IBM 800, Руководство по установке

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The system requires specific service clearances to insure the fastest possible
repair in the unlikely event that a part may need to be replaced. Failure to
provide enough clearance to open the front, rear, left, and right side covers
will result in extended service time.
Machine and Service Clearance Areas
Machine area is the actual floor space covered by the system. Service clearance
area includes the machine area, plus additional space required to open the covers
for service access to the system. For the zSeries 800 system, machine area is 0.83
M
2
(8.9 ft
2
), and the service clearance area is 5.99 M
2
(64.5 ft
2
).
Notes:
1. Machine area includes installed covers.
2. Service clearance area must be free of all obstacles. Units must be placed in a
way that all service areas are accessible. The weight distribution clearance area
extending beyond the service clearance area, such as the area at the outside
corners of the units, may contain support walls and columns.
Cooling Requirements and Floor Cutouts
The zSeries 800 system requires 11.1 m
3
/min. (400 f
3
/min.) of chilled airflow from
under the raised floor for adequate cooling. Air flows through the machine from
bottom to top, exiting at the top of the rear cover. Heated exhaust air should exit the
computer room above the computing equipment. If your computer room uses hot
and cold aisles, the front of the machine should face a cold aisle.
If you are planning an installation on a non-raised floor, refer to Appendix B,
“Environmental Specifications,” on page B-1 for the environmental conditions you
must provide to ensure proper machine operation. After reviewing the environmental
information, return to “Considerations for Multiple System Installations” on page 2-9
read the information about
″
Inter-system cabling
″
, and continue from there.
d = 762 mm (30 in) - front
e = 762 mm (30 in) - rear
f = 762 mm (30 in) - each side
g = 2244 mm (88.3 in) - side to side total
h = 2670 mm (105.1 in) - front to rear total
Minimum Service Clearances
Rear
Front
d
e
h
g
f f
Figure 2-4. System Service Clearance
Level 04a, June 21, 2004
2-6
zSeries 800: Installation Manual for Physical Planning