IBM 9835-415, Deployment Manual

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The storage system is certified for safe operation and is compliant with IEC, EN,
UL, CSA 60950-1 standards. However, if leakage detection circuit breakers are
required by local electrical practice, the breakers must be sized for a
leakage-current rating of 100 mA or greater to reduce the risk of server outage
caused by erroneous and spurious tripping. For more information, see “Leakage
current” on page xiv.
v Main power cables with the following feature codes must meet specific design
certifications:
– 1050 and 1052 use bulk wire that meets UL and CSA safety agency
certifications, but not the EU harmonization certification.
– 1051 and 1053 use bulk wire that meets the EU harmonization certification,
but not UL and CSA safety agency certifications.
Environmental requirements
Ensure that the installation site meets all operating environment requirements for
the IBM FlashSystem A9000R system.
Procedure
To ensure that the installation site meets the requirements, complete the following
steps:
1. Use adequate ventilation, especially during the first 120 days of continuous
operation. Ensure that there is an average room outdoor intake air rate of 0.4
air change per hour.
2. Keep the front and rear of the rack clear of obstruction.
3.
Verify that you can meet the environmental operating requirements at the air
intake locations.
4. Consider optimizing the air circulation and cooling for the rack by using a
raised floor, adjusting the floor layout, and adding perforated tiles around the
air intake areas.
The following sections cover the environmental requirements for your
FlashSystem A9000R system:
v “Operating and shipping environment requirements”
v “Air circulation and cooling” on page 33
v “Contamination information” on page 35
v “Acoustic declaration” on page 37
v
“Operating vibration requirements” on page 37
Operating and shipping environment requirements
You must verify that your operating environment is compatible with the required
specifications.
With or without the rear-door heat exchanger option, the air that enters the front
door of the FlashSystem A9000R system must meet the following requirements.
Operating (powered on)
v Temperature: 10 - 35°C (50 - 95°F)
v Relative humidity: 20 - 80%, non-condensing
v Maximum wet bulb temperature: 25°C (77°F)
v Maximum altitude: 2134 m (7000 ft)
Non-operating (powered off)
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IBM FlashSystem A9000R Models 9835-415 and 9837-415 Deployment Guide