Double-Take Livewire - Real Time Protection For Less - InformationWeek

InformationWeek is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

IoT
IoT
News
Commentary
9/22/2008
07:17 PM
Howard Marks
Howard Marks
Commentary
Connect Directly
Twitter
RSS
E-Mail
50%
50%

Double-Take Livewire - Real Time Protection For Less

Double-Take's eponymous flagship product was one of the first high-availability solutions for Windows providing asynchronous replication and failover even before Windows NT 4.0 hit the mainstream. Over the years, it has fine-tuned the data capture and replication core of the product while adding features to simplify the process of recovering common applications, making Double-Take Software the market leader for host-based replication.

Double-Take's eponymous flagship product was one of the first high-availability solutions for Windows providing asynchronous replication and failover even before Windows NT 4.0 hit the mainstream. Over the years, it has fine-tuned the data capture and replication core of the product while adding features to simplify the process of recovering common applications, making Double-Take Software the market leader for host-based replication.The problem with Double-Take and all its direct competitors such as CA WANSync, Neverfail, and SteelEye, is that you have to set up a recovery server, real or virtual, to take over for each server you're protecting. While this enables recovery times of a few minutes as the recovery server restarts with the personality of your Exchange or SQL Server, it can be an expensive way to support applications that have less demanding recovery time objectives.

Livewire leverages Double-Take's file system filter and replication engine while allowing you to use a single target server to protect multiple source servers. The trade-off is that Livewire uses a process more like restoring a server from backup than the automated server to server failover process used by Double-Take, so rather than taking 2-5 minutes to recover a server, Livewire will take somewhat longer. Exactly how much longer depends on how much data you have to copy from the target server to your recovery server.

Since Livewire uses Double-Take's real-time replication engine as its data source, recovered servers will come back with their data pretty much up-to-the-minute, depending, of course, on sufficient bandwidth for replication, where conventional backups bring back servers with significantly older data. It even supports VSS to provide multiple restore points and ensure database consistency, with up to 255 snapshots on the target server.

While you can restore your server to a virtual server or physical box with dissimilar hardware, Livewire, unlike true image backup solutions such as Symantec's Backup Exec System Recovery and UltraBac's UBDR Gold Livewire, doesn't do bare-metal restores. Instead, you install Windows on the target server and Livewire merges the drivers from that Windows install into the Windows from your source server. If you're restoring to a VMware Infrastructure host, it will work through Virtual Center to automatically provision a server from a template and then inject the source server into the new VM.

With a list price of $1,295 for each source or target server, Livewire costs significantly less than Double-Take even before the hardware savings from not needing a doppelganger for each of your source servers. From where I sit, it looks like a great solution for those applications that need RPOs better than traditional backups but aren't critical enough to need short RTOs.

We welcome your comments on this topic on our social media channels, or [contact us directly] with questions about the site.
Comment  | 
Print  | 
More Insights
State of the Cloud
State of the Cloud
Cloud has drastically changed how IT organizations consume and deploy services in the digital age. This research report will delve into public, private and hybrid cloud adoption trends, with a special focus on infrastructure as a service and its role in the enterprise. Find out the challenges organizations are experiencing, and the technologies and strategies they are using to manage and mitigate those challenges today.
Slideshows
What Digital Transformation Is (And Isn't)
Cynthia Harvey, Freelance Journalist, InformationWeek,  12/4/2019
Commentary
Watch Out for New Barriers to Faster Software Development
Lisa Morgan, Freelance Writer,  12/3/2019
Commentary
If DevOps Is So Awesome, Why Is Your Initiative Failing?
Guest Commentary, Guest Commentary,  12/2/2019
Register for InformationWeek Newsletters
Video
Current Issue
The Cloud Gets Ready for the 20's
This IT Trend Report explores how cloud computing is being shaped for the next phase in its maturation. It will help enterprise IT decision makers and business leaders understand some of the key trends reflected emerging cloud concepts and technologies, and in enterprise cloud usage patterns. Get it today!
White Papers
Slideshows
Twitter Feed
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.
Sponsored Video
Flash Poll