IBM NeXtScale System, Планирование и руководство по внедрению

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Chapter 5. Rack planning
135
Cooling considerations
It is important that the IBM NeXtScale n1200 Enclosure be installed in an
environment that results in proper cooling. The following rack installation
considerations are important:
򐂰 The rack must have front (server node side) to back airflow.
򐂰
The rack must have front and rear doors with at least 60% open area for
airflow.
򐂰 To allow adequate airflow into and out of the chassis, adhere to the
recommended minimum distances to the front and rear doors, as shown in
Figure 5-10 on page 132.
򐂰
It is important to prevent hot air recirculation from the back of the rack to the
front. The following points should be considered:
– All U spaces must be occupied at the front by a device or a blank filler
panel.
– All other openings should be covered, including air openings around the
EIA flanges (rack posts) and cable passage ways.
– If multiple racks are arranged in a row, gaps between the rack front EIA
flanges must be blocked to prevent hot air recirculation.
򐂰
Seal openings under the front of the racks.
5.4.3 Rack options
The rack options that are listed in Table 5-8 are available for the IBM Enterprise
V2 Dynamic Racks and other racks.
Table 5-8 Rack option part numbers
Part number Description
Monitor kits and keyboard trays
17238BX IBM 1U 18.5-inch Standard Console
17238EX IBM 1U 18.5-inch Enhanced Media Console
172317X 1U 17-inch Flat Panel Console Kit
172319X 1U 19-inch Flat Panel Console Kit
Console switches
1754D2X IBM Global 4x2x32 Console Manager (GCM32)
1754D1X IBM Global 2x2x16 Console Manager (GCM16)