windows disaster recovery dr with replication using double take availability
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Windows Disaster Recovery (DR) with Replication using Double-Take Availability

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Windows Disaster Recovery (DR) with Replication using Double-Take Availability. Solution Overview. Protecting data is important, but cost and complexity prevent small companies & departments from doing it

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Presentation Transcript
solution overview
Solution Overview
  • Protecting data is important, but cost and complexity prevent small companies & departments from doing it
  • Backup is very important, but it alone cannot provide for a rapid failover or recovery from a disaster
    • Replication provides superior RTOs & RPOs.
  • Host-based DR for Windows servers can be both easy and affordable, also applicable to virtual servers
  • Double-Take is recognized as the market leader in host based replication and recovery for 16+ years
disaster recovery for smbs
Disaster Recovery for SMBs

When do SMBs start to consider DR and Replication?

  • When application recovery in the event of a disaster must happen quickly, <1hr vs. several hours
    • Does not replace backup, augments data protection
  • RTO & RPO – Time and Point objectives for recovery
    • Synchronous vs. Asynchronous – Depends on Latency
  • When should shared storage be considered as part of a DR project?
comparing approaches to replication for dr
Comparing approaches to Replication for DR
  • Smaller companies (SMBs) or departments within larger companies have historically been road-blocked from these features & capabilities
basic architecture what you will need
Basic Architecture – What You Will Need
  • At least two servers for failover, one server for management
  • Two or more SAN storage devices (Fibre Channel* or iSCSI)
  • Shared Network (* = plus FC fabric and FCIP extension if FC storage)
  • Replication capabilities on servers or storage
requirements for smb replication
Requirements For SMB Replication
  • Top 5 criteria in addition to being SAN storage
    • Cost Effective
    • Protected & Reliable
    • Easy Upgrades and Management
    • Reasonable Performance
    • NOT burdened with additional features that applications, operating systems, and server virtualization provides
  • iSCSI + Host-Based Replication is a good technology match for these criteria
leveraging replication features for dr
Leveraging Replication Features for DR
  • What are the concerns
    • Bandwidth & Latency of WAN
    • Hardware-dependent failover
  • Addressing Those Concerns
    • Real-time replication that is optimized for WAN
      • Replicates with compression & bandwidth limiting optimization
    • Across Hardware and Virtualization
      • Failover across subnets, support for dissimilar hardware and storage, between physical or virtual systems in either direction
    • Value of Host-based with Double-Take Availability
      • 3 Levels of Compression, byte level differences only, real-time or scheduled/throttled, full-server or data-only
top questions key takeaways
Top Questions & Key Takeaways
  • Top Questions
    • For small environment (5 VMs & <100 users), how much Bandwidth?
    • What is a practical distance for small environment DR (Latency)?
  • Solution Key Takeaways
    • Protecting data is important, but cost and complexity prevent small companies and departments from doing it for most data.
    • Backup alone cannot provide for a rapid failover or recovery from a disaster; replication provides superior RTOs & RPOs.
    • DR for Windows servers (incl VMs) can be done both easily & affordably with DroboElite and Double-Take Availability.
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Questions?Feedback & comments also welcome @[email protected], or on Twitter @ DroboMore DroboElite solutions @ http://www.drobo.tv

example full server protection failover
Example – Full Server Protection & Failover
  • Hardware and Application independent
    • Physical or Virtual
  • Target requires only a base Operating System
example data protection and failover
Example – Data Protection and Failover
  • Only replicates application data
    • Less data across the wire
  • Faster failover possible
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