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Douglas County

Douglas County. Disaster Recovery Strategy VMWare SRM Implementation. Topics:. Brief history of Douglas County’s HA/DR Why we Choose VMWare SRM Our Current HA/DR Strategy SRM Jumpstart/Implementation Demo Failover. Evolution of our HA/DR Strategy. Hardware Servers. DR = Tape Backups

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Douglas County

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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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