© 2013 EUCALYPTUS SYSTEMS, INC.
SHEDDING LIGHT
ON THE CLOUD:
DEFINING CLOUDS
AND BEST
PRACTICES
Paul Weiss
Technical Marke...
InfoQ.com: News & Community Site
• 750,000 unique visitors/month
• Published in 4 languages (English, Chinese, Japanese an...
Presented at QCon New York
www.qconnewyork.com
Purpose of QCon
- to empower software development by facilitating the sprea...
© 2013 EUCALYPTUS SYSTEMS, INC.
AGENDA
• Why Cloud?
• Define Cloud
• Cloud Models
• Old vs New
• Benefits of Cloud
• How t...
© 2013 EUCALYPTUS SYSTEMS, INC.3
© 2013 EUCALYPTUS SYSTEMS, INC.
WHY CLOUD?
4
© 2013 EUCALYPTUS SYSTEMS, INC.
Be prepared to support 3x the workload in 7 years
THE CONNECTED LIFE BY 2020
5
© 2013 EUCALYPTUS SYSTEMS, INC.
WHAT’S DRIVING CLOUD ADOPTION
6
Source: 2012 Future of Cloud Survey
Scalability is the #1 ...
© 2013 EUCALYPTUS SYSTEMS, INC.
TOMORROW’S CLOUD FORECAST
7
Hybrid is the only way to scale to 3x in 7 years
Source: 2012 ...
© 2013 EUCALYPTUS SYSTEMS, INC.
WHAT IS A CLOUD?
8
© 2013 EUCALYPTUS SYSTEMS, INC.
CLOUD COMPUTING DEFINITION
• Industry surveys indicate that the desire to move to cloud
co...
© 2013 EUCALYPTUS SYSTEMS, INC.
NIST CLOUD DEFINITION
10
© 2013 EUCALYPTUS SYSTEMS, INC.
5 ESSENTIAL CLOUD CHARACTERISTICS
11
© 2013 EUCALYPTUS SYSTEMS, INC.
CLOUD DEPLOYMENT MODELS
Private Cloud Community Cloud Public Cloud
The cloud infrastructur...
© 2013 EUCALYPTUS SYSTEMS, INC.
TRADITIONAL IT DEPLOYMENT MODEL
(OLD)
13
• In a traditional model,
the user must work
thro...
© 2013 EUCALYPTUS SYSTEMS, INC.
CLOUD COMPUTING DEPLOYMENT MODEL
(NEW)
14
• In a cloud computing model the
user can self-p...
© 2013 EUCALYPTUS SYSTEMS, INC.
DIFFERENCES BETWEEN VIRTUALIZATION
AND CLOUD COMPUTING
15
Traditional Virtualization Cloud...
© 2013 EUCALYPTUS SYSTEMS, INC.
SOME BENEFITS OF CLOUD COMPUTING
• Application scalability
• Agility
• Cost control
• Time...
© 2013 EUCALYPTUS SYSTEMS, INC.17
THE ROADMAP THROUGH PRIVATE
CLOUD
After virtualization, private cloud is the next step
© 2013 EUCALYPTUS SYSTEMS, INC.
IAAS USE CASES - GETTING STARTED
•Transient apps: dev & test environments
•Bursty workload...
© 2013 EUCALYPTUS SYSTEMS, INC.
TO CLOUD OR NOT? – THINK ABOUT
•Dev / Test – on ramp to public cloud
•Security
•Intellectu...
© 2013 EUCALYPTUS SYSTEMS, INC.20
© 2013 EUCALYPTUS SYSTEMS, INC.
IMAGES / INSTANCES
21
© 2013 EUCALYPTUS SYSTEMS, INC.
WHAT’S IN AN IMAGE?
• Not running
• Operating System
• Current Patches*
• Application*
Not...
© 2013 EUCALYPTUS SYSTEMS, INC.
WHAT’S IN AN INSTANCE?
• Running copy of an image
• Configured size (VM Type)
– CPU
– Memo...
© 2013 EUCALYPTUS SYSTEMS, INC.
IMAGES
Machine Size
• CPU(s)
• Mem
• Disk
• Network
Operation System Initial
Configuration...
© 2013 EUCALYPTUS SYSTEMS, INC.
INSTANCE FLOW
25
VM Size OS Install
Initial
Config
App
Install
Patch
Install
Final
Config
...
© 2013 EUCALYPTUS SYSTEMS, INC.
HOW TO START AN INSTANCE
• Start basic instance
–$euca-run-instances emi-12345 –k mykey
• ...
© 2013 EUCALYPTUS SYSTEMS, INC.
CLOUD-INIT
$ cat cloud-config.txt
#cloud-config
# upgrade the instance on first boot
packa...
© 2013 EUCALYPTUS SYSTEMS, INC.
APPLICATION GROUPS
Apache + HAProxy Apache + HAProxy
App Server 1 App Server 2 App Server ...
© 2013 EUCALYPTUS SYSTEMS, INC.
WEB-TIER GROUP #1
• VM Type: Large
– 2 CPU
– 8 GB RAM
– 160 GB Disk
• Update OS
• Install ...
© 2013 EUCALYPTUS SYSTEMS, INC.
APP-TIER GROUP #1
• VM Type: X-Large
– 4 CPU
– 16 GB RAM
– 160 GB Disk
• Update OS
• Insta...
© 2013 EUCALYPTUS SYSTEMS, INC.
MONITOR EACH TIER
• Understand load placed on tier
• Knows how to scale up when demand inc...
© 2013 EUCALYPTUS SYSTEMS, INC.
APPLICATIONS
32
© 2013 EUCALYPTUS SYSTEMS, INC.
APPLICATION DEPENDENCY MAPPING
33
Has risk assessment and dependancy mapping been
done on ...
© 2013 EUCALYPTUS SYSTEMS, INC.
LESS COMPLEX
34
Keep it simple for first time success!
© 2013 EUCALYPTUS SYSTEMS, INC.
EXAMPLES OF TIGHT / LOOSE COUPLING
•Example of tight coupling:
Controller A Controller B C...
© 2013 EUCALYPTUS SYSTEMS, INC.
EXAMPLE OF SCALABILITY DESIGN
Apache + HAProxy Apache + HAProxy
App Server 1 App Server 2 ...
© 2013 EUCALYPTUS SYSTEMS, INC.
DESIGN FOR SCALABILITY
• A scalable application architecture is critical to take advantage...
© 2013 EUCALYPTUS SYSTEMS, INC.
DESIGN FOR FAILURE
• "Everything fails, all the time“
- Werner Vogels, CTO Amazon.com
• Av...
© 2013 EUCALYPTUS SYSTEMS, INC.
HYBRID CLOUD
39
© 2013 EUCALYPTUS SYSTEMS, INC.
STAGE-MOVE-MANAGE CLOUD
EBS
S3
EC2
IAMEMI
S3EC2 EBS
IAM
AMI
• Multi-vendor Virtualization
...
© 2013 EUCALYPTUS SYSTEMS, INC.
HYBRID CLOUD API COMPATIBILITY
41
Test on-premise cloud compatibility with proven
applicat...
© 2013 EUCALYPTUS SYSTEMS, INC.
AWS & EUCALYPTUS COMPATIBILITY
42
How compatible is the hybrid solution?
© 2013 EUCALYPTUS SYSTEMS, INC.
HYBRID EXAMPLE
43
© 2013 EUCALYPTUS SYSTEMS, INC.
Mirroring / Replication
Scaled down
Standby
Data
Volume
Application
Server
Reverse
Proxy /...
© 2013 EUCALYPTUS SYSTEMS, INC.
WWW1.EUCALYPTUS-LABS.COM (EUCA)
45
© 2013 EUCALYPTUS SYSTEMS, INC.
Mirroring / Replication
Data
Volume
Application
Server
Reverse
Proxy /
Caching
Server
AWS ...
© 2013 EUCALYPTUS SYSTEMS, INC.
WWW2.EUCALYPTUS-LABS.COM (AWS)
47
© 2013 EUCALYPTUS SYSTEMS, INC.
REVIEW AND BEST PRACTICES
48
© 2013 EUCALYPTUS SYSTEMS, INC.49
THE ROADMAP THROUGH PRIVATE CLOUD
Can you support 3x? Planning is critical!
© 2013 EUCALYPTUS SYSTEMS, INC.
CLOUD BEST PRACTICES (REQUIREMENTS)
• Risk assessment on all mission critical applications...
© 2013 EUCALYPTUS SYSTEMS, INC.
CLOUD BEST PRACTICES (GETTING STARTED)
• Review NIST Special Publication 800-146
• Review ...
THANK YOU
Paul Weiss
paul.weiss@eucalyptus.com
@Paul_Weiss
52
Watch the video with slide synchronization on
InfoQ.com!
http://www.infoq.com/presentations/cloud-
compare
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Shedding Light on the Cloud: Defining Clouds and Best Practices

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Paul Weiss provides a step-by-step overview and comparison of on-premise, public, and hybrid clouds, explaining how to select the right cloud model. Filmed at qconnewyork.com.

Paul Weiss is the Technical Marketing Manager at Eucalyptus Systems working with Enterprise customers across the globe. He worked at VMware for over 3 years and has worked with virtualization products for many years. He has also worked as a VMware Specialist at a Premier VMware Partner, a Senior Systems Architect with a primary focus on large Sun environments, and as a Sun Certified Instructor.

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Shedding Light on the Cloud: Defining Clouds and Best Practices

  1. 1. © 2013 EUCALYPTUS SYSTEMS, INC. SHEDDING LIGHT ON THE CLOUD: DEFINING CLOUDS AND BEST PRACTICES Paul Weiss Technical Marketing Manager
  2. 2. InfoQ.com: News & Community Site • 750,000 unique visitors/month • Published in 4 languages (English, Chinese, Japanese and Brazilian Portuguese) • Post content from our QCon conferences • News 15-20 / week • Articles 3-4 / week • Presentations (videos) 12-15 / week • Interviews 2-3 / week • Books 1 / month Watch the video with slide synchronization on InfoQ.com! http://www.infoq.com/presentations /cloud-compare
  3. 3. Presented at QCon New York www.qconnewyork.com Purpose of QCon - to empower software development by facilitating the spread of knowledge and innovation Strategy - practitioner-driven conference designed for YOU: influencers of change and innovation in your teams - speakers and topics driving the evolution and innovation - connecting and catalyzing the influencers and innovators Highlights - attended by more than 12,000 delegates since 2007 - held in 9 cities worldwide
  4. 4. © 2013 EUCALYPTUS SYSTEMS, INC. AGENDA • Why Cloud? • Define Cloud • Cloud Models • Old vs New • Benefits of Cloud • How to Select the Right Cloud Model(s) • How to Select the Applications to Move into the Cloud • How to Successfully Migrate Applications into the Cloud • Best Practices (Getting Started) 2
  5. 5. © 2013 EUCALYPTUS SYSTEMS, INC.3
  6. 6. © 2013 EUCALYPTUS SYSTEMS, INC. WHY CLOUD? 4
  7. 7. © 2013 EUCALYPTUS SYSTEMS, INC. Be prepared to support 3x the workload in 7 years THE CONNECTED LIFE BY 2020 5
  8. 8. © 2013 EUCALYPTUS SYSTEMS, INC. WHAT’S DRIVING CLOUD ADOPTION 6 Source: 2012 Future of Cloud Survey Scalability is the #1 reason for cloud. Remember 3x in 7 years
  9. 9. © 2013 EUCALYPTUS SYSTEMS, INC. TOMORROW’S CLOUD FORECAST 7 Hybrid is the only way to scale to 3x in 7 years Source: 2012 Future of Cloud Survey
  10. 10. © 2013 EUCALYPTUS SYSTEMS, INC. WHAT IS A CLOUD? 8
  11. 11. © 2013 EUCALYPTUS SYSTEMS, INC. CLOUD COMPUTING DEFINITION • Industry surveys indicate that the desire to move to cloud computing is widespread. So what is cloud computing? • National Institute of Standards and Technology (NIST) definition: “. . . a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources . . . that can be rapidly provisioned and released with minimal management effort or service provider interaction.” 9
  12. 12. © 2013 EUCALYPTUS SYSTEMS, INC. NIST CLOUD DEFINITION 10
  13. 13. © 2013 EUCALYPTUS SYSTEMS, INC. 5 ESSENTIAL CLOUD CHARACTERISTICS 11
  14. 14. © 2013 EUCALYPTUS SYSTEMS, INC. CLOUD DEPLOYMENT MODELS Private Cloud Community Cloud Public Cloud The cloud infrastructure is operated entirely for an organization. The cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns. The cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services. • Secure • Predictable Performance • Existing resources • Path to hybrid cloud • Control • Cost control • Designed w/ a purpose • Scale • Cost savings (if managed) • Cost savings (if managed) • Scale • Regions to span • Many services Eucalyptus, Apache Cloud Stack, OpenStack AWS GovCloud AWS, GCE, Windows Azure, RackSpace ~~~~ Hybrid Cloud ~~~~ 12
  15. 15. © 2013 EUCALYPTUS SYSTEMS, INC. TRADITIONAL IT DEPLOYMENT MODEL (OLD) 13 • In a traditional model, the user must work through the IT department to provision a server. • This is a multi-stage process that has inherent delays. • Can take days, weeks, or even months User requests server Server provisioned Wait Negotiate resource configuration Negotiate business caseApproved? IT available? no no yes yes Old methods will not scale to the 3x we need to support
  16. 16. © 2013 EUCALYPTUS SYSTEMS, INC. CLOUD COMPUTING DEPLOYMENT MODEL (NEW) 14 • In a cloud computing model the user can self-provision servers that fall within predefined IT resource policies. • This model eliminates many of the inherent delays in the traditional deployment model. • Deployment time reduced to minutes User requests server Server provisioned IT defines resource policies Within policies? yes no Cloud computing deployment model will help us scale to support the 3x demand
  17. 17. © 2013 EUCALYPTUS SYSTEMS, INC. DIFFERENCES BETWEEN VIRTUALIZATION AND CLOUD COMPUTING 15 Traditional Virtualization Cloud Computing VM Location on a specific host on any host in availability zone VM Storage persistent ephemeral (except for volumes) VM Resources (CPU, memory) customizable standard sizes (Small, Medium, Large, etc.) VM Resource Change Method resize existing VM launch new VM Time to Provision Minutes/Hours/Days Minutes VM Failure Recovery Method attempt to recover failed VM discard and start new VM Virtualization alone is not cloud!
  18. 18. © 2013 EUCALYPTUS SYSTEMS, INC. SOME BENEFITS OF CLOUD COMPUTING • Application scalability • Agility • Cost control • Time to Market • Security • Better utilization of resources • Disaster Recovery • Remove IT silos 16 #1 – Scalability #2 – Agility #3 – Cost
  19. 19. © 2013 EUCALYPTUS SYSTEMS, INC.17 THE ROADMAP THROUGH PRIVATE CLOUD After virtualization, private cloud is the next step
  20. 20. © 2013 EUCALYPTUS SYSTEMS, INC. IAAS USE CASES - GETTING STARTED •Transient apps: dev & test environments •Bursty workloads: web and mobile applications •Big data: analytics and computations •Gaming applications and: hybrid clouds, rich media encoding/decoding, complex and large-scale data processing, training & e-learning, storage-as-a-service, remote desktop hosting, public cloud, carrier-grade cloud 18 Dev / Test is a great place to start
  21. 21. © 2013 EUCALYPTUS SYSTEMS, INC. TO CLOUD OR NOT? – THINK ABOUT •Dev / Test – on ramp to public cloud •Security •Intellectual Property (IP) •Manufacturing •Some Enterprise Applications 19 Every application needs to be carefully evaluated – to cloud or not!
  22. 22. © 2013 EUCALYPTUS SYSTEMS, INC.20
  23. 23. © 2013 EUCALYPTUS SYSTEMS, INC. IMAGES / INSTANCES 21
  24. 24. © 2013 EUCALYPTUS SYSTEMS, INC. WHAT’S IN AN IMAGE? • Not running • Operating System • Current Patches* • Application* Note: An image is stored in the cloud, not running 22 An image is a stored snap-shot or disk copy of a system, ready to be launched
  25. 25. © 2013 EUCALYPTUS SYSTEMS, INC. WHAT’S IN AN INSTANCE? • Running copy of an image • Configured size (VM Type) – CPU – Memory – Disk – Network / Security • Operating System • Current Patches • User(s) – keys by default, LDAP, AD • Additional storage if needed • Application(s) • Connections to other systems – LB’s, DB’s, etc. 23 An instance is a running virtual machine, based on an image, ready to use
  26. 26. © 2013 EUCALYPTUS SYSTEMS, INC. IMAGES Machine Size • CPU(s) • Mem • Disk • Network Operation System Initial Configuration (network, access, mounts, etc) Patches Application Application Configuration Basic Virtual Machine Manually Configure Choose ISO, Manually install Manual configuration Manually install Manually install Manual configuration Advanced Virtual Machine Boot pre-configured VM template Manual configuration Manual update Installed with template Manual configuration Basic Cloud Instance Choose VM-Type Choose Image Cloud configured Manually install Manually install Manually configured Semi- Automated Cloud Choose VM-Type Choose Image Cloud configured Configuration Management Agent managed Fully Automated Cloud Using monitoring, load-balancing, auto-scaling – cloud automatically provisions / de-provisions as needed to maintain work-load. 24 Think about supporting 3x the workload
  27. 27. © 2013 EUCALYPTUS SYSTEMS, INC. INSTANCE FLOW 25 VM Size OS Install Initial Config App Install Patch Install Final Config How many of these steps do you want to do manually?
  28. 28. © 2013 EUCALYPTUS SYSTEMS, INC. HOW TO START AN INSTANCE • Start basic instance –$euca-run-instances emi-12345 –k mykey • Advanced instance start –$ euca-run-instances emi-12345 –k mykey –g my_security_group –t Vmtype –f cloud-config.txt 26
  29. 29. © 2013 EUCALYPTUS SYSTEMS, INC. CLOUD-INIT $ cat cloud-config.txt #cloud-config # upgrade the instance on first boot package_upgrade: true # setup mount points mounts: - [ sdc, /opt/data ] # install additional packages at first boot packages: - your favorite configuration management system agent 27
  30. 30. © 2013 EUCALYPTUS SYSTEMS, INC. APPLICATION GROUPS Apache + HAProxy Apache + HAProxy App Server 1 App Server 2 App Server 3 App Server n Master DB Slave DBEBS Vol. EBS Vol. Walrus Your Site Daily Snapshots Rolling Snapshots Replication 172.168.2.54 172.168.9.87 Web-Tier Group #1 App-Tier #1 28
  31. 31. © 2013 EUCALYPTUS SYSTEMS, INC. WEB-TIER GROUP #1 • VM Type: Large – 2 CPU – 8 GB RAM – 160 GB Disk • Update OS • Install Apache + HA Proxy • Connect to App-Tier Message Queue • Add IP to load balancer • Report success to monitoring tool when above is done 29
  32. 32. © 2013 EUCALYPTUS SYSTEMS, INC. APP-TIER GROUP #1 • VM Type: X-Large – 4 CPU – 16 GB RAM – 160 GB Disk • Update OS • Install Application Server • Connect to App-Tier Message Queue • Connect to Database Message Queue • Report success to monitoring tool when above is done 30
  33. 33. © 2013 EUCALYPTUS SYSTEMS, INC. MONITOR EACH TIER • Understand load placed on tier • Knows how to scale up when demand increases –Max instances • Knows how to scale down when demand decreases –Min instances 31 Group applications, monitor and scale up or down as needed to meet demand and contain cost.
  34. 34. © 2013 EUCALYPTUS SYSTEMS, INC. APPLICATIONS 32
  35. 35. © 2013 EUCALYPTUS SYSTEMS, INC. APPLICATION DEPENDENCY MAPPING 33 Has risk assessment and dependancy mapping been done on every mission critical application?
  36. 36. © 2013 EUCALYPTUS SYSTEMS, INC. LESS COMPLEX 34 Keep it simple for first time success!
  37. 37. © 2013 EUCALYPTUS SYSTEMS, INC. EXAMPLES OF TIGHT / LOOSE COUPLING •Example of tight coupling: Controller A Controller B Controller C Controller A Controller B Controller C Controller A Controller B Controller C Controller A Controller B Controller C Q1 Q1Q1 • Example of loose coupling using queues: Design for scalability 35
  38. 38. © 2013 EUCALYPTUS SYSTEMS, INC. EXAMPLE OF SCALABILITY DESIGN Apache + HAProxy Apache + HAProxy App Server 1 App Server 2 App Server 3 App Server n Master DB Slave DBEBS Vol. EBS Vol. Walrus Your Site Daily Snapshots Rolling Snapshots Replication 172.168.2.54 172.168.9.87
  39. 39. © 2013 EUCALYPTUS SYSTEMS, INC. DESIGN FOR SCALABILITY • A scalable application architecture is critical to take advantage of a scalable infrastructure • Load balancing and proxying • Caching – Don’t generate the same content twice • No central point of data storage contention – Shared Nothing / Sharding / Distributed Caching • Loose coupling of processing requestors and responders
  40. 40. © 2013 EUCALYPTUS SYSTEMS, INC. DESIGN FOR FAILURE • "Everything fails, all the time“ - Werner Vogels, CTO Amazon.com • Avoid single points of failure • Assume everything fails, and design backwards • Design for failure and your app won’t fail
  41. 41. © 2013 EUCALYPTUS SYSTEMS, INC. HYBRID CLOUD 39
  42. 42. © 2013 EUCALYPTUS SYSTEMS, INC. STAGE-MOVE-MANAGE CLOUD EBS S3 EC2 IAMEMI S3EC2 EBS IAM AMI • Multi-vendor Virtualization • Multi-vendor Storage • Data center Networking • Infrastructure Meshed Applications • Layer over multi-vendor complexity • Separate application logic from infrastructure • Store data with cloud compute accessibility • Create LDAP/AD to IAM bridge • Seamless access to on- demand capacity • On-demand pricing • Better application availability • Better data resiliency Cloud Management Framework
  43. 43. © 2013 EUCALYPTUS SYSTEMS, INC. HYBRID CLOUD API COMPATIBILITY 41 Test on-premise cloud compatibility with proven applications
  44. 44. © 2013 EUCALYPTUS SYSTEMS, INC. AWS & EUCALYPTUS COMPATIBILITY 42 How compatible is the hybrid solution?
  45. 45. © 2013 EUCALYPTUS SYSTEMS, INC. HYBRID EXAMPLE 43
  46. 46. © 2013 EUCALYPTUS SYSTEMS, INC. Mirroring / Replication Scaled down Standby Data Volume Application Server Reverse Proxy / Caching Server AWS Region Slave Database Server Data Volume Application Server Reverse Proxy / Caching Server Eucalyptus On-Premise IaaS Master Database Server PILOT LIGHT Not Running Pilot Light System www1.eucalyptus-labs.com
  47. 47. © 2013 EUCALYPTUS SYSTEMS, INC. WWW1.EUCALYPTUS-LABS.COM (EUCA) 45
  48. 48. © 2013 EUCALYPTUS SYSTEMS, INC. Mirroring / Replication Data Volume Application Server Reverse Proxy / Caching Server AWS Region Slave Database Server Data Volume Application Server Reverse Proxy / Caching Server Eucalyptus On-Premise IaaS Master Database Server PILOT LIGHT - RECOVERY Start in minutes Add additional capacity as needed www2.eucalyptus-labs.com X
  49. 49. © 2013 EUCALYPTUS SYSTEMS, INC. WWW2.EUCALYPTUS-LABS.COM (AWS) 47
  50. 50. © 2013 EUCALYPTUS SYSTEMS, INC. REVIEW AND BEST PRACTICES 48
  51. 51. © 2013 EUCALYPTUS SYSTEMS, INC.49 THE ROADMAP THROUGH PRIVATE CLOUD Can you support 3x? Planning is critical!
  52. 52. © 2013 EUCALYPTUS SYSTEMS, INC. CLOUD BEST PRACTICES (REQUIREMENTS) • Risk assessment on all mission critical applications • Dependency mapping on all mission critical applications • Gather application issues • Application requirements (OS, platform) • Machine requirements (CPU, Memory) • Network requirements • Storage requirements (space and IOPS) • Benchmark virtual machine / application • Document application monitoring 50
  53. 53. © 2013 EUCALYPTUS SYSTEMS, INC. CLOUD BEST PRACTICES (GETTING STARTED) • Review NIST Special Publication 800-146 • Review Gartner Cloud Roadmap • Decide what cloud model(s) you will start with • Get executive sponsorship • Agree what success looks like • Create a project plan • Train staff • Choose an application that makes sense • Benchmark application in the cloud (compare) – Performance, Availability & Scalability • Monitor 51
  54. 54. THANK YOU Paul Weiss paul.weiss@eucalyptus.com @Paul_Weiss 52
  55. 55. Watch the video with slide synchronization on InfoQ.com! http://www.infoq.com/presentations/cloud- compare

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