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Question of the Month: How often do you think your DR plan should be tested?
--Ginny Galletta, IT systems engineer III, Kronos Inc., Chelmsford, MA
"Your DR plan is only as good as the last time you performed it. In a rapidly changing critical services environment where services and administration change daily, then a DR testing plan should be the same, tested daily or weekly. On the other hand, if testing a plan means you have to take applications down in order to fail over, then either updating your DR environment to alleviate this or testing less frequently would probably be considered."
"I expect a test completed quarterly; yearly, we do a complete application test."
This was first published in October 2008