James Quin, lead research analyst with Info-Tech Research Group (www.infotech.com), says:

How often should data center and IT managers test their disaster plans?

Realistically speaking enterprises should be continually testing their plans. The point of testing is less about building the skills to Enterprises should try to avoid testing the DR in “broad strokes” – the likelihood that catastrophic failures will occur is far lower than the likelihood of localized “small-scale” outages. Further, broad testing requires a tremendous leveraging of resources while scenario testing can be accomplished with less effort. Over time, the sum of the work performed in scenario testing will more than equate to the gains that can be made with catastrophic failure testing.