Floor Load Ratings And Required Weight - IBM DS8800 Introduction And Planning Manual

1. Find out the floor load rating of the location where you plan to install the
storage units.
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.
2. Determine whether the floor load rating of the location meets the following
requirements:
v The minimum floor load rating used by IBM is 342 kg per m² (70 lb. per ft²).
v When you install a storage unit, which includes both base models and
expansion models, the minimum floor load rating is 361 kg per m² (74 lb.
per ft²). At 342 kg per m² (70 lb per ft²), the side dimension for the weight
distribution area exceeds the 76.2 cm (30 in.) allowed maximum.
v The per caster transferred weight to a raised floor panel is 450 kg (1000 lb.).
3. Using Table 52, perform the following steps for each storage unit:
a. Find the rows that are associated with the storage unit.
b. Locate the configuration row that corresponds with the floor load rating of
the site.
c. Identify the weight distribution area needed for that storage unit and floor
load rating.
Table 52. Floor load ratings and required weight distribution areas
Configuration of Total weight of
storage unit configuration
(Note 1) (Note 2)
Model 941 1200 kg
(2-way) (2640 lb)
Model 941 1256 kg
(4-way) (2770 lb)
Model 941 and 2354 kg
one 94E (5190 lb)
expansion model
Model 941 and 3220 kg
two 94E (7100 lb)
expansion models
Model 941 and 4087 kg
three 94E (9010 lb)
expansion models
Chapter 6. Meeting DS8000 series delivery and installation requirements
Floor Load Weight Distribution Areas
Rating, kg (Notes 3, 4, and 5)
per m² (lb
Sides cm
per ft²)
(in.)
610 (125) 2.5 (1)
488 (100) 17.8 (7)
439 (90) 28 (11)
342 (70) 58.4 (23)
610 (125) 5.1 (2)
488 (100) 22.9 (9)
439 (90) 33.0 (13)
342 (70) 63.5 (25)
610 (125) 7.6 (3)
488 (100) 33.0 (13)
439 (90) 50.8 (20)
342 (70) Not recommended
610 (125) 0 (0)
488 (100) 30.5 (12)
439 (90) 53.3 (21)
342 (70) Not recommended
610 (125) 0 (0)
488 (100) 27.9 (11)
439 (90) 61.0 (24)
342 (70) Not recommended
Front cm Rear cm
(in.) (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)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
66.1 (26) 66.1 (26)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
61.0 (24) 61.0 (24)
76.2 (30) 76.2 (30)
76.2 (30) 76.2 (30)
149