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Hitachi Lightning 9900™ User and Reference Guide 105
5.5.3 Floor Load Rating
Figure 5.22, Figure 5.23, and Table 5.10 through Table 5.13 illustrate the floor loading
ratings for various 9960 and 9910 subsystem configurations.
Table 5.10 Floor Load Rating for 9910 Subsystem
Required Clearance (a+b)
Clearance (C) in meters (feet)
Floor Load Rating
kg/m
2
(lb/ft
2
)
C = 0 C = 0.2 (0.66) C = 0.4 (1.31) C = 0.6 (1.97) C = 1.0 (3.28)
500 (102.4) 0.6 m (2 ft) 0.3 m (1 ft) 0.1 m (.3 ft) 0 0
450 (92.2) 0.8 m (2.6 ft) 0.5 m (1.6 ft) 0.3 m (1 ft) 0.1 m (.3 ft) 0
400 (81.9) 1.0 m (3.3 ft) 0.7 m (2.3 ft) 0.5 m (1.6 ft) 0.3 m (1 ft) 0
350 (71.7) 1.4 m (4.6 ft) 1.0 m (3.3 ft) 0.7 m (2.3 ft) 0.5 m (1.6 ft) 0.2 m (0.66 ft)
300 (61.4) 2.0 m (6.6 ft) 1.5 m (4.9 ft) 1.1 m (3.6) 0.9 m (3 ft) 0.5 m (1.6 ft)
Table 5.11 Floor Load Rating for 9960 Controller with 1 Disk Array
Required Clearance (a+b)
Clearance (C) in meters (feet)
Floor Load Rating
kg/m
2
(lb/ft
2
)
C = 0 C = 0.2 (0.66) C = 0.4 (1.31) C = 0.6 (1.97) C = 1.0 (3.28)
500 (102.4) 0 0 0 0 0
450 (92.2) 0.2 m (0.66 ft) 0 0 0 0
400 (81.9) 0.5 m (1.6 ft) 0.3 m (1 ft) 0.1 m (.3 ft) 0 0
350 (71.7) 0.9 m (3 ft) 0.7 m (2.3 ft) 0.5 m (1.6 ft) 0.3 m (1 ft) 0
300 (61.4) 1.6 m (5.2 ft) 1.3 m (4.3 ft) 1.0 m (3.3 ft) 0.8 m (2.6 ft) 0.4 m (1.3 ft)