VERITAS NetBackup 5240, Руководство по установке оборудования

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Heat dissipation
Air flows from the front of each unit and exits from the rear of each unit. You can
install the optional 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
appliance and the storage shelves.
Note: Data centers with two-foot spaces in the front and in the back of the appliances
are acceptable with proper cooling and ventilation.
Veritas provides the following requirements to ensure sufficient cooling.
■
Veritas requires that you install the system in a National Engineering
Manufacturer's Association (NEMA)-certified or equivalent rack.
■
A minimum of 3 inches (7.6 cm) of space must be between the front of an
appliance and the cabinet door or other air block.
■
A minimum of 6 inches (15.2 cm) of space must be between the rear of an
appliance 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.
■
Veritas strongly recommends that customers insure the appliance and the
storage shelves have sufficient cooling, especially when installed in a fully
enclosed rack.
Refer to the NetBackup 5240 Appliance Product Description for specifications about
temperature and cooling.
NetBackup Appliance documentation
Determining SAS-3 cable length
Before you install and connect the hardware, be sure to verify that you have the
correct length of the SAS-3 cables for your setup.
Each rack unit (RU) is 44.50 mm (1.752 inches) in height. The NetBackup 5240
Appliance and the NetBackup 5240 Storage Shelf are both 2RU high.
19 Preinstallation requirements
Heat dissipation