This document discusses how a large Asian low-cost airline migrated their web frontend to AWS public cloud to gain scalability. During quarterly sales promotions, the airline's website would go down within minutes due to a surge in traffic that exceeded their existing infrastructure capacity. By using AWS, the airline was able to automatically provision over 60 servers within 25 minutes before each promotion to handle the increased load. This improved site availability and helped convert more customers, while reducing promotion infrastructure costs by 40%. After each promotion, the extra infrastructure was turned off to avoid unnecessary costs.

1. An enterprise journey in the
Cloud
CII Conference on Cloud Computing and Business Intelligence
27 September 2012

2. Cloud Computing Definitions
Cloud computing is a style of computing in which scalable and
elastic IT-enabled capabilities are delivered as a service using
Internet technologies.
Cloud computing is a model for enabling ubiquitous, convenient,
on-demand network access to a shared pool of configurable
computing resources (e.g., networks, servers, storage, applications
and services) that can be rapidly provisioned and released with
minimal management effort or service provider interaction

3. Enterprise Systems
Customer Support / Help
CRM / ERP Systems
Desk
Collaboration Tools
Email Prod / Dev / Test
Environments

4. Cloud Service Models
Software as a Platform as a Infrastructure as a
Service Service Service
1. Consumed by end 1. Development 1. Raw Compute /
users as a service Platform to build Storage offered as
2. Subscribe for apps Service
services and start 2. Build business 2. Build Virtual
using them apps, social apps on infrastructure and
the platform manage

5. Characteristics
Self Service / On Demand
Resource Pooling
Broad Network Access
Elasticity
Measured Service

6. Benefits
Agility Elasticity
Use what you need
& when you need

7. Getting Started

8. Web Frontends Collaboration Tools
Disaster Recovery &
Backup
Dev & Test
environments
Online Marketing
Campaigns
Data center
extension

9. Case Study – largest low cost Airline in Asia
Major online presence – keeping costs low
Sales promotion every quarter
“3X” monthly traffic during promo hours (~6
hours)
Web engine goes down within few minutes of
promotion
Existing infrastructure cannot be scaled on
demand

10. Solution brief
Migrated web frontend to AWS public cloud for
scalability
Data to reside on-premise due to regulation
Secured VPN connectivity from public cloud to on-
premise data center
Integration with third party web services requiring
IP whitelisting
Custom scaling solutions to scale infrastructure

11. Cloud Architecture
1. Security
Elastic Load 2. IP WhiteListing
Balancer
3. Inter Connected
Amazon Virtual Private Cloud
4. Scalability
Amazon 5. HA
Route 53
PC
Web / App EC2 Web / App EC2
with Elastic IP with Elastic IP EC2 Instances
on AWS
VPC Subnet 1 VPC Subnet 2
Availability Zone 1 Availability Zone 2
Mobile
VPN Connection
Corporate Data center
( DC1)
3rd Party
(DC2) Services
Pad / Tab
Inventory
/Schedules
Database CRM Email

12. Aligning infrastructure to needs
Traditional Scaling
• Fixed capacity
• Under utilization of
resources
• Cost Leakage
Cloud Scaling
• Align no.of instances
with demand
• Flexible capacities and
scaling sizes
• Save costs

13. Benefits
Automated provision of 60+ servers within 25
minutes before promo start
Increased site availability by utilizing multiple data
centers
More business conversions & happy customers
~40% savings in promotion infrastructure cost
Promo infrastructure turned off after promo
period

14. Get a Partner / Expert
• Centre of Excellence for Cloud
Computing, Mobility and Big Data
• 4+ years of experience on entire suite of
AWS offerings and expertise in Public,
Private and Hybrid clouds
• Offices in United States, India &
Singapore
• Expertise in Retail (e-Commerce), Media /
Gaming, Airline, Travel and Healthcare
domains
• Awarded NASSCOM IT innovator 2009 &
amongst the NASSCOM EMERGE 50 –
Top 10 companies in India in 2010
• Clients include Tech Start-ups, Energy,
Airline, Retail, Media, Gaming &
Healthcare companies
• Very early and Strategic Partner of
Amazon Web Services

15. Q &A
Contact
Raghuraman Balachandran
Principal Architect
raghu@8kmiles.com
http://cloud.8kmiles.com