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Request the “Controlled Environment Testing Report” and look for “Occupancy State.” The status of
the Occupancy State could be one of three: “as-built”, “at-rest” or “operational.” You want to see
“operational.” Most Certified ISO Class 5 Cleanrooms allow engineers to work within the
manufacturer recommended limits of cleanliness during the recovery process.

Glossary of Terms

Head spinning a bit? In order to understand the best
place for your data recovery, we’ve included some terms
to help get a clear picture. They are given in order as
they appear in the article.

HDD: Hard disk drive

Read/Write Heads: The mechanisms that record and
retrieve information on an HDD

Platters: Spinning disks in an HDD on which data is written and stored

Actuator Arm: The armature from which the read/write heads are suspended over the platters in an
HDD

Fly Height: The distance between the platters and the read/write heads in an HDD—3 nanometers,
or about 3/1,000,000,000th of an inch

Cleanroom: A customized laboratory environment in which the air is filtered continuously to reduce
the amount of particulate matter present

Micron: A unit of measurement equal to 0.000039 inches

About the Author

As Director of Engineering, Mike Cobb manages the day-to-day operations of
the Engineering Department including the physical and logical recoveries of
rotational media, SSDs, smart devices and flash media. He also oversees the
R&D efforts for past, present and future storage technologies. Mike makes sure
that each of the departments and their engineers are certified and that they
continue to gain knowledge in their field. Each DriveSavers engineer has been
trained by Mike to ensure the successful and complete recovery of data is their
top priority. Mike Cobb has a B.S. degree in Computer Science from the
University of California, Riverside. Since joining DriveSavers in 1994, Mike has
worked on all aspects of engineering as well as heading the Customer Service Department for
several years. Prior to joining DriveSavers, Mike gained invaluable experience creating mirroring
and compression products while working at Golden Triangle Software in the early 1990’s.

39 Cyber Warnings E-Magazine – October 2015 Edition
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