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Power modules
The BladeCenter unit comes with two or four hot-swap power modules.
Power modules are needed in bays 1 and 2 if you install blade servers in blade
bays 1 through 7 or if you install I/O modules in I/O module bays 1 through 4 or 7
through 10.
Power modules are needed in power module bays 3 and 4 if you install blade
servers in blade bays 8 through 14 or if you install I/O modules in any of I/O
module bays 5 through 10.
Each pair of power modules is redundant. If either power module fails, the
remaining power module continues to supply power, but there is no redundancy; the
failed power module must be replaced as soon as possible.
Blower modules
The BladeCenter unit comes with two hot-swap blowers for cooling redundancy. The
blower speeds vary depending on the ambient air temperature at the front of the
BladeCenter unit and the temperature of internal BladeCenter components. If the
ambient temperature is 25°C (77°F) or below, the BladeCenter unit blowers will run
at their minimum rotational speed, increasing their speed as required to control
internal BladeCenter temperature. If the ambient temperature is above 25°C (77°F),
the blowers will run faster, increasing their speed as required to control internal
BladeCenter unit temperature. If a blower fails, the operating speed of the
remaining blower might increase and continue to cool the BladeCenter unit and
blade servers. Replace a failed blower as soon as possible, to restore cooling
redundancy.
Your BladeCenter might be equipped with standard blower modules (part number
44E5083), or it might be equipped with high-efficiency blower modules (part number
68Y8205). The standard and high-efficiency blower modules are not
interchangeable and should not be mixed in the same BladeCenter unit.
For a list of supported options for the BladeCenter, see the ServerProven
http://www.ibm.com/servers/eserver/serverproven/compat/us/.
The IBM Documentation CD
The IBM BladeCenter Documentation CD contains documentation for your
BladeCenter unit in Portable Document Format (PDF) and includes the IBM
Documentation Browser to help you find information quickly.
Hardware and software requirements
The IBM BladeCenter Documentation CD requires the following minimum hardware
and software:
v Microsoft Windows NT 4.0 (with Service Pack 3 or later), Windows 2000, or Red
v 100 MHz microprocessor
v 32 MB RAM
v Adobe Acrobat Reader 3.0 (or later) or xpdf, which comes with Linux operating
Hat Linux
systems. Acrobat Reader software is included on the CD, and you can install it
when you run the Documentation Browser.
®
list at
5
Chapter 1. Introduction
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