Weight And Placement Guidelines; Electrical Guidelines; Ventilation Requirements; Cabling Requirements - HP MSA 2050 User Manual

Weight and placement guidelines

Refer to "Physical requirements" (page 74)
• The weight of an enclosure depends on the number and type of modules installed.
• Ideally, use two people to lift an enclosure. However, one person can safely lift an enclosure if its weight is reduced by
removing the power supply modules and disk drive modules.
• Do not place enclosures in a vertical position. Always install and operate the enclosures in a horizontal/level
orientation.
• When installing enclosures in a rack, make sure that any surfaces over which you might move the rack can support
the weight. To prevent accidents when moving equipment, especially on sloped loading docks and up ramps to raised
floors, ensure you have a sufficient number of helpers. Remove obstacles such as cables and other objects from the
floor.
• To prevent the rack from tipping, and to minimize personnel injury in the event of a seismic occurrence, securely
anchor the rack to a wall or other rigid structure that is attached to both the floor and to the ceiling of the room.

Electrical guidelines

• These enclosures work with single-phase power systems having an earth ground connection. To reduce the risk of
electric shock, do not plug an enclosure into any other type of power system. Contact your facilities manager or a
qualified electrician if you are not sure what type of power is supplied to your building.
• Enclosures are shipped with a grounding-type (three-wire) power cord. To reduce the risk of electric shock, always
plug the cord into a grounded power outlet.
• Do not use household extension cords with the enclosures. Not all power cords have the same current ratings.
Household extension cords do not have overload protection and are not meant for use with computer systems.

Ventilation requirements

Refer to "Environmental requirements" (page 75)
• Do not block or cover ventilation openings at the front and rear of an enclosure. Never place an enclosure near a
radiator or heating vent. Failure to follow these guidelines can cause overheating and affect the reliability and
warranty of your enclosure.
• Leave a minimum of 15 cm (6 inches) at the front and back of each enclosure to ensure adequate airflow for cooling.
No cooling clearance is required on the sides, top, or bottom of enclosures.
• Leave enough space in front and in back of an enclosure to allow access to enclosure components for servicing.
Removing a component requires a clearance of at least 37 cm (15 inches) in front of and behind the enclosure.

Cabling requirements

• Keep power and interface cables clear of foot traffic. Route cables in locations that protect the cables from damage.
• Route interface cables away from motors and other sources of magnetic or radio frequency interference.
• Stay within the cable length limitations.

Management host requirements

A local management host with at least one USB Type B port connection is recommended for the initial installation and
configuration of a controller enclosure. After you configure one or both of the controller modules with an Internet
Protocol (IP) address, you then use a remote management host on an Ethernet network to configure, manage, and
monitor.
NOTE: Connections to this device must be made with shielded cables–grounded at both ends–with metallic RFI/EMI
connector hoods, in order to maintain compliance with NEBS and FCC Rules and Regulations.
for detailed size and weight specifications.
for detailed environmental requirements.
Management host requirements 73