• Bundle signal cables together in a rectangle so that the upper and lower air-baffle sliders are closed as
far as possible. Do not bundle signal cables together in a circular formation.
Placement of 7965 racks with 1164-95X installed
When model type 7965 racks with the 1164-95X rear door heat exchanger are placed directly next to
another model type 7965 with the 1164-95X rear door heat exchanger, the rear door heat exchanger can
open approximately 130 degrees to allow for rear access.
If a 7965 rack with the 1164-95X rear door heat exchanger is placed next to a wall, building column, or
any other obstruction, approximately 38.1 cm (15 in.) of space must be left between the hinge side of the
rear door heat exchanger and the wall to ensure proper opening of the rear door heat exchanger for rear
service.
If another rack type is placed next to a 7965 rack with the 1164-95X rear door heat exchanger, the other
rack must be positioned so that it does not extend beyond the rear of the 7965-rack frame.
Required tools
The following tools are required onsite to install the rear door heat exchanger:
• Forged steel Standard Jaw Pincers
• Hose cutter
• Bleeding hose
• Nut drivers or sockets
• Screwdriver
Important: You must obtain these tools before you start the installation process.
Rack installation specications for racks that are not purchased from IBM
Learn about the requirements and specications for installing IBM systems into racks that were not
purchased from IBM.
Learn about the requirements and specications for 19 in. racks. These requirements and specications
are provided as an aid to help you understand the requirements to install IBM systems into racks. It is
your responsibility, working with your rack manufacturer, to ensure that the rack that is chosen meets the
requirements and specications that are listed here. Mechanical drawings of the rack, if available from the
manufacturer, are recommended for comparison against the requirements and specications.
IBM maintenance services and installation planning services do not cover verication of non-IBM
racks for compliance with Power Systems rack specications. IBM offers racks for IBM products that
are tested and veried by IBM development labs to comply with applicable safety and regulatory
requirements. These racks are also tested and veried to t and function with IBM products. The
customer is responsible for verifying with the rack manufacturer that any non-IBM racks comply with
IBM specications.
Note: IBM 7965-S42 racks meet all the requirements and specications.
Rack specications
The general rack specications include the following specications:
• The rack or cabinet must meet the EIA standard EIA-310-D for 19 in. racks published August 24, 1992.
The EIA-310-D standard species internal dimensions, for example, the width of the rack opening
(width of the chassis), the width of the module mounting flanges, and the mounting hole spacing.
• The front rack opening must be a minimum of 450 mm (17.72 in.) wide, and the rail-mounting
holes must be 465 mm plus or minus 1.6 mm (18.3 in. plus or minus 0.06 in.) apart on center
(horizontal width between vertical columns of holes on the two front-mounting flanges and on the two
rear-mounting flanges).
34
IBM Storage ScaleSystem Utility Node: Hardware Planning and Installation Guide
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