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Level 03c, May 2011
Considerations for multiple system installations
When integrating a z10 BC into an existing multiple-system environment, or when
adding additional systems to an installed z10 BC, consider the following factors:
v Thermal interactions
v Floor placement
v Floor loading
v Inter-system cabling
Although computer room floor space is valuable, for optimal cooling, it is
recommended that z10 BCs have a 1220 mm (48 in) aisle between rows of
systems to reduce surrounding air temperature. See "Cooling recommendations"
on page 28.
The z10 BC must be precisely placed for the cable openings to match the floor
cutouts. There is +/- 5 mm (0.2") tolerance for positioning the frame in relation to
the floor tiles. This tolerance assumes edging around the tile cutouts that does
not exceed 15 mm (0.6") in width.
When trying to optimize floor space utilization, floor loading weight distribution
rules may be inadvertently violated by overlapping weight distribution areas of
adjacent machines. Obtain the services of a qualified structural engineer if you
are uncertain of the floor load assessment for your computer room.
Integrated Cluster Bus (ICB) cables linking systems together are limited to 10
meters (33 ft) in length. Because some of that length is used under the covers of
the connected systems to reach internal plugging points, the usable length of
these system links is further reduced to a maximum of 7 meters (23 ft). See
"Integrated cluster bus channel" on page 80.
Chapter 3. Models and physical specifications
31
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