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Douglas County Disaster Recovery Strategy with VMWare SRM Implementation

Explore the evolution of Douglas County's HA/DR strategy, the shift to VMWare SRM, and the benefits of implementing a new HA/DR infrastructure. Discover the pros and cons of using VMWare clusters and storage replication, and how SRM automation enhances disaster recovery efforts. Learn about the streamlined architecture, lower costs, and improved predictability of the new strategy.

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Douglas County Disaster Recovery Strategy with VMWare SRM Implementation

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  1. Douglas County Disaster Recovery Strategy VMWare SRM Implementation

  2. Topics: • Brief history of Douglas County’s HA/DR • Why we Choose VMWare SRM • Our Current HA/DR Strategy • SRM Jumpstart/Implementation • Demo Failover

  3. Evolution of our HA/DR Strategy

  4. Hardware Servers • DR = Tape Backups • Offsite Tape Storage • Required Sourcing New Hardware and Rebuilding from Tape • Long Rebuild Times • Hope the Tapes & Backups were Good • No HA

  5. Hardware & VMWare Clusters-Stretched Clusters • Two Datacenters • Two Storage Arrays • Stretched VLANS Across Datacenters • DR: Mostly Recovery From Tape

  6. VCS Clusters:Hardware for Tier 1 Apps DataCenter 2 DataCenter 1

  7. VCS Clusters – Site Failure DataCenter 2 DataCenter 1

  8. Pros and Cons • Pros: • Provided High Availability • Provided Disaster Recovery • Cons: • Very Complex to Setup/Maintain • False “Down Systems” (Network – loss of hearbeat, etc…) • Kept Clusters Frozen • High Cost of Cluster Software

  9. VMWare: VMotionBetween Datacenters DataCenter 2 DataCenter 1

  10. VMWare – Site Failure DataCenter 2 DataCenter 1

  11. Pros and Cons • Pros: • Provided High Availability • Provided Disaster Avoidance Only • Built-In Feature of VMWare – Low Cost • Cons: • No DR • Still Reliant on Tape for System Restoration

  12. The End of Stretched Clusters!

  13. What We Are Doing Today • Two Datacenters – Two Storage Arrays • Arrays Replicate Tier 1 Data between Datacenters • HA & DR: Separate Strategies • Highly Virtualized Environment

  14. Storage Replication Between Data Centers DataCenter 2 VMWare HA VMWare HA

  15. Storage Replication Between Data Centers DataCenter 2 VMWare HA VMWare HA

  16. Pros: • Disaster Recovery • High Availability • Simplified Architecture • Lower Cost – Leverage Investment in VMWare – No other Cluster Software Needed

  17. Cons: • Very Manual Process to Recover Systems • Depends on High Level Admin Involvement • Not Fully Leveraging Capabilities of VMWare

  18. Why SRM? • Almost 100% Virtualized • New Datacenter: Better DR Site • Disaster Recovery: • Automated (Recovery Plan Execution) • Predictable • Quicker Recovery • Easily Testable • Leverage Technology Investments

  19. New HA/DR Infrastructure

  20. VMWare Jumpstart • Good Experience – Would Recommend • Way to Focus Team on Complex Issues • Jumpstart Activities Done in LAB Environment • Only Issue: Certificates

  21. Custom Certificates! • 7 vCenter Certificates • InventoryService, SSO, vCenter, WebClient, LogBrowser, UpdateManager, Orchestrator • 1 SRM Server Certificate • At Each Site

  22. Certificate Documentation • Generating certificates for use with the VMware SSL Certificate Automation Tool • KB (2044696) • Requirements when using trusted certificates with VMware Site Recovery Manager 1.0.x/4.0.x/4.1.x/5.x • KB (1008390)

  23. Recovery Plan Demo

  24. Thank You!

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