IBM DS8880 Series Introduction And Planning Manual page 151

Procedure
1. Find out the floor load rating of the location where you plan to install the
2. Determine whether the floor load rating of the location meets the following
3. Using the following table, complete these steps for each storage system.
Table 74. Floor load ratings and required weight-distribution areas
Configuration Total weight of
a
configuration
Model 984 976 kg (2151 lb)
Model 984 and one 2014 kg (4441 lb)
84E expansion
6
model
Model 984 and two 2863 kg (6311 lb)
84E expansion
6
models
storage system.
Important: If you do not know or are not certain about the floor load rating of
the installation site, be sure to check with the building engineer or another
appropriate person.
requirements:
v The minimum floor load rating that is used by IBM is 342 kg per m² (70 lb.
per ft²).
v Use the table to determine the required side, front, and rear weight
distribution area for the specified floor load rating. The side dimensions for
the weight distribution area have a maximum of 76.2 cm (30 in). If the side
dimensions required to meet a specified floor load rating are greater than the
maximum allowed, then the floor load rating is not listed in the table.
v The maximum per caster weight that is transferred to a raised floor tile is 450
kg (1000 lb.).
a. Find the rows that are associated with the storage system.
b. Locate the configuration row that corresponds with the floor load rating of
the site.
c. Identify the weight distribution area that is needed for that storage system
and floor load rating.
Note: If you are unsure about the correct placement and weight distribution
areas for your storage system consult a structural engineer.
Floor load rating,
kg per m
b
2
ft )
610 (125)
488 (100)
439 (90)
342 (70)
610 (125)
488 (100)
439 (90)
342 (70)
610 (125)
488 (100)
439 (90)
342 (70)
Weight distribution areas
2
(lb per
Sides
cm (in.)
7.62 (3)
18 (7)
25 (10)
51 (20)
15.3 (6)
38 (15)
56 (22)
not supported
15.25 (6)
51 (20)
74 (29)
not supported
Chapter 6. Delivery and installation requirements
c, d, e
Front Rear
cm (in.) cm (in.)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
not supported not
supported
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
not supported not
supported
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