhall
Streaming, SnapComm Manager,
eBilling SFTP, After-sale SFTP, Audit
Server, Cert Server
Move Group 4 8 servers in Cluster B
7 servers in Cluster D
Re-hosting servers for Cluster B
Re-platforming servers for Cluster D
eVisitor, GAW SFTP, ILMU, Shipment,
eVault, SWAP Dashboard, BiBank
Move Group 5 5 servers in Cluster A Re-hosting and Re-platforming eFiling, HPIRS, Management Svr, SPSS
Move Group 6 12 servers in Cluster C Re-hosting and Re-platforming E-Scheduler, Loyalty, VT Dashboard,
Web servers
Re-hosting Re-platforming
Production Servers 37 10
Non-Production Servers 101 15

High-Level Execution Plan with 2
Sprint Teams
Sprint 1* Sprint 2 Sprint 3 Sprint 4 Sprint 5 Sprint 6 Sprint 7 Sprint 8
MG-1
Execution
Planning
MG-1 Migration
Execution and Testing
Sprint 9
Sprint
10
Sprint
11
Sprint
12
MG-2
Execution
Planning
MG-2 Migration
Execution and Testing
MG-3
Execution
Planning
MG-3 Migration Execution and
Testing
MG-4
Execution
Planning
Testing
MG-5
Execution
Planning
Testing
MG-6
Execution
Planning
Testing
• Each Sprint is 2 weeks
• 2 sprint teams each with 4 resources

evolve.
Thank you!

An Overview of Best Practices for Large Scale Migrations

Recomendados

Recomendados

Mais conteúdo relacionado

Mais procurados

Mais procurados (20)

Semelhante a An Overview of Best Practices for Large Scale Migrations

Semelhante a An Overview of Best Practices for Large Scale Migrations (20)

Mais de Amazon Web Services

Mais de Amazon Web Services (20)

An Overview of Best Practices for Large Scale Migrations