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Disaster Recovery &
                                                       Private Cloud
                                                        Our Real-World Example

                                                                   Yan Ness
                                                                CEO, Online Tech




                 Colocation                          Dedicated Servers                Private Clouds

Copyright © 2011 Online Tech. All rights reserved                www.onlinetech.com                    734.213.2020
Our Private Cloud

          • 23 Physical Servers                                               • OT Private Cloud
                    • 18 Windows, 5 CentOS                                           – 2 Hardware Servers (N+1)
                                                                                        • 2xQuad Core CPUs, 48GB RAM
                      servers
                                                                                     – 8TB SAN (SATA – RAID 10, 3TB usable)
                    • 4 database servers                                             – HA Configuration
                    • Each ~10% utilized                                                • Automatic Load Balancing Across Hosts
                                                                                        • Automatic Failover to Single Server
                                                                                     – Continuous Offsite Backup
                                                                                     – Warm Site D/R in Ann Arbor
                                                                                        • 4 Hour Recovery Time – Fully Tested




                 Colocation                         Dedicated Servers                   Private Clouds
                                                                                                          2
Copyright © 2011 Online Tech. All rights reserved               www.onlinetech.com                                  734.213.2020
Our World
         Everything is Mission Critical




                            VS              VS            VS



                                                                      SAN




                     VS                VS

                                                    Restore




                 Colocation                               Dedicated Servers                Private Clouds
                                                                                                            3
Copyright © 2011 Online Tech. All rights reserved                     www.onlinetech.com                        734.213.2020
Lessons
         Fast, Effective but Manage or Die

         • 22 Servers restore and restart very quickly
                   • 45 minutes
         • Exchange
                   • 3.5 hours
         • Total Storage
                   • 1.5 TB of server run files and data
         • Network
                   • Maintain dual-network at production and DR site
                   • DNS for failover
         • Backup
                   • Assure success daily or even hourly
                   • Database backups can require special care



                 Colocation                         Dedicated Servers                Private Clouds

Copyright © 2011 Online Tech. All rights reserved               www.onlinetech.com                    734.213.2020

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Disaster Recovery in the Cloud -- A Failover Testing Case Study

  • 1. Disaster Recovery & Private Cloud Our Real-World Example Yan Ness CEO, Online Tech Colocation Dedicated Servers Private Clouds Copyright © 2011 Online Tech. All rights reserved www.onlinetech.com 734.213.2020
  • 2. Our Private Cloud • 23 Physical Servers • OT Private Cloud • 18 Windows, 5 CentOS – 2 Hardware Servers (N+1) • 2xQuad Core CPUs, 48GB RAM servers – 8TB SAN (SATA – RAID 10, 3TB usable) • 4 database servers – HA Configuration • Each ~10% utilized • Automatic Load Balancing Across Hosts • Automatic Failover to Single Server – Continuous Offsite Backup – Warm Site D/R in Ann Arbor • 4 Hour Recovery Time – Fully Tested Colocation Dedicated Servers Private Clouds 2 Copyright © 2011 Online Tech. All rights reserved www.onlinetech.com 734.213.2020
  • 3. Our World Everything is Mission Critical VS VS VS SAN VS VS Restore Colocation Dedicated Servers Private Clouds 3 Copyright © 2011 Online Tech. All rights reserved www.onlinetech.com 734.213.2020
  • 4. Lessons Fast, Effective but Manage or Die • 22 Servers restore and restart very quickly • 45 minutes • Exchange • 3.5 hours • Total Storage • 1.5 TB of server run files and data • Network • Maintain dual-network at production and DR site • DNS for failover • Backup • Assure success daily or even hourly • Database backups can require special care Colocation Dedicated Servers Private Clouds Copyright © 2011 Online Tech. All rights reserved www.onlinetech.com 734.213.2020