Double-Take Availability: High Availability for Windows

Real-time High Availability: Total workload mobility and protection for unlimited IT evolution

Vision Solutions' Double-Take® Availability is the first real-time high availability and disaster recovery solution to offer options for physical, virtual or cloud servers. Double-Take® Availability offers the perfect opportunity to leave nothing to chance. Fine-tune your recovery and efficiency targets with flexible RTO and RPO.

No matter the size of your business, you can take advantage of full-scale protection at one affordable price. Platform, storage and hardware agnostic, Double-Take Availability reduces your overall operating costs by optimizing existing infrastructure and scaling with whatever you build in the future.

See what's new with Double-Take 7.1. Click here to learn more:

Double-Take Availability offers continuous protection and instant workload recovery on any combination of physical, cloud or virtual servers. We offer better application availability via our patented technology, which allows flexible, granular recovery for files, directories and entire servers.

  • Provides comprehensive high availability and disaster recovery
  • Supports any combination of physical, virtual and cloud servers
  • Enables real-time or periodic protection for applications and data
  • Uses your existing hardware, software and network
  • Enables easy, full-server failover in minutes, not hours
  • Supports dissimilar hardware
  • Manages the entire protection environment from a single unified console
  • Protects Exchange, SQL, SharePoint, BES, Oracle, mySQL and more
  • Provides multiple recovery points in case of logical data corruption or data has no distance limits between servers
  • Provides near-zero data loss
  • Product Evaluations

    Replicate and recover your Windows servers over any distance. Automatic fail over for physical and virtual machines.

    Get started now

  • Free White Papers

    Double-Take Availability Technology Overview

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    The Data Protection Benchmark Report-The Road to Recovery

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    Assessing the Financial Impact of Downtime

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    The Power of Information Availability - What Every Senior Executive Should Know

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Double-Take Availability is the first HA/DR solution on the market to offer agent-based and agentless protection.

  • Flexes to fit your RPO goals
  • Protects entire virtual servers, regardless of OS
  • Creates and auto-provisions your virtual disaster recovery environment
  • Protects cluster workloads to different physical locations without using shared storage
  • Provides “set it and forget it” functionality from one unified console
  • Protects and migrates to and from any combination of physical, virtual and cloud servers
  • Offers manual or remote installation and configuration
  • Enables automated and push-button, on-demand failover with push-button failback
  • Monitors server network and services
  • Validates settings with pre-flight check and auto-fix features
  • Data compression option for more efficient bandwidth usage – plus encryption for secure over the wire transmission.
  • Forwards replication statistics and events to enterprise management tools
  • Ensures the integrity of real-time replicated data with patented write-order consistency
  • Product Evaluations

    Replicate and recover your Windows servers over any distance. Automatic fail over for physical and virtual machines.

    Get started now

  • Free White Papers

    Double-Take Availability Technology Overview

    Read the white paper

    Windows Server Multi-Site Clustering with Double-Take

    Read the white paper

Double-Take Availability offers total protection and adapts to changes in any technology.

  • Provides complete flexibility when designing a recovery plan
  • Accommodates any application or hardware
  • Protects any combination of servers across any distance
  • Adapts to whatever new technologies you choose
  • Works on your existing hardware, storage and WAN infrastructure
  • Efficient over narrow bandwidth networks
  • Eliminates the need to buy special hardware to protect your servers

How It Works

Vision Solutions’ Double-Take Availability for Windows provides complete data protection – plus enables instant recovery from any server outage. Double-Take Availability also provides total workload mobility, resource optimization and consolidation via non-disruptive workload migration across computing platforms.

By continuously capturing byte-level changes and asynchronously replicating the changes in real-time to any storage across any distance, locally or globally, Double-Take Availability ensures you won’t lose any data or suffer through downtime. You can also implement failover clusters without shared storage or geographic limitations, eliminating the single point of failure and giving you the freedom to locate cluster nodes wherever you want.

Windows Requirements

  • Windows Server 2003 / 2008 Standard, Enterprise and Datacenter Editions (32-bit / 64-bit)
  • Windows Server 2012 Foundation, Essentials, Standard, Datacenter Editions

Hyper-V Requirements:

  • Microsoft .NET 3.5 SP1
  • VMs stored on a standard NTFS file system
  • TCP/IP with static IP addressing or reserved DHCP addressing for Hyper-V hosts

VMWare Requirements

  • VMware VirtualCenter 2.x or later
  • VMware ESX Server 3.x or later
  • VMware ESXi 5.0 or later