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Journey Through The Cloud - Disaster Recovery

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This webinar based on this presenation discusses the use of the AWS Cloud as a disaster recovery (DR) environment. It will explore how the architectural approaches to DR in the AWS Cloud makes DR and BCP a great scenario for familiarising yourself with AWS before moving on to production application deployments in the cloud.

Watch a recording of the webinar based on this presentation on YouTube here: https://youtu.be/YFuOTcOI8Bw

Published in: Technology
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Journey Through The Cloud - Disaster Recovery

  1. 1. Journey Through the Cloud ianmas@amazon.com @IanMmmm Ian Massingham — Technical Evangelist Disaster Recovery
  2. 2. Journey Through the Cloud Learn from the journeys taken by other AWS customers Discover best practices that you can use to bootstrap your projects Common use cases and adoption models for the AWS Cloud 1 2 3
  3. 3. Disaster Recovery Explore and learn about AWS with a ‘non-production’ use case
 Phase systems into ‘live’ DR use with reduced risk
 Benefit from lower costs & only pay for what you use
 Gain the ability to test DR procedures more frequently
 Invoke DR whilst testing DR procedures if necessary
  4. 4. Agenda Why AWS for disaster recovery?
 AWS services that are relevant for DR use-cases
 Common DR architectures
 Customer case studies and examples
 Resources to learn more
  5. 5. Using AWS for DR Provision https://aws.amazon.com/solutions/case-studies/sunpower/
  6. 6. Business & Technical Drivers for DR in the Cloud ▶︎ Minimise costs ▶︎ Reduce on-premises infrastructure ▶︎ Consolidate sites ▶︎ Remove ageing technonologies
  7. 7. DR & Business Continuity DR forms part of a wider set of policies & controls High availability Backup Disaster recovery Keep your applications running 24x7 Make sure your data is safe Get your applications and data back after a major disaster
  8. 8. I T ’ S N O T B I N A R Y
  9. 9. DR & Business Continuity Recovery Time Objective (RTO) Recovery Point Objective (RPO) How quickly I need this service to be recovered 1 minute? 15 minutes? 1 hour? 4 hours? 1 day? How much data loss can be tolerated? Zero data loss? 15 minutes out of date? Each application or service will have specific requirements
  10. 10. DR & Business Continuity Customerfacing transactionalwebapplication Internalcollaborationsystem Dailyscheduledprocesses &systems Backendreportingsystem & database Applications can be placed on a spectrum of complexity… Rebuild when required from offsite backup Run hot-hot configuration with auto-failover
  11. 11. The Utility, On-Demand Data Centre Primary Site Routers Firewalls Network Application Licenses Operating Systems Hypervisor Servers SAN fabric Primary Storage Backup Archive Secondary Site Routers Firewalls Network Application Licenses Operating Systems Hypervisor Servers SAN fabric Primary Storage Backup Archive
  12. 12. The Utility, On-Demand Data Centre Primary Site Routers Firewalls Network Application Licenses Operating Systems Hypervisor Servers SAN fabric Primary Storage Backup Archive AWS Region Routers Firewalls Network Application Licenses Operating Systems Hypervisor Servers SAN fabric Snapshot Storage Backup Archive
  13. 13. The Utility, On-Demand Data Centre Primary Site Routers Firewalls Network Application Licenses Operating Systems Hypervisor Servers SAN fabric Primary Storage Backup Archive AWS Region Routers Firewalls Network Application Licenses Operating Systems Hypervisor Servers SAN fabric Snapshot Storage Backup Archive Secondary site costs
  14. 14. 11 regions 28 availability zones 51 edge locations AWS Global Footprint https://aws.amazon.com/about-aws/global-infrastructure/
  15. 15. AWS security approach Size of AWS
 security team Visibility into
 usage & resources Increasing your Security Posture in the Cloud https://aws.amazon.com/security
  16. 16. Broad Accreditations & Certifications https://aws.amazon.com/compliance
  17. 17. Partner ecosystem Customer ecosystem Everyone benefits Security Benefits from Community Network Effect
  18. 18. RELEVANT AWS SERVICES
  19. 19. Object Storage & Transfer Services Amazon S3 AWS Import/Export AWS Storage Gateway
  20. 20. AWS Import/Export Disk AWS Import/Export Disk https://aws.amazon.com/importexport/disk/details/ Accelerates moving large amounts of data Uses portable storage devices for transport Often faster than internet transfer for large data sets Supported regions: US East (N. Virginia), US West (Oregon), US West (Northern California), EU (Ireland), and Asia Pacific (Singapore)
  21. 21. AWS Import/Export Snowball https://aws.amazon.com/importexport/ A single Snowball appliance can transport up to 50 terabytes of data
  22. 22. Using AWS Storage Services for DR Amazon S3 & Amazon Elastic Block Store Simple Storage Service Highly scalable object storage 1 byte to 5TB in size 99.999999999% durability Elastic Block Store High performance block storage device Volumes from 1GB to 16TB in size Snapshot/cloning functionalities
  23. 23. Networking & Connectivity Services AWS Direct Connect Amazon Virtual Private Cloud (VPC) Amazon Route 53
  24. 24. Connecting to AWS VPN Connectio VPN Connection Amazon VPCYour premises/network AWS Resources VPC VPN Gateway VPN Connection Customer Gateway Your Resources http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpn-connections.html
  25. 25. Connecting to AWS Direct Connect Amazon VPCYour premises/network AWS Resources Direct Connect Your Resources https://aws.amazon.com/directconnect/
  26. 26. Foundation Services Amazon EC2 Amazon Relational Database Service (RDS) Amazon Elastic Block Storage (EBS)
  27. 27. COMMON ARCHITECTURES
 FOR DISASTER RECOVERY
  28. 28. Common Architectures for Disaster Recovery 4 Main Patterns Backup & Restore Pilot light Warm standby in AWS Multi-site solution AWS & on-premises
  29. 29. Common Architectures for Disaster Recovery We’ll focus on two, starting with Backup & Restore Backup & Restore Pilot light Warm standby in AWS Multi-site solution AWS & on-premises
  30. 30. Store backup data in the AWS Cloud
  31. 31. Store AMIs for server operating system images
  32. 32. Recover servers during DR testing or invocation
  33. 33. Backup & Restore Pattern Advantages from starting here… Simple to get started Easy starting point for exploring the AWS cloud Low technical barrier to entry Focus on incorporating cloud into your DR strategy, not on complex technical issues related to hot-hot systems Cost effective Very high levels of data durability at low price Cost of storing snapshots in S3 Archiving possibilities beyond tape using Glacier
  34. 34. Backup & Restore Pattern Getting started… Take backups of configuration state & data Store Backups in Amazon S3 Move to long term archive in Glacier
  35. 35. Backup & Restore Pattern Options… Gateway Backup Appliance Direct Access to Amazon S3 AWS Storage Gateway
  36. 36. Amazon S3 Standard Standard - Infrequent Access Glacier https://aws.amazon.com/s3/
  37. 37. Amazon S3 Standard - Infrequent Access https://aws.amazon.com/s3/storage-classes/
  38. 38. Amazon Glacier https://aws.amazon.com/glacier/
  39. 39. Amazon Glacier Durable Designed for 99.999999999% durability of archives Cost Effective Write-once, read-never. Cost effective for long term storage. Pay for accessing data https://aws.amazon.com/glacier/
  40. 40. Logs accessible from S3 logs Expiry time
  41. 41. logs ✗ Objects expire and are deleted Logs accessible from S3 Expiry time
  42. 42. Txns Object transition to Glacier invoked Logs logs ✗ Objects expire and are deleted accessible from S3 accessible from S3 ExpiryTransition time
  43. 43. Restoration of object requested for x hrs Logs logs ✗ Objects expire and are deleted accessible from S3 accessible from S3 Txns ExpiryTransition Object transition to Glacier invoked time
  44. 44. time 3-5hrs Object held in S3 RRS for x hrs ExpiryTransition Logs logs ✗ Objects expire and are deleted accessible from S3 accessible from S3 Txns Object transition to Glacier invoked Restoration of object requested for x hrs
  45. 45. Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway AWS Storage Gateway installed on-premise to synchronize local volumes https://aws.amazon.com/storagegateway/
  46. 46. Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway Local volumes created under Storage Gateway
  47. 47. Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway Usable with on- premise servers via iSCSI interface
  48. 48. Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway Primary on- premise volumes snapshotted, compressed and stored in Amazon S3
  49. 49. ✕ Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway ✕
  50. 50. Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway Snapshot pulled from S3 to restore local volume
  51. 51. Storage Gateway Corporate Data Center Elastic Data Center AWS Storage Gateway Snapshot pulled from S3 to create cloud instance backed by Volume
  52. 52. Gateway stored volumes Data stored locally Asynchronous backup EBS snapshots iSCSI local interface Up to 16TB volumes Up to 12 volumes Gateway cached volumes Data stored in S3 Recently read data cached Low latency iSCSI local interface Up to 32TB volumes Up to 32 volumes
  53. 53. AWS Storage Gateway Gateway-Virtual Tape Library (VTL) http://docs.aws.amazon.com/storagegateway/latest/userguide/Requirements.html#requirements-backup-sw-for-vtl
  54. 54. Storage appliances & backup management
  55. 55. RDS & Oracle RMAN https://d0.awsstatic.com/whitepapers/strategies-for-migrating-oracle-database-to-aws.pdf
  56. 56. Common Architectures for Disaster Recovery Next, let’s take a look at the Pilot Light pattern Backup & Restore Pilot light Warm standby in AWS Multi-site solution AWS & on-premises
  57. 57. Pilot light architecture Build resources around replicated dataset Keep ‘pilot light’ on by replicating core databases Build AWS resources around dataset and leave in stopped state
  58. 58. Pilot light architecture Build resources around replicated dataset Scale AWS resources in response to a DR event Keep ‘pilot light’ on by replicating core databases Build AWS resources around dataset and leave in stopped state Start up pool of resources in AWS when events dictate Match required production capacity through auto-scaling policies
  59. 59. Pilot light architecture Build resources around replicated dataset Scale AWS resources in response to a DR event Keep ‘pilot light’ on by replicating core databases Build AWS resources around dataset and leave in stopped state Start up pool of resources in AWS when events dictate Match required production capacity through auto-scaling policies Cut over to the system in AWS
  60. 60. Stopped instances Pilot Light
  61. 61. Running instances Pilot Light
  62. 62. RESOURCES YOU CAN USE TO LEARN MORE
  63. 63. aws.amazon.com/disaster-recovery/
  64. 64. AWS Disaster Recovery White Paper Amazon Web Services – Using AWS for Disaster Recovery October2014 Page 1 of 22 Using Amazon Web Services for Disaster Recovery October 2014 Glen Robinson, Attila Narin, and Chris Elleman Amazon Web Services – Using AWS for Disaster Recovery October2014 Page 2 of 22 Contents Introduction...............................................................................................................................................................3 Recovery Time Objective and Recovery Point Objective ................................................................................................4 Traditional DR Investment Practices ............................................................................................................................4 AWS Services and Features Essential for Disaster Recovery...........................................................................................5 Example Disaster Recovery Scenarioswith AWS...........................................................................................................9 Backup and Restore ................................................................................................................................................9 Pilot Light for Quick Recovery into AWS .................................................................................................................11 Warm Standby Solution in AWS.............................................................................................................................14 Multi-Site Solution Deployed on AWS and On-Site..................................................................................................16 AWS Production to an AWS DR Solution Using Multiple AWS Regions......................................................................18 Replication of Data...................................................................................................................................................18 Failing Back from a Disaster.......................................................................................................................................19 Improving Your DR Plan ............................................................................................................................................20 Software Licensing and DR........................................................................................................................................21 Conclusion ...............................................................................................................................................................21 Further Reading........................................................................................................................................................22 Document Revisions.................................................................................................................................................22 Amazon Web Services – Using AWS for Disaster Recovery October2014 Page 14 of 22 Warm Standby Solutionin AWS The term warmstandby isusedtodescribe aDR scenario inwhicha scaled-downversionof afullyfunctional environmentisalwaysrunninginthe cloud. A warmstandbysolutionextendsthe pilotlightelementsandpreparation.It furtherdecreasesthe recoverytime because some servicesare alwaysrunning.Byidentifyingyourbusiness-critical systems,you canfullyduplicate thesesystemsonAWSandhave themalwayson. These serverscanbe runningon a minimum-sizedfleetof AmazonEC2instancesonthe smallestsizespossible.This solutionisnotscaledtotake a full-productionload,butitisfullyfunctional.It canbe usedfornon-productionwork, such as testing,qualityassurance,andinternal use. In a disaster,the systemisscaledupquicklytohandle the productionload.InAWS,thiscanbe done by addingmore instancestothe loadbalancerand by resizingthe small capacityserverstorunonlargerAmazonEC2 instance types.As statedinthe precedingsection,horizontal scalingispreferredoververtical scaling. Preparation phase The followingfigure showsthe preparationphase forawarm standbysolution,inwhichanon-site solution andanAWS solutionrunside-by-side. Figure 6: ThePreparation Phaseofthe Warm Standby Scenario. Amazon Web Services – Using AWS for Disaster Recovery October2014 Page 16 of 22 Multi-Site Solution Deployedon AWS and On-Site A multi-site solutionrunsinAWSaswell ason your existingon-site infrastructure,inanactive-active configuration.The data replicationmethodthatyouemploywill be determinedbythe recovery pointthatyouchoose. Formore information aboutrecoverypointoptions,seethe RecoveryTime Objective andRecoveryPointObjectivesectioninthis whitepaper. In additiontorecoverypointoptions,thereare variousreplicationmethods, suchassynchronousandasynchronous methods. Formore information,seethe Replicationof Datasectioninthiswhitepaper. You can use a DNSservice thatsupportsweightedrouting,suchas AmazonRoute 53, to route productiontrafficto differentsites thatdeliverthe same applicationorservice.A proportionof trafficwill gotoyour infrastructure inAWS, and the remainderwill gotoyouron-site infrastructure. In an on-site disastersituation,youcanadjustthe DNSweightingandsendall traffictothe AWS servers.The capacityof the AWS service canbe rapidlyincreasedtohandle the full productionload. Youcanuse AmazonEC2 AutoScalingto automate thisprocess.Youmightneedsome applicationlogictodetectthe failure of the primarydatabase servicesand cut overto the parallel database servicesrunninginAWS. The cost of thisscenarioisdeterminedbyhowmuchproductiontrafficishandledbyAWSduring normal operation.In the recoveryphase,youpay only for whatyouuse forthe durationthat the DR environmentisrequiredatfull scale.You can furtherreduce costby purchasing AmazonEC2 ReservedInstancesforyour“alwayson”AWSservers. Preparation phase The followingfigure showshow youcanuse the weightedroutingpolicy of the AmazonRoute 53 DNS to route a portion of yourtrafficto the AWS site.The applicationonAWSmightaccessdata sourcesinthe on-site productionsystem.Data isreplicatedormirroredto the AWSinfrastructure. Figure 8: ThePreparation PhaseoftheMulti-SiteScenario. http://media.amazonwebservices.com/AWS_Disaster_Recovery.pdf
  65. 65. aws.amazon.com/vpc aws.amazon.com/directconnect aws.amazon.com/s3 aws.amazon.com/glacier aws.amazon.com/storagegateway
  66. 66. AWS re:Invent 2015 | (STG304) Deploying a Disaster Recovery Site on AWS https://www.youtube.com/watch?v=bXrGUlgbl-s&list=PLhr1KZpdzukdTMmq1gkXs7g6WIIXtL5r9&index=15
  67. 67. aws.amazon.com/architecture/
  68. 68. Certification aws.amazon.com/certification Self-Paced Labs aws.amazon.com/training/
 self-paced-labs Try products, gain new skills, and get hands-on practice working with AWS technologies aws.amazon.com/training Training Validate your proven skills and expertise with the AWS platform Build technical expertise to design and operate scalable, efficient applications on AWS AWS Training & Certification
  69. 69. Follow us for m ore events & w ebinars @AWScloud for Global AWS News & Announcements @AWS_UKI for local AWS events & news @IanMmmm Ian Massingham — Technical Evangelist

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