One of the topics we're frequently asked is "what are zinc whiskers?" This perplexing issue is extremely common and is found in data centers and computer rooms of all sizes. 

The below post comes from Rich DeBlasi of SPEC-CLEAN (http://www.specclean.com/).

What are zinc whiskers? 
Zinc whiskers are near-microscopic shavings that affect galvanized metal surfaces, usually the pedestals, stringers and the plenum side of floor panels. Though they can be caused by many factors, it's usually daily wear-and-tear (walking, moving equipment, removing tiles) that generates zinc whiskers. They are also quite small; all but the finest of HEPA filters aren't 100% successful in catching them.

What are the problems that zinc whiskers pose in my data center?
Although benign when undisturbed, zinc whiskers become a problem once they become airborne. They pose a threat to computers and other electrical systems in data centers. Zinc whiskers can be responsible for electrical shorts, impacting circuit impedance and can even cause disk failures, along with other catastrophes

What should I do if I suspect I have a zinc whisker problem?  

Unlike some other situations, the longer the problem goes unchecked, the more extensive (and expensive) the solution is. Getting a lab analysis is a good start; however, hiring a data center cleaning specialist to assess the situation and make a recommendation that outlines the best method for remediating the problem is a mandatory step for any data center that is dealing with possible zinc whisker contamination.

Data center cleaning is something all facility managers need to think about. This type of service should only be performed by companies that are knowledgeable about data center environments. You don't want a traditional cleaning crew to bring in mops and soap that may cause damage to some of the infrastructure. It is recommended that a complete cleaning should happen at least once a year as part of your data center's preventive maintenance best practices.