HP 3PAR Betriebsanweisung PDF herunterladen (Seite 24)

Figure 12 Hot-Aisle/Cold-Aisle Layout

Form rows of racks or cabinets perpendicular to air conditioners. This formation facilitates an

unobstructed flow of heated air down the aisles to the air conditioner return ducts. Heated air must

not be forced to travel over or between the cabinets to get to the air conditioner return ducts. Doing

so could heat the air in the cold aisles. Ensure that any free-standing equipment does not allow air

to flow between the hot and cold aisles.

A cold aisle has perforated floor tiles or grates that enable cold air to rise from the raised floor

whereas the hot aisle has no tiles or grates so that hot air and cold air do not mix. Seal cable

cutouts in both hot aisles and cold aisles to increase under the floor pressure and to eliminate cold

or hot air redirection. To further optimize the airflow in hot and cold aisles, install blanking panels

at the front of all unused cabinet spaces so that hot air does not recirculate to the system’s cold air

inlet.

Providing for Service Access

HP 3PAR Storage systems are housed in 2M (40U) cabinets that measure 76.4 in. (194 cm) x

23.8 in. (60.5 cm) x 36 in. (91.4 cm). Cabinets feature locking rear doors and removable side

panels and fascias to improve access while installing, cabling, and servicing components.

When establishing an operating site for an HP 3PAR Storage system, provide for adequate access

to cabinets by following the access area recommendations in Table 12 (page 25).

24 Structural/Environmental Considerations

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HP 3PAR Betriebsanweisung Seite 24