Dimensional Requirements; Rack Space Considerations; Maintaining Minimum Clearances; Minimum Clearances - HP 3PAR StoreServ 7450c Planning Manual

Customer cabling (power, FC, SAS, and Ethernet) must be routed in an organized path so it
does not restrict the removal of controller nodes or obstruct the servicing area.
The rail kits for the 7000 series node and drive enclosures have a supported depth range of
24.5 inch to 32 inches (measurement between the inside of the retma rails from front to back).
Shipment of the units installed in the third party racks is NOT supported.
Enclosure Installation
Two people are required to lift the enclosure during any servicing purposes.
Service Limitations (Also applicable to third party rack installations)
HP will not perform the following tasks:
Assemble the rack from components
Configure the rack hardware
Position the rack
Perform any extensive racking, re-racking, or cabling activities, including cabling activities
involving conduits, raceways, patch panels, and movement or configuration of computer room
floor panels.
Complete a full site inspection, such as a comprehensive analysis of power, cooling and
humidity, airborne contaminants, vibration, and sufficient structural capability of the raised
floor in the data center to accommodate the weight of the array to be installed.

Dimensional Requirements

Refer to "Physical Specifications" (page 10)
If you are installing any HP equipment in a four-post rack, the rack must comply with the minimum
and maximum specifications. A clear path between the front and rear vertical (RETMA) rails must
be established. There must not be any obstructions to the area when installing the rails and
enclosures.

Rack Space Considerations

HP highly recommends installing enclosures in contiguous rack space because it ensures the copper
SAS reaches the connecting ports, and provides consistency for servicing and installation. When
additional drive enclosure are added in the future, it is recommended to place them with the initial
enclosure, but it is not required.
Your site configuration should also specify an area of contiguous space within the rack for installing
HP equipment, such as the top, bottom or middle part of the rack. HP recommends considering an
area closest to the location of the sourced host cables when you are determining an installation
area.
Build the rack from bottom to top.

Maintaining Minimum Clearances

Proper clearances should be maintained for all mounted installations to allow for proper ventilation,
cabling and access for maintenance.
Table 17 Minimum Clearances
Service
Ventilation
Front: 36 inch (91.4 cm)
Rear: 30 inch (76.2 cm) x 19 inch (50.8 cm) unobstructed clearance directly behind the enclosure.
Sides: n/a
Front: 12 inch (30.5 cm)
for physical specifications of the enclosures.
Dimensional Requirements 31