Cleaning a Data Centers Raised Floor

Cleaning a Data Centers Raised Floor
Ken Koty
Ken’s Korner
Cleaning Tips
Beware Dirty Floors
In most cases, a data center’s under floor is □ Always vacuum the floor prior to moping. Never use a dry mop;
it will push dirt into the perforated tiles cracks and openings. If
also its air plenum. Not cleaning beneath a
allowed to collect in the perforated tiles, the dust and dirt will
raised floor can result in containments being
reduce airflow through the tile openings, starving important cool
drawn into sensitive computer equipment,
air from key electrical equipment. If the dirt is pushed through
which can cause overheating and shorten their
the perforations, it will circulate back into the air and collect on
equipment throughout the data center.
Dirt can plug up perforated air tiles reducing □
the output as well as A/C filters and cooling
coils. It can get into the cooling vents on the
individual pieces of equipment within the
server cabinets which will lessen their ability to
cool themselves. Over time the accumulation
of dust and dirt within electronic equipment
will lead to overheating and failure. Keeping
your data center clean, both above and below
the raised floor not only improves its
aesthetics, and energy efficiency, but also □
When cleaning under raised floor be sure not to remove too
many floor tiles at one time. This can cause a drop in static
pressure under the raised floor and resulting in equipment
overheating in other areas of the data center raised floor
Don’t limit your cleaning to the floor, prior to cleaning the raised
floor, clean the server racks and cabinets first, starting from the
top of the room and work your way down. Dust the tops of the
racks first using a vacuum with a HEPA filter.
Take steps to limit or eliminate dirt and debris from even
entering the data center. First place sticky mats at all entrances
to the data center, and utilize a staging area for unpacking
servers prior to bringing them into the clean area. Limit the
introduction of contaminants from entering the data center and
you’ll find keeping a data center clean is a much easier job.
Under floor contaminants will also
contribute to dirtier environment throughout
the raised floor area as the debris will be
circulated throughout your data center. This □ When cleaning perforated tiles use a vacuum cleaner with a good
will also lead to more frequent cleaning of
HEPA filter to be sure all the dirt that gets trapped in them is
cooling coils in your CRAC/CRAH units and
removed and not just blown back into the room.
replacement of filters if you want to maintain
cooling capacity. Note: while cleaning under □ The raised floor should be cleaned quarterly and the under floor
should be cleaned as needed, at least once a year.
the raised floor look for any black rubber dust
in front of the A/C units which can be a sign of
misaligned blower belts. Not only will the
misaligned belt contribute contaminants into
the under floor plenum, but it is also an
indication of possible future
5401 Smetana Drive
problems if the belts aren’t For Prefabricated UL Listed Data Center
Minnetonka, MN 55343
replaced and realigned.
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Cleaning Tools
Never use a broom or dry mop, this only pushes
contaminants around and often leaves them
suspended in the air, only to settle on another spot on
the floor.
Mops and wiping cloths should be made of low lint
material designed to be used in clean area
environments. The mops should be used only in the
data center clean areas, don’t use mops that have been
previously used outside the computer room.
Good vacuum cleaners with HEPA filter systems. These
vacuum cleaners should be dedicated for cleaning the
data center only.
When using power scrubbing equipment on the raised
floor tiles make sure you are plugging them into
maintenance outlets only.
Only use low speed
scrubbers on the raised floor; the higher the speed the
greater the chance of creating airborne particles and
you don’t want to risk the scrubbing equipment
bumping into racks and cabinets.
When using cleaning chemicals, be sure they are
approved for the data center environment.
All attachments and tools utilized for cleaning in the
data center should be non-conductive, and if corded,
only plugged into maintenance outlets not empty rack
PDU outlets.
Cleaning Staff
When personnel clean under the raised floor they
should be properly trained and made aware that they
must be very careful when cleaning around power and
communication cables. Moving or pulling on these
cables can cause an outage.
If your people are properly trained they can do the
cleaning. Be sure they are properly supervised during
the process.
If using an outside cleaning service, ADCCP
(Association of Data Center Cleaning Professionals)
requires that all certified data center cleaning vendors
must demonstrate that their cleaning processes comply
with accepted data center cleaning standards.
ADCCP also requires that all certified data center
cleaning vendors demonstrate they have appropriate
and minimum insurance coverage in accordance with
accepted industry standards.
If you decide to use an outside vendor ask for
references and be sure to call them and inquire if there
were any issues with the vendor.
For Prefabricated UL Listed Data Center
Power Distribution Cables
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  
Ken Koty; former data center facilities manager with over 30 years of hands-on experience shares management practices that made him a
12 year award recipient for continuous uptime from the Uptime Institute. PDU Cables does not guarantee the results of outcomes by using
information contained in this document..
5401 Smetana Drive
Minnetonka, MN 55343
(866) 631-4238 Toll-Free
(800) 336-2801 Fax
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