DoubleTake - Virtual Server Failover

Virtual server technologies provide businesses and IT departments with the ability to do more with less, enabling the consolidation of data and applications onto a single server. The result is reduced costs, simplified IT management, and minimized space requirements. The need to protect these servers becomes even more critical as their value is increased with virtualization technologies.

Consider the impact of a failure within a virtualized server. Instead of incurring downtime of just one application, you will now incur downtime of multiple applications. While virtual machine technologies offer advanced server solutions, they require advanced disaster recovery and availability solutions that provide protection against data loss and downtime for the entire environment. Double-Take from NSI Software delivers enterprise-class disaster recovery and high availability solutions for these cutting-edge virtual environments. Double-Take is the industry-leading replication and availability solution that offers local and long-distance protection against most any outage, from a failed power supply to a regional disaster.

Double-Take for Virtual Systems is the industry's first disaster recovery and availability solution designed for virtualized server environments. Your tape backup solution can provide for the long-term archival needs of the virtual servers; however tape can't provide the level of recoverability typically required for critical business applications. Rebuilding one application from tape can be a difficult and lengthy process. Having to recover four or more applications at the same time from tape to rebuild the one physical server will result in an excessive period of downtime, likely more than the business can afford. Double-Take replication solutions are the perfect compliment to existing tape backup solutions to deliver a much quicker time to recover with minimal to no loss of data. Double-Take can also maintain availability of the virtual servers by providing failover monitoring and client redirection to a standby server to minimize lost productivity. With Double-Take for Virtual Systems you can achieve the same world-class protection for your virtualized environment as you can for your standalone servers. With the flexibility and robust feature set of Double-Take, you can implement the solutions that ensure these virtualized environments are protected from data loss and downtime.

Solutions That Fit

The implementation of virtual servers enables businesses to better meet the ever-growing demands on budgets and resources. You need a data protection solution that is able to seamlessly integrate with your particular configurations without fail. The flexibility of Double-Take allows for a virtualized source, target, or both, allowing for the protection of virtual servers as well as using a virtualized server as the replica target for a cost effective DR solution.

Disaster Recovery for Virtualized Machines

Protecting the data on a virtual machine is absolutely crucial. Double-Take for Virtual Systems deploys easily within each virtual session to protect each individual application independently. Options include replicating all virtual sessions to a single physical server or to a virtualized server. The patented Double-Take architecture allows you to design and implement the solution that's right for your business.

Implementing a disaster recovery solution can be simplified using virtual technologies and result in a much lower overall cost. Because most applications typically require their own dedicated server, providing high availability or failover protection to these applications requires a dedicated target server. With Double-Take each application can replicate and fail over to a dedicated virtual session on a single physical server, eliminating the need to deploy and manage multiple target machines. The result is a very high level of application protection and availability at a much lower TCO. Virtual server solutions offer improved efficiency and lower IT costs. Double-Take for Virtual Systems was developed specifically for virtual environments to offer businesses advanced solutions for protecting these highly valuable servers.

• Flexible configuration options
  Replicate from and to a virtualized environment.
• Continuous, asynchronous, byte-level replication
  Double-Take monitors changes to all protected files and replicates only the actual bytes that change.
• Unlimited distance replication
  Replicate to a disaster recovery site as far away from your production server as you would like, over standard IP networks, for maximum protection against data loss from regional crises and other disasters.
• Supports leading virtual technologies
  including VMware ESX and GSX server and Microsoft Virtual Server.
• Hardware independent
  The flexibility to choose best-of-breed hardware and software as your enterprise grows.
• Application independent
  Patented STAR (sequential transfer asynchronous replication) technology enables complete data replication integrity for virtually any application.
• Certified Windows compatibility
  Double-Take is certified for all editions of Windows Server 2003 and Windows 2000.
• Exclusive resource planning tool
  Simulate your replication solution and estimate the bandwidth you'll need to go live.
• Flexible Bandwidth Scheduling
  Impose higher or lower network usage limits during those times when most appropriate for your business. Limit network use of Double Take during busy work hours and increase or remove these limits during non-peak times for very efficient replication with the least amount of impact on production resources.
• High availability and failover
  To maintain availability of virtualizedservers.
• Integrate with existing backup solutions
  Use replicated data to perform remote backups and snapshots at any time without impacting your production server.
• Queued task processing
  Insert commands in the replication queue to automatically trigger remote backups, snapshots, or other tasks at specific times or in response to specific application events.
• Uses standard network protocols
  Replicate over any existing IP network – LAN,WAN, VPN or NAT – so you can deploy without additional infrastructure costs. Many-to-one failover. Allow multiple production servers to use the same target server.
• Intelligent Data Compression
  Improve performance and reduce network usage by compressing only the data that will benefit.
• Protect Exchange, NAS, SAN and more –
  and bulletproof your business continuity, data migration, centralized backup, and server consolidation operations.