Essential Guide

Why you should have a disaster recovery testing plan in place

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Smooth your DR test plan with available technologies

A disaster recovery test plan can prevent possible computing disasters and help users recover from unforeseen events. Discover how to make your organization more resilient.

Today's disaster recovery technologies can make the process of testing the recoverability of critical systems a...

snap. A traditional DR test plan involves many people; extensive preparations to ensure the availability of systems, networks, databases and other resources; and thorough documentation of procedures. And that's before the test even starts.

By contrast, advances in DR technology now make it possible to perform a system failover to a backup environment in seconds and then fail the recovered system back to its normal production status in the same amount of time. The "old-fashioned" way can often take hours, and if the DR test is unsuccessful, additional hours of forensic work may be needed to determine what went wrong and conduct a follow-up test.

Here are some available technology tools and resources that can make a DR test plan a more pleasant and less time-consuming experience.

High-availability environments

Migrate your existing systems and infrastructure to a high-availability (HA) environment to build in additional layers of fault tolerance or load balancing. This hardens your IT infrastructure and makes it more resistant to disruptions, and can also increase your ability to prevent a disaster from happening.

However, if one or more HA platforms, data, applications or infrastructure elements are disrupted, available technology offerings can greatly simplify your ability to quickly recover data and move critical systems to alternate platforms, where they can maintain virtually uninterrupted operations. An example of this kind of DR software is Double-Take from Vision Solutions. Once the preparations have been made, and the recovery environment is operational, launching Double-Take is simple and failover of the primary system to the backup can take a matter of minutes. Once the emergency has been addressed, failing back to the original platform also occurs quickly.

One pixel Expert Jon Toigo speaks about best
practices for disaster recovery and backup.

High availability and disaster recovery are not the same. HA ensures the entire platform has sufficient redundancy -- if one or more service components are disrupted, the overall platform or service remains available. By contrast, DR assumes an alternate site with a suitable infrastructure is available so that data or the disrupted service can be recovered at the standby site.

DR products

Many system vendors offer disaster recovery to enhance their products and services. It may not be necessary to invest in a third-party offering if your vendor offers its own DR products. For example, VMware offers numerous DR products to protect the many virtual machines your organization will develop. Check for available DR testing support options.

Cloud service providers that offer DRaaS typically present a suite of cloud-based recovery options for backing up data, hardware and software -- they can help you prepare a DR test plan.

Disaster recovery-as-a-service (DRaaS) has quickly become a useful DR option. Cloud service providers that offer DRaaS typically present a suite of cloud-based recovery options for backing up data, hardware and software -- they can help you prepare a DR test plan. Alternatively, you can elect to plan and manage DR tests yourself, and your DRaaS provider can support those efforts.

Despite the many available options for DR testing, you may decide to build your own. Be mindful of the platforms to be recovered and the infrastructure resources available to support a DR test plan, and carefully define your recovery requirements before proceeding. As with any third-party products that generally include their own documentation, thoroughly document your testing procedures.

A DR test plan is important for every IT organization. Mission-critical systems, networks, applications, hardware devices and databases -- as determined in a business impact analysis -- should have a documented recovery strategy and be tested periodically to ensure they can be recovered. Many options are now available to make DR testing a much easier process, and access to them should hopefully encourage more regular testing.

Next Steps

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This was last published in December 2015

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Essential Guide

Why you should have a disaster recovery testing plan in place

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What is your favorite DR testing technology?
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Disaster Recovery solutions are only as good as their proof points.  And if you are only scheduling a "test" to prove out that your critical applications will be available when called upon from the DR location once a year or so...you can be in for rude awakening.  

Unitrends ReliableDR offers the type of Recovery Assurance that you need to prove out your DR strategy at the application level as many times as you like per year.   For your first tier applications...that could be as often as every 15 minutes...if you like and for less important applications it can once per month...as an example.  Moreover...the automated reporting provided by ReliableDR will provide status against predefined RTOs and RPOs without your IT team lifting a finger.  Best of all, the only thing required for ReliableDR to work is either a VMware or Microsoft Hyper-V hypervisor at both the source and DR locations.  Nothing more is required.  Try it out yourself.  ReliableDR by Unitrends.
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As you said there are many solutions out there to help and automate DR testing. I agree it is important to achieve that DR automation and be sure you are in compliance with your RPO/RTO metrics in a daily manner not just testing twice a year.

I work for Unitrends, one of those software providers and we provide software to backup/replicate but also DRaaS for our customers with spin-up of VMs from backup in our cloud and daily RPO/RTO compliance reports.

Not sure if I can post links here, but if you let me I will post a link to our DRaaS cloud info.

Thanks!
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High availability and DRaaS are good, but it’s also important to consider geographic location when going with DRaaS. make sure that the data center location is geographically separated from your physical location, or it may not be of any value when the time comes to use it.
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