Minimum Rack, Requirements, Rack Airflow

QuickSpecs

HP ProLiant BL20p p-Class Server Blade

Standard Features

Minimum Rack	Mounts in Compaq/HP, Telco racks and Third Party racks that meet the following criteria:
Requirements	Compatible with 19-inch Standard EIA rail sets

	EIA rail-to-rail depth is 29 - 30"
	Cabinet depth must be at least 36-inch deep overall (Additional min. 3.5-inch clearance from
	rear RETMA rail to rear door, inclusive in the 36-inch overall depth)
	Ample room for top and bottom cable egress (approximately 8 square inches for full rack
	configuration with patch panel)
	Must be capable of supporting 1600 lb (for full rack configuration)
	Perforated front and rear doors to accommodate front-to-back cooling
	Must have 65% open perforation on server blade enclosure doors to support airflow
	requirements
	Optimized for use with the HP 10000 Series racks
	NOTE: If using HP 7000 Series rack, Rack Extension Kit and High Air Flow Rack Door options are
	required.

Rack Airflow	Rack 9000 and 10000 series Cabinets
Requirements	The increasing power of new high-performance processor technology requires increased
	cooling efficiency for rack-mounted servers. The 9000 Series and the 10000 Series Racks
	provide enhanced airflow for maximum cooling, allowing these racks to be fully loaded with
	servers using the latest processors.
	Rack 7000 series Cabinets
	When installing a server with processors running at speeds of 550 MHz or greater in Rack
	7000 series racks with glass doors (165753-001 (42U), and 163747-001 (22U)), the new
	processor technology requires the installation of the High Airflow Rack Door Inserts
	(327281-B21 (42U), 327281-B22 (42U 6 pack), or 157847-B21 (22U)) to promote enhanced
	airflow for maximum cooling.
	CAUTION: If a third-party rack is used, observe the following additional requirements to ensure
	adequate airflow and to prevent damage to the equipment:
	Front and rear doors: If your 42U server rack includes closing front and rear doors,
	you must allow 830 square inches (5,350 sq cm) of hole evenly distributed from top to
	bottom to permit adequate airflow (equivalent to the required 64 percent open area for
	ventilation).
	Side: The clearance between the installed rack component and the side panels of the
	rack must be a minimum of 2.75 inches (7 cm).
	CAUTION: Always use blanking panels to fill all remaining empty front panel U-spaces in the rack.
	This arrangement ensures proper airflow. Using a rack without blanking panels results in improper
	cooling that can lead to thermal damage.
	NOTE: For additional information, refer to the Setup and Installation Guide or the Documentation
	CD provided with the server, or to the server documentation located in the Support section at the
	following URL: http://wwss1pro.compaq.com/support/home/index.asp

DA - 11411 Worldwide QuickSpecs — Version 24 — 9.24.2004

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