IBM DS8880 Series User Manual

Table 76. Seismic test parameters (continued)
S
DS
(g)
z/h
(incl'd roof
or lower
levels)
HORIZONTAL (g) VERTICAL (g)
MountingA
FLX-H
A
RIG-H
A
FLX-V
A
RIG-V
Notes:
The earthquake resistance kit (feature code 1906) is an optional seismic kit for stabilizing the frame so that the frame
complies with IBM
®
earthquake resistance standards.
Soil classes A, B, C, D, Seismic Risk Category I, II, III, IV, and Seismic Design Categories A, B, C, D, E, and F are all
covered under this certification, limited by the S
DS
value stated in column 2.
The following parameters are used in Table 76 on page 154:
S
DS
Design spectral response acceleration at short period
z/h Quotient of z (height of the structure with respect to attachment point) and h (average building and
structure roof height regarding to the base elevation)
A
FLX-H
Horizontal spectral acceleration calculated for flexible components
A
RIG-H
Horizontal spectral acceleration calculated for rigid components
A
FLX-V
Vertical spectral acceleration calculated for flexible components
A
RIG-V
Vertical spectral acceleration calculated for rigid components
Planning for power requirements
You must select a storage system location that meets specific power requirements.
When you consider the storage system location, consider the following issues:
v Power control selections
v Power outlet requirements
v Input voltage requirements
v Power connector requirements
v Remote force power off switch requirements
v Power consumption and environment
IBM cannot install the storage system if your site does not meet these power
requirements.
Attention: Implementation of surge protection for electronic devices as described
in the EN 62305 standard or IEEE Emerald Book is recommended. If a lightning
surge or other facility transient voltages occur, a surge-protection device limits the
surge voltage that is applied at the storage system power input. A surge-protection
device is required for facilities in Korea or customers that conform to the European
EMC Directive or CISPR 24.
Overview of storage system power controls
The storage system contains power controls on the frames. The power controls can
be configured by a technical service representative. The power controls can also be
accessed through the management console.
The storage system has the following manual power controls in the form of
physical switches that are on the racks:
Local/remote switch
(Available on base frames) The local/remote switch setting determines
Chapter 6. Delivery and installation requirements 155

IBM DS8880 Series Specifications

General

Brand	IBM
Model	DS8880 Series
Category	Storage
Language	English