■
Install one set of rails. Then install the device. Do not install all of the rails at
one time as you may not leave enough room for the devices.
■
Be aware of the depth of the rails and the devices. Ensure that the distance
between cabinet posts accommodates the rails, devices, cables, extending ears,
and PDU strips.
■
Hold a 1m SAS3 cable between the compute nodes and the Primary Storage
Shelf and between the Primary Shelf and the last Expansion Storage Shelf.
Visually confirm that the cables are long enough.
Heat dissipation guidelines
Air flows from the front of each unit and exits from the rear of each unit. You can
install the optional compute node bezel without disruption to the airflow.
For best ventilation, the rack cabinet should:
■
Be at least 100 cm (4 feet) from walls.
■
Be at least 100 cm (4 feet) from other cabinets on the front and back of the
compute node and the storage shelves.
Note:
Data centers with two-foot spaces in the front and in the back of the compute
nodes are acceptable with proper cooling and ventilation.
The following requirements ensure sufficient cooling to the devices.
■
Veritas requires that you install the devices in a National Engineering
Manufacturer's Association (NEMA)-certified or equivalent rack.
Note:
The 5U84 storage shelf is as long as a standard IEC-compliant rack. Be
sure that your rack cabinet and Power Distribution Units (PDUs) accommodate
the length of the storage shelves.
■
A minimum of 3 inches (7.6 cm) of space must be between the front of a compute
node and the cabinet door or other air block.
■
A minimum of 6 inches (15.2 cm) of space must be between the rear of a
compute node and the cabinet rear or other air block.
■
A minimum of 1 inch (2.5 cm) of space must be between the front of a storage
shelf and the cabinet door or other air block.
■
A minimum of 2 inches (5.0 cm) of space must be between the rear of a storage
shelf and the cabinet rear or other air block.
24
Pre-installation requirements
Heat dissipation guidelines
