The document discusses principles for cloud migration based on the presenter's experience helping a company migrate to the cloud. It covers preparing an inventory of IT assets, network documentation, cloud provider selection considering factors like security and latency, migration approaches, key activities in the migration process like updating DNS and firewalls, and discussing costs, benefits, and payment models associated with cloud migration. The presentation aims to provide additional guidance for organizations planning a cloud infrastructure migration.

1. Cloud Migration Principle Sharing
Athikom Kanchanavibhu
Vice President, Information Technology
Shera Public Company Limited
athikom@shera.com
build better, live better
IDC Business Innovation Forum 2018 Bangkok, Wednesday, October 17, 2018

2. Cloud Migration Principle Sharing
Cloud infrastructure migration is one of the key foundations for most enterprise
embracing digital transformation. The presentation will share end-to-end cloud
migration lesson learn from preparation phase, cloud selection, and actual cutover.
It will covers elements such as cloud comparison (private, public, local vs global, XaaS),
associated matters (applications, interface, cloud connectivity, DNS/IP, license), as well
as benefits, cost, and payment model of cloud infrastructure.
It will provide additional thoughts for those who are outlining for cloud infrastructure
migration.
build better, live better

3. • Established for 44 years under
Ha Huang and SHERA brands
• Over 2,600 employees
• 3 Fibre-Cement Plants
• 2 Concrete Roof Tile Plants
• Over 3,500 distributors worldwide
• More than 30 countries, covering 7 regions
• Thailand most admired brand of
Fibre-Cement building material for
7 consecutive years 2012-2018
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4. SHERA Digital Transformation
build better, live better
Customer &
Stakeholder
Journey
Data Integration,
Big Data, AI/ML,
New Technology
Cloud
Infrastructure
Digital Business
Process & New
Business Model
Today Agenda

5. build better, live better
First thing -
Define target stage of your
Public, Private, and On-Premise
Public Cloud
SaaS
Public Cloud
PaaS
Public Cloud
IaaS
Private Cloud
IaaS
On-premise
• E-Mail
• File Sharing
• Collaboration
• Salesforce
• Digital Marketing
• Analytics
• Web Site
• Web App
• Mobile App
• Chatbot
• VM Server
(Volatile Demand)
• Cloud DB
• ERP
• VM Server
(Stable Demand)
• ITSM
• Critical Solutions
• Legacy App
• Hardware
Dependent App
• Very low latency
solution

6. build better, live better
• Inventory & Diagram
• Server
• Application
• Interface
• DNS, IP Address
• Network
• OS Version
• DB Version
• License, MA/SA
Preparation | IT Asset Inventory
The word “cloud” seems ambiguous,
but moving to cloud need to be very
accurate and precise

7. build better, live better
• Clear documentation on following information:
• Which resource is accessible from public internet or WAN
• Each resource relevant internal IP address and public IP address (if applicable)
• Each resource relevant domain name, sub-domain name
• All DNS servers (internet, external)
• All NAT configuration
• Firewall (Centralized / Decentralized)
• All firewall policies and rules that will be impacted when moving specific
resource to cloud
• For public cloud where MPLS could not be used, define which node to
establish VPN connection
• For local cloud where MPLS or physical line can be used, make sure hardware
equipment (e.g. router) has sufficient port or capacity.
• Bandwidth utilization will be shifted from existing data center to cloud, review
and estimated new bandwidth and discuss with provider for bandwidth re-
allocation
Preparation | Network & Firewall

8. build better, live better
• Example of IaaS Reduction & Conversion
• Replace with SaaS (e.g. file server, intranet)
• Scope out inactive / obsolete VM servers
Preparation | IaaS Reduction & Conversion

9. build better, live better
• Cloud provider
• Global (AWS, Azure, Google, others)
• Local (TCCT, TrueIDC, INET, others)
• Consideration
• Tier 3-4
• ISO27001, CSA STAR, etc.
• Visit actual data center
• In-house vs. Vendor
• Refresh cycle
• SaaS, PaaS, IaaS, etc.
• Internal resource / re-skill
• Latency
• Private network to cloud data center
Preparation | Cloud Provider Consideration

10. build better, live better
• Cloud provider
• Technical feasibility
• License model (e.g. BYOL, subscription)
• Old OS/DB version support
• Billing model
• Dependency of other data center
• Dependency of network landscape
• Implementation
• Resource mix (in-house vs. SI)
• Experience of similar situation
• Cutover approach limitation
Selection

11. build better, live better
• Migration Approach
• Shift & Lift
• Reinstallation
• Hybrid
• Incremental, DR-like
• Migration Media
• Physical HD
• Over-the-air
• Support data
• Time required per GB
• Wave/clustering plan
• Downtime planning
Things to consider when execute and cutover

12. build better, live better
• Downtime planning & communication
• Backup of existing servers
• Target destination resource provisioning
• Data transfer to new environment
• One-time
• Incremental
• IP and domain name update
• DNS update
• NAT update
• Firewall Policy update
• Hostname update
• IP Address in application update
• Interface checking
• Backup policy of new environment
• Servers decommissioning
• License migration & activation
• Documentation updates
Key activities

13. build better, live better
• One-time (CAPEX)
• Migration service cost (6-7 digits THB)
• Backup storage
• Extra bandwidth
• Travel & accommodation
• OT (your own staff)
• On-going (OPEX)
• IaaS and license cost
• Managed service
• Reserved instance is cheaper
• 8x5 vs. 24x7 availability
• Vendor relationship
• Re-skill of existing staff
• Payment model (for non-THB vendor)
• Credit Card (Pay-as-you-go)
• Billing service (with VAT)
• Discussion with procurement & accounting around payment to
very flexible cloud provisioning and associated cost
Cost

14. build better, live better
• If planned and executed properly, should lower
overall TCO and allow business to reinvest budget to
new technology
• Agility to try & implement new solution
• Big Data, AI, Chatbot
• Marketplace on cloud (SaaS, PaaS)
• Training is inexpensive
• Overview training
• Webinar
• Less time to manage hardware and infrastructure
• No more large CAPEX investment
• No more hardware replacement
• Simpler audit on server room / data center
• Return server room / data center space to
other purpose
Benefits

15. build better, live better

16. build better, live better
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