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B-2 Dell PowerVault 200S, 201S, 210S, and 211S Storage Systems Installation and Service Guide
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The fan modules cool the power supplies and storage system by drawing air in
through various openings in the storage system and blowing it out the back. However,
the fan also draws dust and other particles into the storage system, causing contami-
nant buildup, which results in an increase in the storage system's internal
temperature and interferes with the operation of various system components.
To avoid these conditions, Dell recommends keeping your work environment clean to
reduce the amount of dust and dirt around the storage system, thereby reducing the
amount of contaminants drawn into the storage system by the power supply fan. In
particular, you should keep the exterior of your storage system clean.
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Dell recommends that you use the following tools and accessories when you clean
the storage system:
A soft, lint-free cleaning cloth — Moisten the cleaning cloth with a dishwashing
detergent solution to clean the exterior of the storage system.
A small vacuum cleaner with a brush attachment — Use the vacuum cleaner to
remove dust and dirt from the exterior of the storage system.
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To clean the exterior of the storage system, perform the following steps:
1. Turn off the storage system and disconnect it from its power source.
2. Use a vacuum cleaner to remove any dust from the slots and holes on the stor-
age system.
3. Use the moistened cloth to wipe the storage system cover.
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This section discusses various environmental factors that can adversely affect system
performance and longevity.
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Temperature extremes can cause a variety of problems, including premature aging
and failure of chips or mechanical failure of devices. Extreme temperature fluctuations
can cause chips to become loose in their sockets and can cause expansion and con-
traction of disk drive platters, resulting in read or write data errors. When you perform
a low-level format operation on a hard-disk drive, it is important to ensure that the
drive's surrounding temperature is at or near the temperature at which the drive will
be operated. Failure to do so can result in relocation of the tracks on the disk platters.