During the installation of Dell PowerScale H400 nodes, it is standard practice to leave a 1U gap

underneath the chassis to accommodate the Cable Management Tray (CMT). The Cable

Management Tray is essential for organizing and supporting the network and power cables

connected to the node. Proper cable management ensures that cables are neatly routed, reduces

stress on the connectors, and prevents obstruction of airflow within the rack.

According to the Dell PowerScale Hardware Installation and Planning Guide, the inclusion of a Cable

Management Tray improves serviceability and maintains optimal airflow by preventing cables from

hanging in front of the equipment or blocking ventilation paths. By intentionally leaving a 1U gap,

the platform engineer ensures that the Cable Management Tray can be installed without interfering

with the node's operation or the rack's structural integrity.

Reference:

Dell PowerScale Hardware Installation and Planning Guide

Best Practices for Cable Management in Dell PowerScale Systems