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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Windows Disaster Recovery (DR) with Replication using Double-Take Availability

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Windows disaster recovery dr with replication using double take availability

Windows Disaster Recovery (DR)with Replication using Double-Take Availability


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


How host based real time replication works

How Host-Based Real-Time Replication Works


Putting it together dr with 16tb of san

Putting It Together – DR with 16TB of SAN


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.


Windows disaster recovery dr with replication using double take availability

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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