Service Clearance, Floor Cutout, and Floor Load Rating
This section specifies the service clearance requirements (a + b) for the Universal Storage Platform
VM storage system, based on the floor load rating and the clearance (c), and the required floor
cutouts for cabling.
■
Figure 2-4 shows the service clearance and floor cutout requirements for the single-rack
configuration. Table 2-4 shows the floor load rating and clearance requirements for this
configuration.
■
Figure 2-5 shows the service clearance and floor cutout requirements for the twin-rack
configuration. Table 2-5 shows the floor load rating and clearance requirements for this
configuration.
Notes:
(a) For safe and efficient maintenance operations, clearance (c) should be made as large as
possible.
(b) Actual clearances for installation should be determined after consulting with the
site/facilities manager, as the clearances could vary depending on the building
conditions.
Table 2- 4
Floor Load Rating and Clearances: Single Rack
Floor Load Rating
kg/m
2
(lb/ft
2
)
Required Clearance (a+b) m
Clearance (c) m
C=0
C=0.2
C=0.4
C=0.6
C=1.0
500 (102.4)
0.2
0.2
0.2
0.2
0.2
450 (92.2)
0.2
0.2
0.2
0.2
0.2
400 (81.9)
0.2
0.2
0.2
0.2
0.2
350 (71.7)
0.3
0.2
0.2
0.2
0.2
300 (61.4)
0.6
0.4
0.3
0.2
0.2
Table 2- 5
Floor Load Rating and Clearances: Two Racks
Floor Load Rating
kg/m
2
(lb/ft
2
)
Required Clearance (a+b) m
Clearance (c) m
C=0
C=0.2
C=0.4
C=0.6
C=1.0
500 (102.4)
0.2
0.2
0.2
0.2
0.2
450 (92.2)
0.2
0.2
0.2
0.2
0.2
400 (81.9)
0.2
0.2
0.2
0.2
0.2
350 (71.7)
0.4
0.3
0.2
0.2
0.2
300 (61.4)
0.8
0.6
0.5
0.4
0.2
Just the Facts
October 2007
160
Sun Confidential – For Internal Use and Authorized Partner Use Only
