saas, paas or iaas- where will the enterprise sit in the cloud
DESCRIPTION
Businesses today demand that their IT functions deliver certainty, confidence and agility, whilst achieving ever-improving efficiency and reduced Total Cost of Ownership, but how will Cloud Computing change the Enterprise IT landscape?TRANSCRIPT
SaaS, PaaS or IaaSWhere will the Enterprise
sit in the Cloud?
Simon Hansford
VP, Service Strategy
Subscription application-as-a-service Software-plus-services
Accountability Private Cloud control
Architecture Platform as a service Cloud Storage
SLA SaaS G-Cloud
Infrastructure as a Service Virtual Private Clouds
Green Computing Cloud Grid Computing
Public Cloud loosely coupled Utilities IT
Infrastructure Utility services resiliency
compliance agility Performance
Security virtualization
Analyst definition of Cloud Computing
IDC, Defining “Cloud Services” and
“Cloud Computing”, Cloud Computing
Blog, September
An emerging IT
development, deploymen
t and delivery
model, enabling real-time
delivery of
products, services and
solutions over the
Internet.
IDC
A pool of abstracted,
highly scalable, and
managed compute
infrastructure capable of
hosting end-customer
applications and billed by
consumption.
Forrester, Is Cloud Computing Read for
the Enterprise?,
March 2008
Forrester
A style of computing
where massively scalable
IT-enabled capabilities
are delivered ‘as a
service’ to external
customers using Internet
technologies.
Gartner, Cloud Computing: Defining
and Describing an Emerging
Phenomenon, June 2008
Gartner
5 Essential Cloud Characteristics
On-demand self-service
Broad network access
Resource pooling
Location independence
Rapid elasticity
Measured service
Cloud computing often
leverages:
Scale
Virtualization
Resilient computing
Geographic distribution
Service orientation
Advanced security
technologies
5
On-demand self-service
3 Cloud Service Models
Software as a Service
Cloud Applications Cloud Platforms
Use of an application
over a network
SaaS
Platform as a Service
Deploy customer-
created applications to a
cloud
PaaS
Infrastructure as a Service
Rent
processing, storage and
network capacity
IaaS
3 Cloud Service Models
SaaS PaaS IaaS
VMs on Shared
Infrastructure
Shared App execution
environment
Shared App execution
environment
Fast provisioning &
granular billing
Fast provisioning &
granular billingDynamic sizing and
billing
Specificity General UseTargeted App
Complexity HighConstrained
Pay for application Pay for resource Pay for usage
4 Cloud Deployment Models
Private cloud
enterprise owned or provided by outsourcer
Community cloud
shared infrastructure for specific community
Public cloud
sold to the public, mega-scale infrastructure
Hybrid cloud
composition of two or more clouds“Green”
Cloud
“G-Cloud”
“High Security”
Cloud
“Demo”
Cloud
“Retail” Cloud“NHS” Cloud
The NIST Cloud Definition Framework
Deployment
Models
Service
Models
Essential
Characteristics
Software as a
Service (SaaS)
Platform as a
Service (PaaS)
Infrastructure as a
Service (IaaS)
Resource Pooling
Broad Network Access Rapid Elasticity
Measured Service
On Demand Service
Private
Cloud
Community
Cloud
Public
Cloud
Hybrid Clouds
Courtesy of Microsoft
Works how the business wishes to work
Native Client Experience
Works the WayYou Do
Easy Adaptability
Works the Way Your Business
Does
Available, Secure & Agile
Works the WayTechnology
Should
Courtesy of Microsoft
Cloud
Where applications will resideB
uy
Bu
ild
On premise Cloud
Hosted
Application
Packaged
Application
Software as a
Service
Custom
Application
Hosted
Application
Cloud Platform
ERP
Collaboration
Web site
HR
Core AppCore App
Hosted
Core App
Core App
Cloud Services will …
Increase Your Business Agility
Scale up and down your IT resources (processor, memory, storage
and bandwidth) as your business dictates
Align your existing resources with change in application priorities
Increase Your Service Quality
Increase availability through a resilient design and latest technology
that might otherwise be unaffordable
Future Proof Your IT Infrastructure
Benefit from a seamless upgrade path to latest technology
Reduce Your Capital Costs
Reduce the need to design to maximum capacity
Or own the CAPEX
Environmentally friendly, less resources, less energy
When is Cloud a good fit for the Enterprise?
Average
Usage
Co
mp
ute
Time
Usage
Co
mp
ute
Time
Average
Inactivity
Period
Co
mp
ute
Time
Average
Usage
Co
mp
ute
Time
Average
Usage
Or issues exist with;
• Availability
• Disaster Recovery
• DC space
• Capex
• People Skills
Leading IaaS Cloud Services Platform
Attenda RTI elastic
compute capacity on
demand
1. Comprises Compute Units
of Attenda RTI resource
The smallest compute unit
available is 2GHz processor
and 3GB memory
2. Comprises of dedicated
Virtual Machines
A Virtual Server Farm is
made up of multiples of these
compute units, shared by a
number of virtual machines
i.e. n x (2GHz processor, 3GB
memory) / n x VM’s
Physical Server
Physical Server
Core
Router
Core
Router
Core
Switch
Core
Switch
Private
Cloud
Public
Cloud
SAN
Switch
SAN
Switch
The industrialised Enterprise IaaS Cloud
Physical Server
Physical Server
Core
Router
Core
Router
Core
Switch
Core
Switch
SAN
Switch
SAN
Switch
Physical Server
Physical Server
Core
Router
Core
Router
Core
Switch
Core
Switch
SAN
Switch
SAN
Switch
Physical Server
Physical Server
Core
Switch
Issues & Challenges exist
1
7
Solves some of the burden of IT
Reduces IT capex spend
Tackle server underutilisation
Curtail overbuying
Business Seasonality
Scalable resources on demand
Deliver flexible IT
infrastructure
Serve range of needs from test /
dev to highly available applications
Maximise IT staff resources
Minimise complexity of IT
infrastructure
Address environmental issues
Application management
Application monitoring
Skills in IT Service Operations
Incident, Problem, Change
Release Management
Patch Management
etc, etc
Significant part of the cost and
complexity remains
Your focus incorrectly remains
on IT Operations rather than
IT Strategy
Recommendations
Today
Review your current portfolio of IT applications, infrastructure &
services and map against the 3 Cloud Service Models.
Complete a Cloud readiness Survey.
The next 6 Months
Begin re-education. The culture of "build and manage
everything" has changed completely.
Redefine your IT portfolio in terms of service components (what
it does), instead of what it is built from and how you currently
deliver it.
Are you ready for the Cloud?
Visit stand 842
or
www.attenda.net/cloudsurvey.asp